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Proportional Resource Allocation in OFDMA Systems Based on Weighted Normalized User's CSI
Jae Moung KIM
IEICE TRANSACTIONS on Communications Vol.E95-B No.6 pp.2137-2140
Publication Date: 2012/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Full Text: PDF(380.5KB)
We formulate the resource allocation problem to maximize the sum rate, subject to constraints on total power, bit error rate, and rate proportionality among the users for proportional resource allocation in orthogonal frequency division multiple access (OFDMA) systems. For this we propose a novel scheduling scheme based on weighted normalized user's channel state information (CSI). We then adopt the linear power distribution method and waterfilling technique to allocate power among the users and across the subcarriers respectively.