Outage probability of multiuser transmit antenna selection/maximal-ratio combining systems over arbitrary Nakagami-m fading channels

C.-C. Hung; C.-T. Chiang; N.-Y. Yen; R.-C. Wu

Outage probability of multiuser transmit antenna selection/maximal-ratio combining systems over arbitrary Nakagami-m fading channels

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Outage probability of multiuser transmit antenna selection/maximal-ratio combining systems over arbitrary Nakagami-m fading channels

Author(s): C.-C. Hung ; C.-T. Chiang ; N.-Y. Yen ; R.-C. Wu
DOI: 10.1049/iet-com.2009.0105

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Author(s): C.-C. Hung ¹ ; C.-T. Chiang ² ; N.-Y. Yen ² ; R.-C. Wu ¹
- Affiliations: 1: Department of Electrical Engineering, University of I-Shou, Kaohsiung County, Taiwan
  2: Department of Computer and Communication, National Pingtung Institute of Commerce, Pingtung, Taiwan
Source: Volume 4, Issue 1, 5 January 2010, p. 63 – 68
DOI: 10.1049/iet-com.2009.0105 , Print ISSN 1751-8628, Online ISSN 1751-8636

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The outage probability of multiuser diversity (MUD) in transmit antenna selection/maximal-ratio combining (TAS/MRC) systems is derived as an exact closed expression in independent and identically distributed (i.i.d.) Nakagami-m channels with an integer fading parameter. For a non-integer fading parameter, the exact outage probability is derived as a single infinite series of incomplete Gamma function. At high signal-to-noise ratios (SNRs), the analytical results deduce that the multiuser TAS/MRC systems can achieve a full diversity order equal to the product of the fading parameter, number of users, number of transmit antennas and number of receive antennas. The advantage of the total diversity gain becomes more pronounced on a severe fading channel. The achieved results provide an analytical framework for the assessment of multiuser TAS/MRC systems. All the derived expressions are verified by Monte Carlo simulations.

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Outage probability of multiuser transmit antenna selection/maximal-ratio combining systems over arbitrary Nakagami-m fading channels

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