Welcome to Journal of University of Chinese Academy of Sciences,Today is

›› 2009, Vol. 26 ›› Issue (3): 419-425.DOI: 10.7523/j.issn.2095-6134.2009.3.018

• Brief Report • Previous Articles     Next Articles

Adaptive resource allocation algorithm for multiuser MIMO-OFDM systems with zero-forcing beamformer

SHU Jin, WEI Guo   

  1. Wireless Information Network Laboratory, University of Science and Technology of China, Hefei 230027, China
  • Received:2008-05-07 Revised:2008-11-04 Online:2009-05-15

Abstract:

Two effective allocation schemes are proposed for Multiuser MIMO-OFDM systems with zero-forcing beamforming. Through adaptive power,subacarrier and bit allocation, our objective is to minimize the total transmit power while satisfying the target data rates of all users. The numerical results show that the two proposed sub-optimal methods can achieve good performance while satisfying the rate demand of users.

Key words: MIMO-OFDM, adaptive resource allocation, transmit power

CLC Number: