EBAT: Energy Balanced Adaptive Transmission Algorithm for Sensor Networks
In wireless sensor networks, balanced energy dissipation is crucial to achieving satisfactory network lifetime. Since all data packets usually have to be forwarded to the base station via multi-hop routing, the traffic pattern is highly non-uniform, putting a high burden on the sensor nodes close to the base station. This paper proposes an algorithm which consists of centralized and distributed parts to efficiently balance the energy consumption among sensor nodes. In our algorithm, a sensor node either sends a data packet directly to the base station or sends the data packet to its successor node along a multi-hop path. For each sensor node, a proportion value of the multi-hop transmission times to the direct transmission times is calculated by the base station through using the centralized part of the algorithm. According to the proportion value, each sensor node uses the distributed part of the algorithm to decide its data packet delivery path every time. The characteristic of our algorithm is low complexity and effective. Simulation results demonstrate that our algorithm enables the sensor nodes to consume energy more uniform in the process of data transmission and that the performance is superior in prolonging the system lifetime of up to 50％ over conventional routing protocols.
Zhongwen Guo Weiqin Lv Lipeng Zhang
Department of Computer Science Ocean University of China Qingdao 266110
国际会议
南宁
英文
2007-07-20（万方平台首次上网日期，不代表论文的发表时间）