A Channel-Adaptive Beamforming Method for OFDMA Systems in Frequency-Selective Channels

Seung Hee HAN  Mi Hyun LEE  Yong Soo CHO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.12   pp.4671-4674
Publication Date: 2005/12/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.12.4671
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMA,  smart antennas,  channel-adaptive,  frequency selectivity,  region-splitting,  

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Summary: 
In this letter, a new channel-adaptive beamforming method is proposed for OFDMA systems with smart antennas. In the method, the size of a cluster for resource unit is determined adaptively according to a region-splitting criterion. It is shown by simulations that the proposed method shows good performance in both frequency-flat and frequency-selective channels.