作者: Min Chen , Taekyoung Kwon , Shiwen Mao , Victor C.M. Leung
DOI: 10.1504/IJSNET.2009.026361
关键词:
摘要: Delivering sensory data to the sink reliably in Wireless Sensor Networks (WSNs) calls for a scalable, energy-efficient and error-resilient routing solution. In this paper, Spatial-Temporal relation-based Energy-Efficient Reliable (STEER) protocol is proposed achieve above goals. As opposed next-hop-selection-first, data-relay-next approach, which typical traditional protocols WSNs, STEER reverses these two steps. STEER, each packet relayed by broadcasting, and, among neighbours (closer sink) that receive data, one next-hop node will be elected. so doing, eligibility as next hop evaluated temporal gradient, similar backoff channel access IEEE 802.11 systems. The value of gradient determined locally spatial information neighbour. To quantify systematically, spatial-temporal mapping function proposed. Comprehensive simulations show performs well provide efficient robust highly unreliable WSNs.