http://iaeme.com/Home/journal/IJEET 28 editor@iaeme.com International Journal of Electrical Engineering & Technology (IJEET) Volume 10, Issue 6, November-December 2019, pp. 28-35. Article ID: IJEET_ _06_004 10 Available online at http://iaeme.com/Home/issue/IJEET?Volume=10&Issue=6 Journal Impact Factor (2019 9.7560 (Calculated by GISI) www.jifactor.com ): ISSN Print: 0976-6545 and ISSN Online: 0976-6553 © IAEME Publication PERFORMANCE IMPROVEMENT OF WIRELESS SENSOR NETWORKS N Hemalatha Assistant Professor, Electronics and Communication Engineering, Rathinam Technical Campus, Coimbatore, Tamilnadu, India K Geetha Associate Professor, Electronics and Communication Engineering, Rathinam Technical Campus Coimbatore, Tamilnadu, India R Naveenkumar and R Nandhakumar Assistant professor, Electronics and Communication Engineering, Rathinam Technical Campus Coimbatore, Tamilnadu, India ABTRACT Using a mobile sink to reduce the energy consumption of nodes and to prevent the formation of energy holes in wireless sensor networks (WSNs). Benefits are dependent on the path taken by the mobile sink, particularly in delay sensitive applications ,as all sensed data must be collected within a given time constraint. An approach proposed to address this challenge is to form a hybrid moving pattern in which a mobile sink node only visits rendezvous points (RPs), as opposed to all nodes. Sensor nodes that are not RPs forward their sensed data via multi-hopping to the nearest RP node. Fundamental problem becomes computing a tour that visits all the RPs within a given delay bound. Identifying the optimal tour, however is an NP hard problem. To address this problem Weighted Rendezvous Planning(WRP) method is proposed whereby each sensor node is assigned a weight corresponding to its hop distance from the tour and the number of data packets that it forwards to the closest RP.WRP enables a mobile sink to retrieve all sensed data within a given deadline while conserving the energy expenditure of sensor nodes. More specifically, WRP reduces energy consumption and also increases the network lifetime as compared with existing methods. Key words: Data collection, Mobile sink, scheduling, wireless sensor networks (WSNs ). Cite this Article: N Hemalatha, K Geetha, R Naveenkumar and R Nandhakumar, Performance Improvement of Wireless Sensor Networks, International Journal of Electrical Engineering and Technology, 10(6), 2019, pp. 28-35. http://iaeme.com/Home/issue/IJEET?Volume=10&Issue=6