在无线环境下，TCP的传输效果要好于不带拥塞控制的UDP。为了满足“集中-分布式”无线流媒体系统进行RTP-over-TCP传输的需要，设计实现了一套双TCP通道的传输方案，并考察了TCP阻塞调用和非阻塞调用在单线程多用户调度方式下的性能。另外，还尝试用多TCP传输技术来改进TCP在无线环境中带宽利用率低的问题，仿真实验结果表明，该方案可得到较好的传输效果。

Under the wireless network, the performance of TCP is better than that of UDP which lack of congestion control. In order to conform the RTP-over-TCP transmission mode to our hybrid centralized-distributed server architecture, we propose a method with double-TCP channel. Besides, we compare the transmit performance of TCP blocking mode to nonblocking mode. Moreover, we try to improve the bandwidth usage of TCP under the wireless network by using muhi-TCP transmission technology. The simulation results demonstrate that our method is applicable.