Sum-rate analysis of spectrum sharing spatial multiplexing MIMO systems with zero-forcing and multiuser diversity

Author

Liang Yang ; Qaraqe, Khalid ; Serpedin, Erchin ; Alouini, Mohamed-Slim

Author_Institution

Dept. of EE, Guangdong Univ. of Technol., Guangzhou, China

fYear

2013

fDate

16-19 June 2013

Firstpage

585

Lastpage

589

Abstract

This paper considers a multiuser spectrum sharing (SS) multiple-input multiple-output (MIMO) system with zero-forcing (ZF) operating in a Rayleigh fading environment. We provide an asymptotic sum-rate analysis to investigate the effects of different parameters on the multiuser diversity gain. For a ZF SS spatial multiplexing system with scheduling, the asymptotic sum-rate scales like N_t log₂(Q(^{Nt Np}√K - 1)/N_t), where N_p denotes the number of antennas of primary receiver, Q is the interference temperature, and K represents the number of secondary transmitters.

Keywords

MIMO communication; Rayleigh channels; antenna arrays; cognitive radio; diversity reception; multiuser channels; radio receivers; radio spectrum management; radio transmitters; radiofrequency interference; space division multiplexing; Rayleigh fading environment; ZF SS spatial multiplexing system; asymptotic sum-rate analysis; interference temperature; multiuser diversity gain; multiuser spectrum sharing spatial multiplexing MIMO systems; number-of-antennas; number-of-secondary transmitters; primary receiver; zero-forcing; Cognitive radio; Interference; MIMO; Multiplexing; Radio transmitters; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2013 IEEE 14th Workshop on

Conference_Location

Darmstadt

ISSN

1948-3244

Type

conf

DOI

10.1109/SPAWC.2013.6612117

Filename

6612117