Improved adaptive modulation and coding of MIMO with selection transmit diversity systems

  • Authors:

  • Young-hwan You;Min-goo Kang;Ou-seb Lee;Seung-il Sonh;Tae-won Jang;Hyoung-kyu Song;Dong-oh Kim;Hwa-seop Lim

  • Affiliations:

  • uT Communication Research Institute, Sejong University, Seoul, Korea;Dept. of Inform. & Telecomm., Hanshin University, Kyongggi-do, Korea;Dept. of Inform. & Telecomm., Hanshin University, Kyongggi-do, Korea;Dept. of Inform. & Telecomm., Hanshin University, Kyongggi-do, Korea;Dept. of Inform. & Telecomm., Hanshin University, Kyongggi-do, Korea;uT Communication Research Institute, Sejong University, Seoul, Korea;Kaon Media Co. Ltd., Sungnam City, Kyunggi-Do, Korea;Kaon Media Co. Ltd., Sungnam City, Kyunggi-Do, Korea

  • Venue:
  • CIS'04 Proceedings of the First international conference on Computational and Information Science
  • Year:
  • 2004

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Abstract

In this paper, Adaptive Modulation and Coding (AMC) is combined with Multiple Input Multiple Output (MIMO) multiplexing to improve the throughput performance of AMC. In addition, a system that adopts Selection Transmit Diversity (STD) in the AMC-MIMO multiplexing system is proposed. The received SNR is improved by adopting STD techniques. And it increases probability of selecting MCS (Modulation and Coding Scheme) level that supports higher data rate. This leads to an increased throughput of the AMC-MIMO multiplexing system. STD in our simulation selects 2 transmission antennas from 4 antennas and AMC-MIMO multiplexing process operates with the selected antennas. The computer simulation is performed in flat Rayleigh fading channel. The results show that the proposed system achieves a gain of 1Mbps over the AMC-MIMO multiplexing system with the same number of antennas at 15dB SNR.