Inter national J our nal of Electrical and Computer Engineering (IJECE) V ol. 10, No. 1, February 2020, pp. 500 511 ISSN: 2088-8708, DOI: 10.11591/ijece.v10i1.pp500-511 r 500 Ener gy efficient intelligent r outing in WSN using dominant genetic algorithm Shanthi D L 1 , Dr . K esha v a Prasanna 2 1 Department of Information Science and Engineering, BMSIT & M, Bang alore, India 2 Department of Computer Science and Engineering, CIT , T umkur , India Article Inf o Article history: Recei v ed Feb 14, 2019 Re vised Aug 19, 2019 Accepted Aug 30, 2019 K eyw ords: Ener gy ef ficient Genetic algorithm Heuristic Mobility Netw ork lifetime ABSTRA CT In the current era of wireless sensor netw ork de v elopment, among the v arious challeng- ing issues, the life enhancement has obtained the prime interest. Reason is clear and straight: the battery operated sensors do ha v e limited period of life hence to k eep the netw ork acti v e as much as possible, life of netw ork should be lar ger . T o enhance the life of the netw ork, at dif ferent le v el dif ferent approaches has been applied, broadly defining the proper scheduling of sensors and defi ning the ener gy ef ficient commu- nication. In this paper heuristic based ener gy ef ficient communi cation approch has applied. A ne w de v elopment in the Genetic algorithm has presented and called as Dominant Genetic algorithm t o determine the optimum ener gy ef ficient routing path between sensor nodes and to define the optimal ener gy ef ficient traj ectory for mobile data g athering node. Dominanc y of high fitness solution has included in the Genetic algorithm because of its natur al e xistence. The proposed solution has applied the con- nection oriented crosso v er and mutation operator to ma intain the feasibility of gener - ated solution. The proposed solution ha s applied with v arious simulation e xperiments under tw o dif ferent scenarios: in first case ener gy ef ficient routes among the sensors ha v e e xplored to deli v er the information from source sens or to the sink node and in second case, ener gy ef ficient route among all local data hubs for mobile data g athering node has obtained. The proposed solution performances ha v e been analyzed quantita- ti v ely and analyt ically . It has observ ed with v arious e xperimental results that proposed method not only has deli v ered the better solution b ut also has f aster con v er gence and high le v el of reliability in compared to con v entional form of Genetic algorithm. Copyright c 2020 Institute of Advanced Engineering and Science . All rights r eserved. Corresponding A uthor: Shanthi D L, Department of ISE, BMS Institute of T echnology , Bang alore-64, India. T el: +91-9449176450 Email: gopalaiahshanthi@bmsit.in 1. INTR ODUCTION The inno v ations and progress in wireless communication and micro-sensing deli v ers a useful means to observ e en vironment, ecological system, personal health, in b uilding smart-homes, military surv eillance, v ehicle monitoring and so on. An y sensor netw ork is implemented using a huge number of tin y de vices that are limited by sensing, processing, transmitti ng abilities, and are battery po wered. Collect ing data is the most common and essential tasks in sensor netw orks; ef fecti v eness of e x ecuting data collection opera- tion defines netw ork lifetime. Due to the inadequate radio resources and the ener gy limitation on each sensor node, it is v ery moti v ating task t o e xtend the netw ork lifetime while maintaining certain data collection rate. Se v eral w ays are used to transfer the sensed data from sensor nodes to the base station for processing say multi-hop. Ener gy is the primary apprehension to W ireless Sensor Netw orks (WSNs) for all its transmis- J ournal homepage: http://iaescor e .com/journals/inde x.php/IJECE Evaluation Warning : The document was created with Spire.PDF for Python.
