Diversity and Multiplexing Tradeoffs

MIMO system can provide two types of gains: diversity gain and spatial multiplexing gain. This research focuses on analytical investigation of the performance of a system with multiple-element antenna in terms of BER, outage probability, received SNR statistics, and throughput. Currently, the trade-off between beamforming and diversity techniques is being investigated and the impact of multiple antennas on system level performance such as system capacity and coverage is under investigation.

References 

[1] Kyung K. Bae, Annamalai Annamalai, and William H. Tranter, “Multi-Branch predetection equal gain combiner performance in equally correlated Nakagami-m fading channels,” submitted to Globecom 2004.

[2] Kyung K. Bae, Jong-Han Kim, Annamalai Annamalai, William H. Tranter, and Jeffrey H. Reed, “Analytical analysis of the impact of transmit diversity at handset on the system capacity of the reverse link DS/CDMA,” submitted to Globecom 2004.

[3] Kyung K. Bae, Annamalai Annamalai, and William H. Tranter, “Outage probability of wireless systems with interference nulling on independent but non-identically distributed dominant interferences,” submitted to VTC 2004.

[4] Kyung K. Bae, Jing Jiang, and William H. Tranter, Downlink WCDMA performance analysis with diversity techniques combined with beamforming,” IEEE WCNC 2003, New Orleans, LA, March 17th–20th , 2003

[5] Kyung K. Bae, Jing Jiang, William H. Tranter, Jian He, Alex Verstak, Layne T. Watson, Naren Ramakrishnan, Chris R. Anderson, Theodore S. Rappaport, Cliff A. Shaffer, "WCDMA STTD performance analysis with transmitter location optimization in indoor systems using ray-tracing technique," IEEE RAWCON 2002, Boston, MA, August 2002.