A Novel OFDMA Cellular System Based on Multiple FrFT Angles Reuse Scheme

被引:0
作者
Huiqi Wang
Wangyong Lv
Wensimi Bai
Hong Ma
机构
[1] Sichuan University,College of Mathematics
[2] Sichuan Normal University,College of Mathematics and Software Science
来源
Wireless Personal Communications | 2012年 / 66卷
关键词
OFDMA; FrFT; Inter-cell interference; Angle resource allocation;
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中图分类号
学科分类号
摘要
In conventional Orthogonal Frequency Division Multiple Access (OFDMA) cellular systems, the fundamental cause of inter-cell interference (ICI) is that the signals from serving Base Station (BS) and interference BSs, are modulated by same exponential bases, at same subcarrier. In this letter, an effective OFDMA cellular mobile system based on multiple fractional Fourier transform (FrFT) angle reuse scheme is proposed. In this system, FrFT angle is regarded as new resource, which can be optimally allocated to each BS of cellular system. Because chirp bases, generated by different FrFT with optimally allocated angle, are mutually approximately orthogonal at same subcarrier, ICI can be perfectly suppressed. Both theory and simulations show the essential advantages over conventional OFDMA cellular systems for ICI suppression and bit error rate.
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页码:707 / 716
页数:9
相关论文
共 18 条
[1]  
Lin J.-M.(2009)A high performance baseband transceiver for SISO/MIMO-OFDA uplink communications IEEE Transactions on Wireless Communications 8 3330-3334
[2]  
Ma H.-P.(2006)Downlink beamforming algorithms with inter-cell interference in cellular networks IEEE Transactions on Wireless Communications 5 2814-2823
[3]  
Ren T.(2006)The OFDM system based on the fractional fourier transform ICICIC’06 3 14-17
[4]  
La R. J.(2010)MIMO OFDM systems based on the optimal fractional fourier transform Wireless Personal Communications 55 265-272
[5]  
Chen E.(2006)Signal compression using discrete fractional Fourier transform and set partitioning in hierarchical tree Signal Processing 86 1976-1983
[6]  
Tao R.(2010)Fractional fourier transform, wigner distribution, and filter design for stationary and nonstationary random processes IEEE Transactions on Signal Processing 58 4079-4092
[7]  
Meng X.(2010)Short-time fractional fourier transform and its applications IEEE Transactions on Signal Processing 58 2568-2580
[8]  
Wang H.(2009)Interference analysis of multicarrier systems based on affine fourier transform IEEE Transactions on Wireless Communications 8 2877-2880
[9]  
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