Int J Elec & Comp Eng ISSN: 2088-8708 r 501 sion and reception of data b ut, consumes a lot of ener gy to synchronize and to ensure the location a w areness of the sensors. A number of researchers ha v e suggested mobility as a solution to the problem of data g athering [1-7]. Contemporary study has re v ealed that a significant decrease in communication ener gy con- sumption using controlled mobility in WSN. Example, a Mobile Base Station (MBS) can go from place to place in the sensing area to collect data from nodes using short-range communications. Introduction of mobile nodes in to WSN, ener gy utilization of static nodes may be reduced. Unscheduled mobility of mobile node might increase latenc y in data collection. Hence, it is necessary that trajectory obtained by MBS should be optimal in the sense of tra v el distance and in v ested ener gy . Major limiting f actor of a WSN is its node’ s ener gy , which demands the design of an ener gy-ef ficient routing protocol that increases the whole system performance. In this paper tw o dif ferent pers pecti v es of ener gy sa ving scheme in WSN has presented. In the firs t case the need of routing path between tw o sensors obtained which carry the minimum e xpenditure of ener gy while in other case the trajectory of mobile data g athering has been defined to collect the data from dif ferent local base nodes which already has the information of all sensors belonging to their clusters. It is assumed that in the first case there is no mobility observ ed among t he sensors while in the second case cluster heads were already a v ailable. Because of comple xity in v olv ed with the problem is NP hard, heuristic approach has applied to achie v e the solution. Among the v arious possibilities, the heuristic approach of Genetic algorithm has pro v ed with the time as one of the more dominant and wide applicable method. There are v arious issues with con v entional approach of Genetic algorithm (CGA) lik e unf air selection of parents to produce of fspring, locus of crosso v er point, strate gy of mutation applied and more importantly balancing between e xploration ag ainst e xploitation. T o o v ercome these issues, a dominant form of Genetic al g or ithm has proposed which pro vide f air opportunities to each and e v ery parent in participation of of fspring creation helps in e xploration, while elite members of the population deli v er the rule of dominanc y to e xploit better one. A f air selection process through tournament selection has applied which deli v er the number of opportunities to each and e v ery one to pro v e itself rather than fitness oriented selection which causes f aster con v er gence with sub-optimal solution. From simulation e xperiments it has been observ ed that there is better and f aster routing strate gy achie v ed within v ery less number of iterations which mak es the proposed solution v ery computation ef ficient also. 2. RELA TED W ORK In the direction of ener gy sa ving scheme in WSN, there were number of dif ferent approaches by dif ferent researchers ha v e been proposed in the past. In [1], using the theory of potential in ph ysics, an Ener gy- Balanced Routing Protocol (EBRP) had been designed by crea ting a mix ed virtual potential field in terms of depth, ener gy density , and residual ener gy . In [2], the nodes deplo yed in WSN uses t he rene w able ener gy generated by solar panels b uilt o v er for routing and sensing, here ener gy-ef ficient routing protocol for ener gy harv esting WSN is designed and implemented. While choosing route the parameters considered are trans- mission quality , ener gy depletion and ener gy w asting and the ef fect of bit error rate (BER). T o maximize this WSN feature, the data and message deli v ery routes are carefully chosen so that o v erall ener gy consumption is minimized. M. Bayani [3] had analyzed a detai led comparison between typical WSN protocols and their impacts o v er the WSN lifetime and percei v ed that flat and cluster -based protocols can increase WSN lifetime in dif ferent w ays. Study has presented in [4] o v er basic optimization of base-station positioning in WSN so that the data from the s ensors can be communicated in an ener gy-ef ficient manner . Chaonan W ang [5] had proposed a prototypical and e v aluated the consistenc y and lifet ime of a sensor node in three typical set-ups, pro viding precise reliability analysis of WSN systems. Substantial impro v ement in WSN lifetime could be attained by int roducing standby or spare nodes. These spare nodes are substituted, once an y prime (original) node is depleted with ener gy . Bilal Ab uBakr [6] had proposed the LEA CH-SM protocol, this is a modi- fied form of Lo w-Ener gy Adapti v e Clust ering Hierarch y (LEA CH) desi g ne d by pro viding an optimum spare nodes and ener gy management in spares. Mariam Akbar [7] had proposed Balanced Ener gy-Ef ficient Netw ork Inte grated Super Heterogeneous for heterogeneous WSNs to impro v e stability , lifetime and throughput. In the direction of impro ving the performance of WSN with respect to ener gy requisite and to increase net- w ork lifetime a communication/computation ener gy trade-of f need to be analyzed [8]. The analysis could be made at netw ork-le v el (i.e., all nodes in the netw ork use the same strate gy) or at a node-le v el (i.e., sensor nodes do not necessarily ha v e identical strate gies). Robert M.Curry [9] had e xplored a number of research methodolo- Ener gy ef ficient intellig ent r outing in WSN using ... (Shanthi D L) Evaluation Warning : The document was created with Spire.PDF for Python.
