Abstract
TCP responds to all losses by invoking congestion control and avoidance algorithms, resulting in degraded end-to-end performance in lossy environments. In recent years, two approaches have been taken to improve the performance of TCP in such networks. One is local retransmission and the other is end-to-end control. These schemes either impose a heavy computational burden on base station, or cannot achieve both efficient bandwidth usage and fairness between flows because they cannot distinguish the flows on low quality wireless links from flows on high quality links. In this paper, we present a new wireless TCP protocol - End-to-end Link State Aware TCP (TCP-ELSA) - that adjusts the sending rate of a TCP flow according to the wireless link quality, but still provides good congestion control when congestion-related losses occur. The aim of TCP-ELSA is to adapt the sending rate of TCP to the link quality so that the efficiency of bandwidth usage is increased. We present simulation results that demonstrate the effectiveness of TCP-ELSA in various scenarios.
Original language | English (US) |
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Pages | 2026-2030 |
Number of pages | 5 |
State | Published - 2002 |
Event | GLOBECOM'02 - IEEE Global Telecommunications Conference - Taipei, Taiwan, Province of China Duration: Nov 17 2002 → Nov 21 2002 |
Other
Other | GLOBECOM'02 - IEEE Global Telecommunications Conference |
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Country/Territory | Taiwan, Province of China |
City | Taipei |
Period | 11/17/02 → 11/21/02 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Global and Planetary Change