Abstract: The evenness of energy consumption is one of design challenges for data transmission in Wireless Sensor Networks（WSNs） which are affected by the energy-hole problem.With the circular network model which typically represents for a cluster in the clustered WSNs，the circular field is sliced into concentric circular bands of fixed width.An energy-balanced consumption scheme is then presented by combining the direct transmission protocol and hop-by-hop transmission protocol.Different from other existing schemes，this scheme aims to the balance of the average energy consumption，and can figure out the probabilities of hop-by-hop transmission and those of single-hop transmission by linear equations.Numerical results show this scheme balances the average energy consumption of different bands，while the individual energy consumption is kept in a rather low level.

Key words: wireless sensor networks, energy-balanced consumption, direct transmission, hop-by-hop transmission

摘要： 分簇无线传感器网络中存在着能量空洞的问题，而能量均匀消耗被认为是解决该问题的有效方法。将圆形无线传感器网络划分成不同宽度的同心圆，提出混合单跳传输和多跳传输的策略，以实现能量均匀消耗。与其他已经存在的研究不同，提出的策略针对的是传感器平均能量消耗的平衡，并能用线性方程组计算出多跳转发和单跳转发的概率。数值计算证实本方案能保证不同位置传感器平均能量消耗平衡，且能保持总体能量消耗在某个较低的水平。

关键词: 无线传感器网络, 能量均匀消耗, 单跳转发, 多跳转发