Spatial Multiplexing with Opportunistic Multiuser Scheduling in Ad Hoc Networks

Author

Xianling Wang ; Jian Geng ; Xin Zhang ; Dacheng Yang

Author_Institution

Wireless Theor. & Technol. (WT&T) Lab., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2012

fDate

3-6 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

In this paper, we investigate the performance of multiuser scheduling with open-loop spatial multiplexing in ad hoc networks. Closed-form expressions for outage probability and spatial throughput are derived for spatial multiplexing transmission with zero forcing (ZF) receiver and multiuser scheduling. Monte Carlo simulation results reveal that these expressions accurately demonstrate the performance of multiuser scheduling with open-loop spatial multiplexing. Based on these expressions, transmission capacity performance is analyzed and the effects of system parameters over network performance metrics are studied. Our finding indicates that spatial multiplexing with opportunistic multiuser scheduling can provide boosted network performance for ad hoc network by exploiting multiuser diversity gain, whilst requiring very low feedback requirements.

Keywords

Monte Carlo methods; ad hoc networks; diversity reception; scheduling; space division multiplexing; Monte Carlo simulation; ZF receiver; ad hoc networks; closed-form expressions; multiuser diversity gain; network performance metrics; open-loop spatial multiplexing; opportunistic multiuser scheduling; spatial multiplexing transmission; transmission capacity performance; very low feedback requirements; zero forcing receiver; Ad hoc networks; Interference; Multiplexing; Receivers; Signal to noise ratio; Throughput; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2012 IEEE

Conference_Location

Quebec City, QC

ISSN

1090-3038

Print_ISBN

978-1-4673-1880-8

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VTCFall.2012.6399022

Filename

6399022