502 r ISSN: 2088-8708 gies and lee w ay to the problem that includes online routing, clustering methods, and lifetime maximization on specially structured netw ork. Based on Lagrange relaxation method, [ 1 2] had proposed an ener gy optimization method to assure delay constraint. An objecti v e function has been proposed in terms of ener gy consumption and delay and also defined a method to find an optimal multiplier for that objecti v e function. Based on Ant colon y algorithm optimal path for routing has proposed in [13]. Jian Shen [14] had proposed an ener gy-ef ficient centroid-based routing protocol (EECRP) for WSN assisted IoT to get better performance of the netw ork. Rumor routing is another typical random w alk routing protocol defined, b ut the problem, is not scalable and can lead to spiral paths. Hsiang-Hung Liu [15] had considered straight-line routing (SLR) to decrease the ener gy utilization of sensor nodes in WSNs. Locality of sink node may considerably af fect the ener gy dissipation and throughput of the netw ork. Y ah ya K ord T amandani [16] had gi v en in v estig ation o v er an opti- mum position for the sink node in such a w ay that the sum of distances from all the sensor nodes to the sink node is minimized. An Ener gy Ef ficient Connected Co v erage (EECC) scheduling is made use to e xtend the lifetime of the WSN is gi v en in [17]. Secure and ener gy-ef ficient method of optimization has been proposed in [18] using the Dij-Huf f Method. T urki A. Alghamdi [19] had proposed a WSN-based multi-hop netw ork infrastruc- ture, to increase netw ork lifetime by optimizing the routing strate gy . A proposal of a no v el routing architecture has sugges ted in [20] for s e v ere en vironment monitoring in heterogeneous WSN. The aim w as to impro v e the stability period and netw ork lifetime by restriction the distance between the sensor nodes and the g ate w ay node by mitig ating the hot-spot problem in the netw ork. Random projection based on compressed sensing might decrease the v olume of data communicated in a WS N, and ef ficient routing could ease the netw ork traf fic. Jianhua Qiao [21] presented a Random projection-Polar coordinate-Chain routing (RPC) scheme to de v elop the time and ener gy ef ficient protocol. The re vie w in [22] had presented the state of the art in the ener gy man- agement schemes, and the a v ailable challenges in the area of WSN. [23] had proposed a method to reduce the ener gy consumption by ener gy balancing in clusters among all sensor nodes to minimize the ener gy dissipation during netw ork communications. Arun L.Kakhandki [24] presented a distrib uted MA C and transcei v er opti- mization technique for selecti v e hop de vice selection to minimize ener gy consumption per bit and maximize the lifetime of sensor netw ork. The study in [25] presented a surv e y approach for dif ferent aspects in v olv ed with Heterogeneous W ire- less Sensor netw ork and design issues for routing in heterogeneous en vironment. Hema v athi P [26] had applied the modified v ersion of Bacteria F oraging Optimization to optimize the ener gy consumption in data aggre g ation process in WSN. Basa v araj G.N [27] had applied Lo w Latenc y and Ener gy Ef ficient Routing (LLEER) design for heterogeneous WSN to pro vide the trade-of f between ener gy ef ficienc y and latenc y requirement. Chaitra HV [28] had presented cluster head selection based life enhancement of netw ork using a Multi-objecti v e impe- rialist competiti v e algorithm (MOICA) . 3. PR OPOSED W ORK 3.1. Mathematical modeling of pr oblem Mathematical representation of the objecti v e function can be defined as the minimizat ion of the total ener gy spends o v er the considered route path. In graphical model of simulated net w o r k of WSN G (V , E), Ener gy ef ficient routing betwe en defined sensor nodes (P ,Q) can be consider as finding a number of possi- ble paths f P i j i 2 f 0 ; 1 ; :::: gg sequentially o v er a set of graphs f G i j i 2 f 0 ; 1 ; :::: gg , which must carry the minimum ener gy cost path as gi v en in equation (1) C F ( P Q ) = M in 8 < : X l 2 P i ( s;r ) C F l 9 = ; (1) The optimal routi n g has transformed as a problem of optimization where objecti v e w as to m inimize the total in v ested tra v el cost as a function of ener gy . The optimization of objecti v e function has achie v ed by applying a modified form of Genetic algorithm which has used a more natural mechanism of “Dominanc y” in the formation of ne w solution population. Genetic algorithm has sho wn great interest by a number of researchers [10, 11]. 3.2. Dominant genetic algorithm A solution population is initialized for a defined source-destination sensor pair which uses a concept of connected possible solution in the feasibility domain of possible paths. An equal opportunity Int J Elec & Comp Eng, V ol. 10, No. 1, February 2020 : 500 511 Evaluation Warning : The document was created with Spire.PDF for Python.
