Performance analysis of single and multiuser MIMO diversity channels using Nakagami-m distribution

  • Authors:
  • Kai-Kit Wong

  • Affiliations:
  • Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, China

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2004

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Abstract

This letter studies the diversity advantage of single and multiuser systems utilizing multiple-input multiple-output (MIMO) antennas for known channels at the transmitter and receiver(s) by investigating the overall distribution of the resulting channel. For the single-user case, the resultant channel is taken as the largest singular value of the MIMO channel whereas for the multiuser scenario, the resultant channel is obtained by a recently proposed joint-channel diagonalization. The channel distribution is studied using hypothesis testing with the hypothesis that the distribution follows a Nakagami-m distribution with given parameters. It is concluded from the chi-square goodness-of-fit test that the distribution of the resultant channel for single or multiuser MIMO channel is well matched with a Nakagami-m distribution.