Achieving a balanced optimisation between network lifetime and data delivery latency in multihop wireless sensor networks. (5th July 2019)

• Record Type: Journal Article
• Authors: Babu, Ravi; Shenoy, Udaya Kumar K.; Patil, Kiran Kumari
• Is Part Of: International journal of autonomous and adaptive communications systems. Volume 12:Number 3(2019)
• Page Start: 244
• Page End: 263
• Publication Date: 2019-07-05
• Subjects: data gathering -- message delivery -- data delivery latency -- energy-delay optimisation -- mobile sink -- multihop communication -- network lifetime -- virtual overlay -- wireless sensor networks -- WSNs -- hotspot problem -- energy-delay trade-off -- sensor nodes -- energy consumption -- balanced message transmission; Adaptive computing systems -- Periodicals; Wireless communication systems -- Periodicals; Computer networks -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-8632

Abstract

Data gathering using mobile sinks is considered one of the efficient and cost-effective strategies to mitigate the hotspot problem in wireless sensor networks (WSNs). Although sink mobility is beneficial in many ways, these benefits are not without its new challenges. A major concern is achieving a good balance between sensors' energy consumption and message delivery latency. The unique characteristics and requirements of wireless sensor networks make this task a significant challenge. Another major challenge is coping with the changing topology caused by the sink mobility. The sensor nodes are required to maintain fresh routes toward the latest sink location for efficient data delivery. This paper proposes data gathering schemes to address these two major issues in WSNs by using a virtual overlay structure built over the existing physical network. Simulation results reveal a reduced route reconstruction cost and a good trade-off between network life-time and data delivery latency.