Random Beamforming Using Iterative Power Allocation with Small Feedback Information and Low Latency

Yuki TSUCHIYA  Tomoaki OHTSUKI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.5   pp.1908-1911
Publication Date: 2009/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.1908
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
random beamforming,  multiuser diversity,  power allocation,  AMC,  

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Summary: 
In this letter, we propose a new power allocation scheme for random unitary beamforming assuming a discrete transmission rate with a small amount of feedback information and low latency. Simulation results show that the proposed scheme can improve throughput compared to the conventional power allocation scheme.