An Efficient Scheme for Transmit Antenna Diversity with Limited Feedback Channel Rate

Seung Hoon SHIN  Bong Kwan CHO  Hyeon Chyeol HWANG  Kyung Sup KWAK  

IEICE TRANSACTIONS on Communications   Vol.E88-B   No.8   pp.3471-3474
Publication Date: 2005/08/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.8.3471
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
transmit diversity,  multiple antennas,  feedback,  

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In this letter, we propose an efficient closed-loop transmit (Tx) diversity scheme that works well for high mobility as well as low mobility. The proposed scheme exploits a quantized weight vector codebook designed by separating it into gain and phase codebooks. Simulation results reveal that the proposed scheme can provide a significant advantage in both complexity and flexibility over conventional methods.