摘要： 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。
关键词:
无线传感器网络,
传输控制协议,
TCP窗口增长速率
Abstract: 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 TCP. 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.
Key words:
Wireless Sensor Network(WSN),
transmission control protocol,
growth rate of TCP window
中图分类号:
李炉焦;李 云;陈前斌;聂 能. 无线传感器网络TCP性能的改善机制[J]. 计算机工程, 2008, 34(24): 91-93.
LI Lu-jiao; LI Yun; CHEN Qian-bin; NIE Neng. Improving Scheme of TCP Performance in Wireless Sensor Network[J]. Computer Engineering, 2008, 34(24): 91-93.