Performance of multiuser transmit diversity in spatially correlated channels

Authors:
Haelyong Kim;Namshik Kim;Wan Choi;Hyuncheol Park
Affiliations:
KAIST, Daejeon, Korea;School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA;KAIST, Daejeon, Korea;KAIST, Daejeon, Korea
Venue:
IEEE Communications Letters
Year:
2010

Citing 3
Cited 0

Bit error performance of convolutional coded MIMO system with linear MMSE receiver

IEEE Transactions on Wireless Communications
Error Performance of MIMO-BICM with Zero-Forcing Receivers in Spatially-Correlated Rayleigh Channels

IEEE Transactions on Wireless Communications
Impact of Correlation on the Capacity of Multiple Access and Broadcast Channels with MIMO-MRC

IEEE Transactions on Wireless Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper investigates the performance of an Alamouti coding based transmit diversity scheme with multiuser max-scheduling in spatially correlated channels. An exact closed form of ergodic capacity is derived, and bit error rate (BER) analysis is performed with a log likelihood radio (LLR) approach for two transmit antennas case. Our analytical and numerical results verify a positive effect of spatial correlation on multiuser diversity in terms of ergodic capacity. We show, however, that spatial correlation is beneficial in terms of BER until a certain signal-to-noise ratio (SNR) level while it hurts BER as SNR increases compared with ergodic capacity.