摘要
复杂的无线信道环境,使得传输控制协议(TCP)在无线网络中难以发挥较优性能,导致网络吞吐能力大幅下降。为此,在总结分析无线网络环境中影响TCP性能原因的基础上,针对信道高误码、链路中断引起的丢包,带宽资源竞争引起的时延抖动等所导致的TCP性能下降,综述相应的TCP改进机制,并对改进机制的性能进行分析比较。结果显示,相对于传统TCP,这些机制能够更好地适应无线网络环境,提升网络吞吐量。
The Transmission Control Protocol（TCP） can not show good performance in the complicated wireless channel network,so that the throughput of the network decays remarkably.Aiming at this problem,this paper analyzes the reasons affecting the network transmission performance firstly,and then summarizes some improved mechanisms of TCP to the questions,such as packet loss which is caused by high bit error rate and link outage,and delay jitter which is due to band competition.The comparative result indicates that the improved mechanisms can adapt the wireless network environment much better than the traditional TCP and improve the throughput of network.
出处
《计算机工程》
CAS
CSCD
北大核心
2016年第1期103-108,共6页
Computer Engineering
关键词
传输控制协议
无线网络传输
随机误码
链路中断
往返时延
Transmission Control Protocol（TCP）
wireless network transmission
random error code
link interruption
round-trip time
