Intra-Cell Partial Spectrum Reuse Scheme for Cellular OFDM-Relay Networks

Tong WU  Ying WANG  Yushan PEI  Gen LI  Ping ZHANG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E93-B   No.9   pp.2462-2464
Publication Date: 2010/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2462
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM-relay,  partial spectrum reuse,  pre-allocation factor,  

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Summary: 
This letter proposes an intra-cell partial spectrum reuse (PSR) scheme for cellular OFDM-relay networks. The proposed method aims to increase the system throughput, while the SINR of the cell edge users can be also promoted by utilizing the PSR scheme. The novel pre-allocation factor γ not only indicates the flexibility of PSR, but also decreases the complexity of the reuse mechanism. Through simulations, the proposed scheme is shown to offer superior performances in terms of system throughput and SINR of last 5% users.