Statistical analysis of inter-cell interference in uplink OFDMA networks with soft frequency reuse

被引:2
作者
Zhu, Yuanping [1 ,3 ]
Xu, Jing [1 ,2 ]
Wang, Jiang [1 ,2 ]
Yang, Yang [1 ,2 ]
机构
[1] Chinese Acad Sci, SIMIT, Key Lab Wireless Sensor Network & Commun, Shanghai 200050, Peoples R China
[2] Shanghai Res Ctr Wireless Commun WiCO, Shanghai 200335, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源
EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2013年
关键词
2ND-ORDER STATISTICS; SINR; SIR;
D O I
10.1186/1687-6180-2013-96
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
As the inter-cell interference becomes a great challenge in frequency reuse one systems, soft frequency reuse (SFR) has been widely used to deal with the severe inter-cell interference especially for cell edge users. This paper proposes an analytical method to investigate the statistics of inter-cell interference in uplink orthogonal frequency division multiple access systems when SFR scheme is adopted. Probability density functions of inter-cell interference in different frequency bands are derived and then used to deduce the expectation and variance of inter-cell interference from multiple interfering cells. The derivations are validated through numerical results. In addition, the relationship between system parameters and the statistics of inter-cell interference in different frequency bands is investigated. These contributions will give insights and guidelines for the system optimization.
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页数:12
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