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Inter-cell interference coordination based on softer frequency reuse in OFDMA cellular systems

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4 Author(s)
Xunyong Zhang ; Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai ; Chen He ; Lingge Jiang ; Jing Xu

In this paper, a novel interference coordination scheme based softer frequency reuse (SerFR) to mitigate inter-cell interference in Orthogonal Frequency Division Multiple Access (OFDMA) cellular systems is presented. In OFDMA systems, inter-cell interference is the most important interference source. Inter-cell interference coordination is considered to improve coverage and increase date rate at cell edge. Soft Frequency Reuse (SFR) interference coordination scheme is proposed in 3GPP Long Term Evolution (LTE). But the scheme cause frequency selective scheduling gain loss, and the peak rate for cell edge users is low because the cell edge users only can use a fraction of the entire frequency band. However, in SerFR scheme, cell edge users can use the entire frequency band, so there are more frequency selective scheduling garn and more peak date rate than SFR scheme.

Published in:

Neural Networks and Signal Processing, 2008 International Conference on

Date of Conference:

7-11 June 2008