Hybrid link adaptive algorithms for wpan/wlan applications

Qian Xiaoyong; Shen Lianfeng; Hu Jing; Xu Guojun; Xu Pingping

Volume 25 Issue 4

Apr. 2003

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Article Navigation > Journal of Electronics & Information Technology > 2003 > 25(4): 509-514

Qian Xiaoyong, Shen Lianfeng, Hu Jing, Xu Guojun, Xu Pingping . Hybrid link adaptive algorithms for wpan/wlan applications[J]. Journal of Electronics & Information Technology, 2003, 25(4): 509-514.

Citation:

Qian Xiaoyong, Shen Lianfeng, Hu Jing, Xu Guojun, Xu Pingping . Hybrid link adaptive algorithms for wpan/wlan applications[J]. Journal of Electronics & Information Technology, 2003, 25(4): 509-514.

Qian Xiaoyong, Shen Lianfeng, Hu Jing, Xu Guojun, Xu Pingping . Hybrid link adaptive algorithms for wpan/wlan applications[J]. Journal of Electronics & Information Technology, 2003, 25(4): 509-514.

Citation:

Qian Xiaoyong, Shen Lianfeng, Hu Jing, Xu Guojun, Xu Pingping . Hybrid link adaptive algorithms for wpan/wlan applications[J]. Journal of Electronics & Information Technology, 2003, 25(4): 509-514.

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Hybrid link adaptive algorithms for wpan/wlan applications

Received Date: 2001-11-05
Rev Recd Date: 2002-06-20
Publish Date: 2003-04-19

Abstract

Abstract

In this paper, the characteristics of two link adaptive algorithms based on Carrier to Interference ratio (C/I) and Packet Error Rate (PER) are discussed. Furthermore, two hybrid algorithms of link adaptation are proposed on the analysis of the existing algorithms. One is named integrated hybrid method, in which PER and C/I are taken as the estimates of channel quality simultaneously. The other that selectively considers C/I or PER as the estimates of channel quality at a time is called selective hybrid method. Simulation results indicate that the integrated hybrid method can achieve the maximum throughputs at an ideal uni-user scenario. While at a multi-user scenario, a few received packets of one user lead to the large variance of PER values, which results in throughput loss. Therefore, at the scenario above, selective hybrid method is superior to other methods in term of network throughputs.

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References(1)

References

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