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Indexed by:会议论文

Date of Publication:2008-09-25

Included Journals:EI、Scopus

Page Number:767-774

Abstract:A key problem in research on Wireless Sensor Networks (WSNs) is how to improve energy efficiency and extend the lifetime of sensor nodes and therefore the WSNs, In this paper, we address this problem and present a geography-based heterogeneous hierarchy routing (GBHHR) protocol. GBHHR adopts hierarchy structure for better data congregation, which can improve the efficiency of data collection and uses heterogeneous nodes as cluster heads to solve the problem of selecting cluster head in traditional hierarchy routing algorithms. A dormancy mechanism is introduced to heterogeneous node for energy saving and a multi-jump data transmission mode is applied for remote and wide-area applications. Furthermore, a new geographical routing algorithm, named Hole-Forewarning Routing algorithm (HFR), is proposed to solve the problem of hole during routing path. Simulation results show that GBHHR has higher energy efficiency1than traditional geographical routing and hierarchy routing. © 2008 IEEE.