无线传感器网络TCP性能的改善机制

Improving Scheme of TCP Performance in Wireless Sensor Network

在无线传感器网络中,节点分布过于密集或大量数据流的突发将造成拥塞,导致报文丢失,引起吞吐量下降和能量浪费。该文提出一种新的拥塞控制机制PTCP,通过分段调整慢启动阶段的TCP窗口增长速度控制拥塞。仿真结果证明,该机制有效解决了传感器网络中的拥塞控制问题,提高了无线传感器网络的TCP性能。

In Wireless Sensor Network（WSN）, congestion may occur when sensor nodes are densely distributed or burst a mass of data flows, the congestion tends to cause packet loss, which sequentially causes lower throughput and wastes energy. This paper proposes a new congestion control scheme, phase-divided TCE It controls the congestion through phase-divided adjusting of the growth rate of the TCP window in the slow-start. Simulation results demonstrate that this scheme can dramatically resolve congestion control problem, and improve TCP performance of WSN.