Int J Elec & Comp Eng ISSN: 2088-8708 r 503 for each parent is performed through uniform distrib ution probability in the process of of fspring formation. This step is v ery natural and pro vides t he f acility of better e xploration of the solution domain. One point crosso v er operator has applied which carried the node connected feature, where a set of common nodes in both parents form the possible locus of crosso v er point. If there were more tha n one possible locus in the set, a uniform random process has applied to select the particular one. Such kind of cross o v er m aintain the e xplored solution under the feasibility domain and may cause the change i n the le ng t h of generat ed of fspring. A dynamic mutation strate gy for each locus of of fspring has under lo w mutation probability t o maintain the di v ersity is used. A possible candidate of mutation is the member from a set of all possible connected sensor nodes from the just pre vious sensor . Ag ain such process maintains the feasibility of e xplored solution. Once the number of generated of fspring’ s is same as parent population size, both populations are mer ged to form a selec- tion pool where a tournament select ion process is applied. In this selection process for each member a number of opponent members are selected randomly and it depends upon the fitness comparison and a tournament score declared. The higher scored members form a ne w population. In the ne w population, under a defined range, a random number of members are selected as elite members as well as poorest members depending upon their fitness. Elite member generate the of fsprings and the y replace the poorest member from the population if their fitness is better . Such kind of dominanc y is v ery ob vious and could be observ ed in human population as well. This dominanc y in v olv ement mak es population more fitter as well as increase the rate of con v e gence without compromise with the e xploration le v el. The concept of conditional niche has also applied where the pre vi- ous best observ ed solution replaces the weak est member of the solution if the fitness allo wed. The obtained final population has considere d as t h e ne xt generati on population for further process. The funct ional block diagram of proposed algorithm has sho wn in Figure 1.The number associated with the edges indicate the flo w of process sequentially . 3.2.1. Chr omosome r epr esentation Initial solution population has defined under a constraint based definition of nodes connection between a predefined source-destination pair . The follo wing steps are used in the formation of each member in the initial population. Pseudo code f or initial solution f ormation: 1. Initialization of Population size F or each member: fix ed Sr & Dt: start solution as S   [Sr] 2. Find Possible neighbors of last member of S, say NR   f Ni,Nj,....Nm g 3. Add a node from set NR to S: [Sr ,Nj]   [NR ]   [Uniform Random Process] 4. Go to step 2 if the last node of [S(end)] # Dt. 3.2.2. Connecti vity based cr osso v er operator and mutation In the considered form of WSN, normal course of crosso v er operation is not possible because of limited connecti vity association with other a v ailable sensor nodes. As in the case of normal process of crosso v er , an y random position is considered as point of crosso v er , obtained of fspring may carry the infeasibilit y and it’ s not possible to recorrect that infeasibility with penalty proce ss. In the proposed form of crosso v er same locus position will not appear , instead of that same node will be considered as the position of crosso v er as sho wn in Figure 2. As in Figure 2 (a), parents P1 AND P2 ha v e tak en for crosso v er . There are tw o attractors a v ailable in chromosomes (N3, N2) and (N2, N6), where the first position (lik e N3) is the position from first parent and a second position (N2) is the position from second parent. Other positions are not allo wed to crosso v er; because the y will mak e the solution unfeasible. It is also observ ed that crosso v er can cause the change in chromosome length. In this paper , possi ble domain of change under mutation with each node is the possible number of nodes, which are connected with their neighbors only . In this paper , possible domain of change under mutation with each node is the possible number of nodes, which are connected with their neighbor’ s only . F or a node which has to mutated first all the connected nodes ha v e e xplored in the sensor netw ork and nodes which already e xisted beside in the solution, discarded. From the remaining nodes, through uniform random selec tion process a node has selected as the mutated node. F or e xample the mutation strate gy for the node 9th of the of fspring O2 has sho wn in Figure 2(c). First for the node 9, all the connected nodes ha v e e xplored in the sensor netw ork and it has appeared that nodes 1, 8, 19, 17 and 4 are the connected nodes. Nodes 1 and 8 which were already e xisted beside in the solution discarded Ener gy ef ficient intellig ent r outing in WSN using ... (Shanthi D L) Evaluation Warning : The document was created with Spire.PDF for Python.
