Performance bound on ergodic capacity of MIMO beam-forming in indoor multi-path channels

Authors:
Navid Lashkarian;Karim Nassiri-Toussi;Payman Jula;Sayfe Kiaei
Affiliations:
Broadcom Inc., Sunnyvale, CA;Sibeam Inc., Sunnyvale, CA;Simon Fraser University, Burnaby, BC, Canada;Department of Electrical Engineering, Arizona State University, Tempe, AZ
Venue:
IEEE Transactions on Communications
Year:
2010

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Abstract

This paper aims to characterize the ergodic capacity of multiple input multiple output (MIMO) antenna beam-forming in indoor multi-path propagation environments. Using Double-Directional Cluster-Ray (DDCR) channel models, the second order statistics of the strongest eigen-mode of the channel is analyzed. An upper bound on the ergodic capacity of the MIMO beam-forming is derived and the impact of channel propagation parameters, such as cluster/ray arrival rates and power decay profiles, on this upper bound is investigated. The theoretical results are subsequently applied to estimate the capacity of the next generation very high throughput WLAN at the 60 GHz frequency band.