Channel capacity and outage probability analysis of multiuser diversity MIMO MRC systems with antenna selection in the presence of delayed feedback

Sudakar Singh Chauhan () and Sanjay Kumar
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Sudakar Singh Chauhan: NIT Kurukshetra
Sanjay Kumar: Birla Institute of Technology, Mesra

Telecommunication Systems: Modelling, Analysis, Design and Management, 2017, vol. 64, issue 3, No 10, 559-567

Abstract: Abstract In this paper, we presents an analytical link capacity and outage performance analysis of downlink multiuser diversity (MUD) in multiple-input multiple-output (MIMO) system employing maximal-ratio combining (MRC) with transmit antenna selection (TAS) in the presence of imperfect channel state information (CSI) due to feedback delay over Rayleigh fading channels. The unified achievable analysis is appropriate for MUD–MIMO with TAS/MRC systems in which effective output signal-to-noise ratio (SNR) is specified as highest order statistic of chi-square distribution. Based on this framework, the closed-form channel capacity and outage probability expressions are examined for the MUD–MIMO exploiting TAS/MRC with normalized SNR based scheduling in heterogeneous wireless networks. Further, we derive approximate upper bound capacity as well as capacity at high SNR and low SNR region under delayed feedback CSI. The upper and lower bound of outage probability under delayed feedback CSI is also evaluated. Thereafter the impact of feedback delay and antenna structures with significance on the consideration of MUD on the performance of the system has been analyzed.

Keywords: Channel capacity; Maximal-ratio combining (MRC); Multiuser diversity (MUD); Multiple-input multiple-output (MIMO); Outage probability; Transmit antenna selection (TAS) (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11235-016-0192-0

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