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Capacity Enhancing Subcarrier Allocation in OFDM Systems with Fractional Frequency Reuse

Seung Su HAN, Jongho PARK, Tae-Jin LEE, Hyun Gi AHN, Kyunghun JANG

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Summary :

Some wireless OFDMA communication systems support the frequency reuse factor of 1. In order to reduce co-channel interference (CCI) caused by neighbor cells, the fractional frequency reuse (FFR) can be employed. A promising frequency partitioning policy and subcarrier allocation for FFR are essential. In this letter, we employ an efficient frequency partitioning mechanism with less interference and propose an efficient subcarrier allocation algorithm to maximize the sum of users capacity under FFR. We show that the proposed algorithm has higher spectral efficiency than the conventional method as well as significantly high system fairness.

Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.7 pp.2538-2541
Publication Date
2009/07/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E92.B.2538
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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