Using AQM to improve TCP performance over wireless networks

Victor H. Li; Zhi-Qiang Liu; Steven H. Low

doi:10.1117/12.473023

1 July 2002 Using AQM to improve TCP performance over wireless networks

Victor H. Li, Zhi-Qiang Liu, Steven H. Low

Proceedings Volume 4866, Quality of Service over Next-Generation Internet; (2002) https://doi.org/10.1117/12.473023
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

TCP flow control algorithms have been designed for wireline networks where congestion is measured by packet loss due to buffer overflow. However, wireless networks also suffer from significant packet losses due to bit errors and handoffs. TCP responds to all the packet losses by invoking congestion control and avoidance algorithms and this results in degraded end-to-end performance in wireless networks. In this paper, we describe an Wireless Random Exponential Marking(WREM) scheme which effectively improves TCP performance over wireless networks by decoupling loss recovery from congestion control. Moreover, WREM is capable of handling the coexistence of both ECN-Capable and Non-ECN-Capable routers. We present simulation results to show its effectiveness and compatibility.

Citation Download Citation

Victor H. Li, Zhi-Qiang Liu, and Steven H. Low "Using AQM to improve TCP performance over wireless networks", Proc. SPIE 4866, Quality of Service over Next-Generation Internet, (1 July 2002); https://doi.org/10.1117/12.473023

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