Title :
Fractional Frequency Reuse in mobile WiMAX
Author :
Chen, Yijie ; Wang, Wenbo ; Li, Tao ; Zhang, Xing ; Peng, Mugen
Author_Institution :
Minist. of Educ., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
The worldwide interoperability for microwave access (WiMAX) can use frequency reuse factor 1 as its network deployment, but it may suffer from serious inter-cell interference (ICI) near the cell edge. Fractional frequency reuse (FFR) is introduced to deal with this problem. In this paper, we investigate the application of Fractional frequency reuse in mobile WiMAX system. Characteristics of frequency resource configurations in the mobile WiMAX system are described and a system model of FFR is presented, then the user partition principle and a combination partition scheme are proposed. Numerical results demonstrate that the proposed scheme has better results with respect to the conventional schemes.
Keywords :
OFDM modulation; WiMax; cellular radio; frequency allocation; frequency division multiple access; open systems; OFDMA; fractional frequency reuse scheme; frequency resource configuration; intercell interference; interoperability; microwave access network; mobile WiMAX system; orthogonal frequency division multiple access; Downlink; Fading; Frequency conversion; Interference; Laboratories; Radio spectrum management; Robustness; Signal processing; WiMAX; Wireless communication; FFR; ICI; Mobile WiMAX; OFDMA;
Conference_Titel :
Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2373-6
Electronic_ISBN :
978-1-4244-2374-3
DOI :
10.1109/CHINACOM.2008.4685020
