Angle-of-departure-aided opportunistic space-division multiple access for MIMO applications

Authors:
Ghassan S. Dahman;Roshdy H. M. Hafez;Robert J. C. Bultitude
Affiliations:
Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada;Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada;Communications Research Centre, Ottawa, Canada
Venue:
IEEE Transactions on Wireless Communications
Year:
2010

Citing 7
Cited 0

Opportunistic beamforming based on multiple weighting vectors

IEEE Transactions on Wireless Communications
The COST 259 Directional Channel Model-Part II: Macrocells

IEEE Transactions on Wireless Communications
Opportunistic beamforming using dumb antennas

IEEE Transactions on Information Theory
On the capacity of MIMO broadcast channels with partial side information

IEEE Transactions on Information Theory
Statistical characterization of urban spatial radio channels

IEEE Journal on Selected Areas in Communications
A stochastic multipath channel model including path directions for indoor environments

IEEE Journal on Selected Areas in Communications
A new statistical wideband spatio-temporal channel model for 5-GHz band WLAN systems

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.01

Visualization

Abstract

This paper introduces a novel transmission technique for MIMO broadcasting directional channels, herein called the Angle-of-Departure-Aided Opportunistic Space-Division Multiple Access (AOD-OSDMA) technique. In AOD-OSDMA, the knowledge of angles-of-departure (AODs) at the BS of the strongest signal received by each user is used to design multiple opportunistic beams so that advantage is made of the clustering nature of wireless channels. Compared to the OSDMA-S using 4 × 2 (8 × 2) MIMO system, the proposed technique provides gains in system capacity of up to 50% (160%), and reduces the number of channel directional feedback bits by 33% (55%), when evaluated using MIMO directional channel model such as WINNER.