| Experimental study of channel delay impact on throughput performance of TCP and its extensions in space |
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| 作者姓名： | WANG Ru-fa WANG Ru H. |
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| 作者单位： | WANG Ru-fa1，WANG Ru H.2 (1School of Computer Science，Gansu Institute of Political Science and Law，Lanzhou 730070，China) (2Department of Electrical Engineering，Lamar University，Beaumont，TX 77710-1829，USA) |
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| 摘 要： | INTRODUCTION As the Internet has been dramatically changing the world,there is an initiative in the commercial and military world to expand the Internet into space en-vironment using Internet-type protocols such as the most commonly used TCP/IP.However the space environment poses a number of challenges in pro-viding reliable end-to-end data communication with a user-specified level of service.Losses due to trans-mission errors,long round trip times(RTTs),con-strained bandwidth,asymmet…
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| 关 键 词： | 互联网协议 卫星通信 信道延迟 TCP 传输控制协议 扩展空间 |
| 收稿时间： | 2005-06-03 |
| 修稿时间： | 2005-07-22 |
Experimental study of channel delay impact on throughput performance of TCP and its extensions in space |
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| WANG Ru-fa WANG Ru H..Experimental study of channel delay impact on throughput performance of TCP and its extensions in space[J].Journal of Zhejiang University Science,2005,6(10):1015-1020. |
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| Authors: | Ru-fa Wang Ru H Wang |
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| Institution: | (1) School of Computer Science, Gansu Institute of Political Science and Law, 730070 Lanzhou, China;(2) Department of Electrical Engineering, Lamar University, 77710-1829 Beaumont, TX, USA |
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| Abstract: | Substantially long round trip time (RTT) in space channel hurts TCP interactions between the sending and receiving ends, and limits the usefulness and effectiveness of TCP feedback. Space Communication Protocol Standards-Transport Protocol (SCPS-TP) is a Transmission Control Protocol (TCP) enhancement method aimed at improving its performance in space and interplanetary Intemet and is expected to have capability of being feasible applied to experimental evaluation of the effectiveness of SCPS-TP in coping with long channel delay. This paper presents an experimental evaluation of channel delay impact on throughput performance of SCPS-TP over LEO/GEO-stationary space links using a test-bed, compared with the widely deployed TCP. |
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| Keywords: | Intemet protocols Satellite communication Channel delay TCP SCPS-TP |
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