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Conference Paper
Improving the Throughput of TCP over TDMA-based Random Access Links Using the delayed ACK
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- Authors
- Nak Woon Sung, Kyungsoo
- Issue Date
- 2007-12
- Citation
- International Conference on Signal Processing and Communication Systems (ICSPCS) 2007, pp.1-5
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we focus on the effect of random access delay of TDMA MAC on the TCP performance over IEEE 802.16 d/e. The random access protocol of IEEE 802.16 d/e is based on orthogonal frequency-division-multiple-access (OFDMA)-codedivision-multiple-access (CDMA) with time-division-duplexing (TDD) mode and increases round-trip-time (RTT) of TCP flows over uplink transmission. And to speed TCP throughput up without revising existing TCP implementations, RTT of wireless portion in the wired-cum-wireless environment among many factors needs to be reduced by the MAC layer. In this paper, we analyze the delay factor of the random access protocol of IEEE 802.16 d/e considering the implementation complexity and show that it is closely related to TCP performance. And we propose the algorithm to minimize that delay factor using the characteristic of TCP delayed ACK which is generally adopted by most of the TCP versions.
- KSP Keywords
- Access Delay, Delayed ACK, IEEE 802.16, Implementation complexity, Mac layer, Many factors, Random access protocol, TCP flows, TCP performance, TCP throughput, TDMA MAC