Research Article Open Access

Performance Analysis of Multi-user Multi Input Multi Output- Interleave-Division Multiple-Access System Employing Turbo Coding with Multi-User Detection over Frequency-Selective Wireless Communication Channel

Kuttathatti Srinivasan Vishvaksenan, R. Seshasayanan and Yuvaraj Krishnamoorthy

Abstract

Problem statement: This study presents the performance analysis of multi-user Multi Input Multi Output (MIMO) assisted interleave based multiple-access system. In IDMA, different interleavers are used to distinguish users as against different signature sequence in a conventional code-Division Multiple-Access (CDMA) scheme. Approach: The basic principle of IDMA is that the interleaver is unique for the users. Results: In this study, we consider that Interleavers are generated independently and randomly. Also the IDMA technique is extended to multi user MIMO IDMA with multi-user detection. At the receiver, OSIC detector is realized using ZF for frequency fading channel to combat MAI and MUI problem. The performance of the system is analyzed for different channel conditions using extensive simulation runs based on Monte Carlo simulation trials. Conclusion: It is shown that the IDMA scheme can achieve near single user performance in situations with very large numbers of users while maintaining very low receiver complexity. It is discerned from the computer simulation results that IDMA outperforms CDMA in frequency selective channel for high load conditions.

Journal of Computer Science
Volume 7 No. 2, 2011, 284-290

DOI: https://doi.org/10.3844/jcssp.2011.284.290

Submitted On: 26 January 2011 Published On: 25 February 2011

How to Cite: Vishvaksenan, K. S., Seshasayanan, R. & Krishnamoorthy, Y. (2011). Performance Analysis of Multi-user Multi Input Multi Output- Interleave-Division Multiple-Access System Employing Turbo Coding with Multi-User Detection over Frequency-Selective Wireless Communication Channel. Journal of Computer Science, 7(2), 284-290. https://doi.org/10.3844/jcssp.2011.284.290

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Keywords

  • Multiple Antenna
  • Code Division Multiple Access (CDMA)
  • International Telecommunication Union (ITU)
  • channel model
  • channel capacity
  • iterative decoding
  • Multi-User Detection (MUD)
  • Likelihood Ratio (LLR)