• Journal of Internet Computing and Services
    ISSN 2287 - 1136(Online) / ISSN 1598 - 0170 (Print)
    http://jics.or.kr/

Performance Improvement of the Combined AMC-MIMO Systems with Independent MCS Level Selection Method


In-Tae Hwang, Kwang-Wook Choi, Sang-Jin Ryoo, Kyung-Hwan Lee, Cheol-Woo You, Dae-Ki Hong, Min-Goo Kang, Cheol-Sung Kim, Journal of Internet Computing and Services, Vol. 8, No. 1, pp. 47-56, Feb. 2007
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Keywords: AMC, V-BLAST, MIMO, MCS

Abstract

In this paper, we propose and observe a system that adopts Common-MCS (Modulation and Coding Scheme) level over all layer and Independent-MCS level for each layer in the combined AMC-V-BLAST (Adaptive Modulation and Coding-Vertical-Bell-lab Layered Space-Time) system. Also, comparing with the combined system using Common-MCS level, we observe throughput performance improvement in case of Independent-MCS level. As a result of simulation, Independent-MCS level case adapts modulation and coding scheme for maximum throughput to each channel condition in separate layer, resulting in improved throughput compared to Common-MCS level case. Especially, the results show that the combined AMC-V-BLAST system with Independent-MCS level achieves a gain of 700kbps in $7{\sim}9dB$ SNR (Signal-to-Noise Ratio) range against using Common-MCS level. In addition, the combined AMC-V-BLAST system using MMSEnulling method with receive diversity is verified that the difference of throughput between Independent MCS level system and common MCS level system in $7dB{\sim}9dB$ SNR is about 350kbps more or less.


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Cite this article
[APA Style]
In-Tae Hwang, Kwang-Wook Choi, Sang-Jin Ryoo, Kyung-Hwan Lee, Cheol-Woo You, Dae-Ki Hong, Min-Goo Kang, & Cheol-Sung Kim (2007). Performance Improvement of the Combined AMC-MIMO Systems with Independent MCS Level Selection Method. Journal of Internet Computing and Services, 8(1), 47-56.

[IEEE Style]
I. Hwang, K. Choi, S. Ryoo, K. Lee, C. You, D. Hong, M. Kang and C. Kim, "Performance Improvement of the Combined AMC-MIMO Systems with Independent MCS Level Selection Method," Journal of Internet Computing and Services, vol. 8, no. 1, pp. 47-56, 2007.

[ACM Style]
In-Tae Hwang, Kwang-Wook Choi, Sang-Jin Ryoo, Kyung-Hwan Lee, Cheol-Woo You, Dae-Ki Hong, Min-Goo Kang, and Cheol-Sung Kim. 2007. Performance Improvement of the Combined AMC-MIMO Systems with Independent MCS Level Selection Method. Journal of Internet Computing and Services, 8, 1, (2007), 47-56.