| 一种新的卫星网络传输控制协议 | |
| 刘炯 ; 曹志刚 ; Liu Jiong ; Cao Zhi-Gang | |
| 2010-05-12 ; 2010-05-12 | |
| 关键词 | 卫星通信 传输控制协议 长传播延时 随机和突发误码 带宽不对称 Satellite communication TCP Long propagation delay Random and burst error Bandwidth asymmetry TN927.2 |
| 其他题名 | A Novel Transmission Control Protocol for Satellite Networks |
| 中文摘要 | 为了解决TCP协议在卫星通信网络中性能差的问题,该文提出了一种适合卫星网络的新型传输控制协议——TP-Satellite。为了加速在连接开始阶段拥塞窗口(cwnd)增涨速度,该协议不再采用传统的Slow Start策略,而是采用一种新的窗口增涨策略——超起始策略。为了将误码与网络拥塞造成的数据丢失区分开,协议还采用基于不同优先级IP数据交错发送的丢失判断策略。另外,协议采用了主动周期应答策略。通过理论分析和仿真比较,TP-Satellite协议能够迅速提升数据发送速率和有效地区分数据丢失原因,明显提高前向链路的吞吐量,同时降低反向链路的带宽占用。; To address the problem that TCP performance degrades significantly on the Satellite communication networks,a new transport control protocol,TP-Satellite is introduced.In order to increase the Congestion Window (cwnd)rapidly at the beginning of data transmission,the traditional Slow Start strategy is replaced by a new strategy,named as Super Start.In order to decouple congestion decision from errors,a new scheme,which is based on two class priority IP packets alternately sending,is included in TP-Satellite.Bandwidth asymmetry problem is addressed by adoption of a ACK periodically sending strategy.Theoretical analyses and simulations indicate that TP-Satellite can increase the sending rate rapidly,discriminate the reason of packet loss effectively,enhance throughput performance significantly,and reduce the bandwidth used in the reverse path sharply. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/28127]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 刘炯,曹志刚,Liu Jiong,等. 一种新的卫星网络传输控制协议[J],2010, 2010. |
| APA | 刘炯,曹志刚,Liu Jiong,&Cao Zhi-Gang.(2010).一种新的卫星网络传输控制协议.. |
| MLA | 刘炯,et al."一种新的卫星网络传输控制协议".(2010). |
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