504 r ISSN: 2088-8708 and among remaining nodes 4, 17 and 19, a node (for e xample node 19 in MO2) has selected through uniform random selection process. Figure 1. Functional representation of proposed Dominant Genetic algorithm (a) (b) (c) Figure 2. Connecti vity based crosso v er , (a) parents selected for crosso v er (b) generated of fspring after crosso v er (c) Mutation Strate gy Int J Elec & Comp Eng, V ol. 10, No. 1, February 2020 : 500 511 Evaluation Warning : The document was created with Spire.PDF for Python.
Int J Elec & Comp Eng ISSN: 2088-8708 r 505 3.3. Adv antages of pr oposed solution The applied form of proposed solution is ha ving numerous adv antages in terms of finding the ef ficient solution. 1. Dynamic length of solution in DGA has pro vided the possibilities of high le v el of e xploration as well as computational ease. 2. Connected nodes cross-o v er operation only e xplore ne w solution and ne v er destro y the de v eloped so- lution (while in con v entional Genetic algorithm crosso v er operator cause of construction as well as de- struction also which may cause of more number of iterations to appear same solution or may not deli v er the optimal solution at all). 3. Connected node mutation strate gy causes of ne w solution e xploration with minimal computational cost. 4. Routing path feasibility correction process causes of another process to increase the le v el of di v ersity in the solution. 5. Chance of e v ery parent equally in of fspring creation cause of deeper e xploration in solution space. 6. Dominant process pro vides high le v el of balancing between e xploration vs e xploitation. Explored Elite of fsprings e xploited immediately by suppressing the weak est members and cause of f aster con v er gence. 4. SIMULA TION RESUL T T w o dif ferent possibilities of r o ut ing scenarios ha v e e xplored. In the first case number of sensors form a netw ork and communication tak es place between the source node and sink node, as sho wn in Figure 3 simulated netw ork 1 . Such a scenario needs an optimal path so that minimum ener gy is in v ested o v er the communication. In second case, data g athering node mo v es from centroid of one cluster to another cluster to collect the data and after visiting all the clusters it will return back to the starting position, as sho wn in Figure 7 simulated netw ork 2. Both cases can be handled as problem of path optimization. 4.1. Case1. netw ork1 In the area of 200 X 200 square units simulation e xperiment has done in MA TLAB en vironment by random placement of sensors through the uniform distrib ution. A T otal of 50 sensors ha v e deplo yed and with the communication range of 50 units, connecti vity in the netw ork among the sensors has formed. Rather than considering the direct ph ysical Euclidean distance between the connected sensors, a uniform random number in the range of [10, 20] has selected to model in v ested ener gy with the irre gularities e xisted in the practical geographical en vironment. A population size of 20 has selected wit h crosso v er rate as 1 if feasibility e xist otherwise equal to 0. A lo w probability of mutation rate 0.1 has considered in inheriting the parent quality . F or a gi v en node pair , the p r ocess has iterated upto to 20 iterations and 10 independent trials to estimate the statistical significance. Performance qualities ha v e measured in terms of cost of objecti v e function v alue as well as time of solution stability . Figure 4 sho ws lar ge change of con v er gence in CGA under 10 independent trails and Figure 5 sho ws a tight con v er gence in DGA under 10 independent trails for netw ork 1. Figure 6 sho ws a mean con v er gence for CGA and DGA for 10 independent trails. Statistically an impro v ement in the performance is seen in DGA compared to CGA from T able 1 and T able 2 respecti v ely . Figure 3. Simulated netw ork 1 with obtained route between nodes Figure 4. Con v er gence in CGA under 10 independent trials Ener gy ef ficient intellig ent r outing in WSN using ... (Shanthi D L) Evaluation Warning : The document was created with Spire.PDF for Python.
