Interference-Aware Resource Allocation Scheme for Femtocell in OFDMA Systems

Byungchan KWON  Junwoo JUNG  Jaesung LIM  

IEICE TRANSACTIONS on Communications   Vol.E93-B    No.8    pp.2207-2210
Publication Date: 2010/08/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2207
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
OFDM,  femtocell,  resource assignment,  

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In this letter, we propose an interference-aware resource allocation algorithm for the uplink of OFDMA systems. It comprises a macrocell overlaid with short range femtocells. We define the interferences that occur between a macrocell and femtocells and present the resource assignment algorithm to resolve and mitigate the cross-tier interference effect based on the defined interference factors. Simulation results show that the proposed algorithm performs well in a macrocell and femtocells.