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Improvement of Adaptive Modulation System with Optimal Turbo Coded V-BLAST Technique

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Abstract

In this paper, we propose and analyze the Adaptive Modulation System with optimal Turbo Coded V-BLAST (Vertical-Bell-lab Layered Space-Time) technique that adopts the extrinsic information from MAP (Maximum A Posteriori) Decoder with Iterative Decoding as a priori probability in two decoding procedures of a V-BLAST scheme; the ordering and the slicing. Also, comparing with the Adaptive Modulation System using conventional Turbo Coded V-BLAST technique that is simply combined a V-BLAST scheme with a Turbo Coding scheme, we observe how much throughput performance can be improved. As a result of a simulation, it has been proved that the proposed system achieves a higher throughput performance than the conventional system in the whole SNR (Signal to Noise Ratio) range. Specifically, the result shows that the maximum throughput improvement is about 350 kbps.

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Authors and Affiliations

  1. Dept. of Computer Engineering, Chonnam National University 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Korea

    Kyunghwan Lee & Kwangwook Choi

  2. Dept. of Electronics Engineering, Chonnam National University 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Korea

    Sangjin Ryoo & Kyoungwon Lee

  3. Dept. of Information Science & Telecommunication, Hanshin University 411 Yangsan-dong, Osan, Kyongggi-do, 447-791, Korea

    Mingoo Kang

  4. Dept. of Electronics & Computer Engineering, Chonnam National University 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Korea

    Intae Hwang, Taejin Jung, Daejin Kim & Cheolsung Kim

Authors
  1. Kyunghwan Lee

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  2. Kwangwook Choi

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  3. Sangjin Ryoo

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  4. Kyoungwon Lee

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  5. Mingoo Kang

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  6. Intae Hwang

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  7. Taejin Jung

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  8. Daejin Kim

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  9. Cheolsung Kim

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Editor information

Marcin S. Szczuka Daniel Howard Dominik Ślȩzak Haeng-kon Kim Tai-hoon Kim Il-seok Ko Geuk Lee Peter M. A. Sloot

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© 2007 Springer-Verlag Berlin Heidelberg

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Lee, K.et al. (2007). Improvement of Adaptive Modulation System with Optimal Turbo Coded V-BLAST Technique. In: Szczuka, M.S.,et al. Advances in Hybrid Information Technology. ICHIT 2006. Lecture Notes in Computer Science(), vol 4413. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77368-9_55

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