506 r ISSN: 2088-8708 Figure 5. Con v er gence in DGA under 10 independent trials Figure 6. Mean Con v er gence in CGA and DGA o v er 10 independent trials T able 1. Performance of CGA and DGA under 10 independent trials T rial No. CGA DGA P=20; S=50; C=50 Route Cost Iteration Cost Route Cost Iteration Cost 1 103 5 89 6 2 92 7 84 6 3 86 13 79 7 4 108 4 79 2 5 100 6 79 2 6 91 5 79 2 7 84 4 79 2 8 95 11 79 2 9 95 6 79 2 10 103 3 79 2 T able 2. Statistical beha vior of performance in CGA and DGA CGA DGA Route Cost Iteration Cost Route Cost Iteration Cost Best 84.0 3.0 79.0 2.0 W orst 108.0 13.0 89.0 7.0 Mean 95.7 6.4 80.5 3.3 Std.De v . 7.78 3.2 3.4 2.1 4.2. Case1. netw ork2 A netw ork wit h dif ferent source and sink node set up is considered to test the performacne of DGA o v er CGA for 10 independent trails is sho wn in Figure 7. It has observ ed with Netw ork 1 and Netw ork 2, a v ery sharp benefit is obtained with DGA compared to CGA. Figure 8 sho ws a lar ge change in the co v er gence characteristics with CGA while Figure 9 with DGA follo w a v ery tight relation among the dif ferent trials. The clear dif ference of con v er gence between CGA and DGA ha v e sho wn in Figure 10 for neto wrk2 o v er 10 independent trails. The statistical analysis from T able 3 sho ws that DGA has remarkably f aster and lo wer route path cost. T able 4 sho ws statistical beha vior o f performance in CGA and DGA for best , w orst and mean cases approximately 50% increase. In both cases DGA has deli v ered the lo wer v alue of route cost as well as strong reliability in performance. The computation cost is about 2 to 3 iterations in DGA while CGA has tak en around 7 iterations. Int J Elec & Comp Eng, V ol. 10, No. 1, February 2020 : 500 511 Evaluation Warning : The document was created with Spire.PDF for Python.
Int J Elec & Comp Eng ISSN: 2088-8708 r 507 Figure 7. Simulated netw ork 2 with obtained route between nodes Figure 8. Con v er gence in CGA under 10 independent trials Figure 9. Con v er gence in DGA under 10 independent trials Figure 10. Mean Con v er gence in CGA and DGA o v er 10 independent trials T able 3. Performance of CGA and DGA under 10 independent trials T rial No. CGA DGA P=20; S=50; C=50 Route Cost Iteration Cost Route Cost Iteration Cost 1 133 14 125 8 2 169 7 122 6 3 120 8 122 2 4 130 14 122 2 5 132 7 119 4 6 158 5 119 2 7 122 7 119 2 8 131 6 119 2 9 135 6 119 2 10 128 3 119 2 T able 4. Statistical beha vior of performance in CGA and DGA CGA DGA Route Cost Iteration Cost Route Cost Iteration Cost Best 120.0 3.0 119.0 2.0 W orst 169.0 14.0 125.0 8.0 Mean 135.8 7.7 120.5 3.2 Std.De v . 15.5 3.6 2.1 2.5 Ener gy ef ficient intellig ent r outing in WSN using ... (Shanthi D L) Evaluation Warning : The document was created with Spire.PDF for Python.
508 r ISSN: 2088-8708 4.3. T rajectory of data gathering node A simple model of mobile data g athering in WSN has sho wn in Figure 11. Here each cluster is ha ving a cluster head which has all the information of cluster center . Rather than getting the information from each sensor , infor mation collection by data g athering node can sa v e lot of ener gy , and also the delay in information transmission can completely depend upon the trajectory quality . Hence it is necessary; the selected trajectory should be optimal and f aster . Figure 11. Data g athering from centroid sensor node by mobile base node The simulated netw ork consists of 10 clusters and it is assumed that clusters are already formed, en- er gy in v ested to find the trajectory of mobile data g athering node is measured under DGA and CGA o v er 10 trails. Experiments are carried by considering tw o dif ferent starting points for data g athering node. In the first case the starting point for mobile data g athering node is at first cluster while in the second case the starting point is at se v enth cluster . Figure 12 sho ws the trajectory con v er gence in CGA and DGA for modile node starting from 1st cluster , and Figure 13 gi v es con v er gence for mobile node starting from 7th cluster . The performance of DGA and CGA in terms of in v ested ener gy and obtained trajectory for mobile node starting from 1st cluster is sho wn in T able 5 and starting from 7th cluster in T able 6 respecti v ely , and it is observ ed that DGA consumes less ener gy than CGA. Similarly T able 7 and T able 8 sho ws the performance of DGA and CGA with mobile node starting position from 7th cluster . It has observ ed that v ery less ener gy in v ested trajectory has been opted by DGA compared to CGA. The performance of mean con v er gence o v er 10 independent trials has also sho wn in Figure 12 and Figure 13 and in both cases a significant impro v ement has been observ ed with DGA compared to CGA. Figure 12. T rajectory Con v er gence in CGA and DGA o v er 10 independent trials with starting position in 1st cluster Figure 13. Con v er gence in CGA and DGA o v er 10 independent trials with starting position is 7th cluster Int J Elec & Comp Eng, V ol. 10, No. 1, February 2020 : 500 511 Evaluation Warning : The document was created with Spire.PDF for Python.
