• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Outage Probability Analysis of Multiuser MISO Systems Exploiting Joint Spatial Diversity and Multiuser Diversity with Outdated Feedback


Abstract

In this paper, the outage performance of multiuser multiple-input single-output (MISO) systems exploiting joint spatial and multiuser diversities is investigated for Rayleigh fading channels with outdated feedback. First, we derive closed-form exact outage probabilities for the joint diversity schemes that combine user scheduling with different spatial diversity techniques, including: 1) transmit maximum-ratio combining (TMRC); 2) transmit antenna selection (TAS); and 3) orthogonal space-time block coding (OSTBC). Then the asymptotic outage probabilities are analyzed to gain more insights into the effect of feedback delay. It is observed that with outdated feedback, the asymptotic diversity order of the multiuser OSTBC (M-OSTBC) scheme is equal to the number of transmit antennas at the base station, while that of the multiuser TMRC (M-TMRC) and the multiuser TAS (M-TAS) schemes reduce to one. Further by comparing the asymptotic outage probabilities, it is found that the M-TMRC scheme outperforms the M-TAS scheme, and the M-OSTBC scheme can perform best in the outage regime of practical interest when the feedback delay is large. Theoretical analysis is verified by simulation results.


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Cite this article

[IEEE Style]
C. Diao, W. Xu, M. Chen and B. Wu, "Outage Probability Analysis of Multiuser MISO Systems Exploiting Joint Spatial Diversity and Multiuser Diversity with Outdated Feedback," KSII Transactions on Internet and Information Systems, vol. 5, no. 9, pp. 1573-1595, 2011. DOI: 10.3837/tiis.2011.09.005.

[ACM Style]
Chunjuan Diao, Wei Xu, Ming Chen, and Bingyang Wu. 2011. Outage Probability Analysis of Multiuser MISO Systems Exploiting Joint Spatial Diversity and Multiuser Diversity with Outdated Feedback. KSII Transactions on Internet and Information Systems, 5, 9, (2011), 1573-1595. DOI: 10.3837/tiis.2011.09.005.

[BibTeX Style]
@article{tiis:20000, title="Outage Probability Analysis of Multiuser MISO Systems Exploiting Joint Spatial Diversity and Multiuser Diversity with Outdated Feedback", author="Chunjuan Diao and Wei Xu and Ming Chen and Bingyang Wu and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2011.09.005}, volume={5}, number={9}, year="2011", month={September}, pages={1573-1595}}