关键词: 无线网络, 网络编码, 能量高效, 额外延迟, 计时控制

Abstract: Timing control is introduced into network coding to further enhance its performance. It is found that when bandwidth is sufficient， the extra delay introduced by waiting for additional data to perform network coding will increase the number of coding without affecting system throughput. Both delay and throughput suffers when bandwidth is insufficient. An adaptive energy-efficient timing control algorithm called AEETC （adaptive energy-efficient timing control in wireless networks with network coding） is proposed which can automatically adjust its behavior on the basis of the network traffic conditions. Simulation results demonstrate that AEETC increases network coding significantly for light network load and is able to provide good performance in terms of delay， throughput and the number of successful coding.

Key words: wireless networks, network coding, energy-efficient, extra delay, timing control