Low-Complexity Resource Allocation Algorithm for Multicell OFDMA System

Qingli ZHAO  Fangjiong CHEN  Sujuan XIONG  Gang WEI  

IEICE TRANSACTIONS on Communications   Vol.E96-B   No.5   pp.1218-1221
Publication Date: 2013/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E96.B.1218
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
resource allocation,  OFDMA,  cellular system,  

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Low-complexity joint subcarrier and power allocation is considered. The applied criterion is to minimize the transmission power while satisfying the users' rate requirements. Subcarrier and power allocation are separately applied. Fixed spectrum efficiency is assumed to simplify the subcarrier allocation. We show that under fixed spectrum efficiency, power allocation can be obtained by solving some sets of linear equations. Simulation result shows the effectiveness of the proposed algorithm.