Title :
Achievable rate of MIMO systems with multi-user diversity and delayed feedback
Author_Institution :
Electron. Eng. Dept., Jinan Univ., Guangzhou, China
Abstract :
The effects are investigated of delayed feedback on the system achievable rate (AR) of a multi-user diversity multiple-input multiple-output (MIMO) system over uncorrelated Rayleigh fading channels in a general framework allowing for arbitrary numbers of transmit/receive antennas and various spatial combining schemes. Exact AR expressions are derived for different MIMO schemes, including the selective combining, maximum ratio combining and space-time block codes. Numerical results are presented to examine the validity of the theory.
Keywords :
MIMO communication; Rayleigh channels; diversity reception; feedback; MIMO system; delayed feedback; multiple-input multiple-output system; multiuser diversity; spatial combining scheme; transmit-receive antennas; uncorrelated Rayleigh fading channel;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1333