Int J Elec & Comp Eng ISSN: 2088-8708 r 509 T able 5. Performance under 10 trials by DGA T rial No. Obtained T rajectory by DGA In v ested Ener gy 1 1 6 7 8 5 3 10 2 9 4 1 818 2 1 4 9 2 10 3 5 8 7 6 1 818 3 1 5 3 9 4 2 10 6 7 8 1 836 4 1 4 9 2 10 3 5 8 7 6 1 818 5 1 4 9 2 10 3 5 8 7 6 1 818 6 1 6 7 8 5 3 10 2 9 4 1 818 7 1 4 9 2 10 3 5 8 7 6 1 818 8 1 4 9 3 5 7 8 2 10 6 1 825 9 1 4 9 2 8 7 6 10 3 5 1 826 10 1 6 10 2 4 9 3 5 7 8 1 836 Mean 823.1 Std. De v . 7.46 T able 6. Performance under 10 trials by CGA T rial No. Obtained T rajectory by CGA In v ested Ener gy 1 1 3 5 8 7 6 10 2 9 4 1 832 2 1 4 5 3 9 2 10 6 7 8 1 863 3 1 2 9 10 6 7 8 5 3 4 1 862 4 1 4 2 9 3 5 7 8 10 6 1 855 5 1 8 7 5 3 9 4 2 10 6 1 836 6 1 4 9 2 10 3 5 8 7 6 1 818 7 1 5 3 9 4 2 10 6 7 8 1 836 8 1 4 2 9 3 5 7 8 10 6 1 855 9 1 4 9 2 10 6 7 8 5 3 1 832 10 1 2 8 7 5 3 4 9 10 6 1 860 Mean 844.9 Std. De v . 15.87 T able 7. Performance under 10 trials by CGA T rial No. Obtained T rajectory by CGA In v ested Ener gy 1 7 6 1 4 9 2 10 3 5 8 7 818 2 7 8 2 9 4 1 5 3 10 6 7 826 3 7 8 2 9 4 1 6 10 3 5 7 826 4 7 5 3 9 4 1 6 10 2 8 7 825 5 7 6 10 2 4 9 3 5 1 8 7 836 6 7 6 1 5 3 10 9 4 2 8 7 846 7 7 8 2 4 9 10 3 5 1 6 7 846 8 7 6 10 2 4 9 3 5 1 8 7 836 9 7 6 10 2 1 4 9 3 5 8 7 830 10 7 5 3 9 2 4 1 6 10 8 7 855 Mean 834.4 Std. De v . 11.6 T able 8. Performance under 10 trials by DGA T rial No. Obtained T rajectory by DGA In v ested Ener gy 1 7 8 2 10 6 1 4 9 3 5 7 825 2 7 8 2 9 4 1 5 3 10 6 7 826 3 7 6 1 4 9 2 10 3 5 8 7 818 4 7 6 10 3 5 1 4 9 2 8 7 826 5 7 6 1 4 9 2 10 3 5 8 7 818 6 7 6 1 4 9 2 10 3 5 8 7 818 7 7 6 1 4 9 2 10 3 5 8 7 818 8 7 6 10 3 5 1 4 9 2 8 7 826 9 7 8 1 6 10 2 4 9 3 5 7 836 10 7 5 3 9 4 1 6 10 2 8 7 825 Mean 823.6 Std. De v . 5.7 Ener gy ef ficient intellig ent r outing in WSN using ... (Shanthi D L) Evaluation Warning : The document was created with Spire.PDF for Python.