How does correlation affect the capacity of MIMO systems with rate constraints?

Authors:
Hao Wang;Peng Wang;Li Ping;Xiaokang Lin
Affiliations:
Tsinghua University, Beijing, P. R. China;City University of Hong Kong, Hong Kong SAR, P. R. China;City University of Hong Kong, Hong Kong SAR, P. R. China;Tsinghua University, Beijing, P. R. China
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

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Abstract

In this paper, we study the impact of antenna correlation at mobile units (MUs) on the capacity of multi-user multiple-input multiple-output (MIMO) systems with rate constraints. Both numerical results and asymptotic analyses show that antenna correlation can actually be regarded as a beneficial factor for such systems. It is also shown that the maximum eigenmode beamforming (MEB) based interleave-division multiple-access (IDMA) system is an effective platform to exploit the potential gain provided by antenna correlation at MUs.