ST-OFDM载波间干扰线性均衡技术

Linear Equalization of Suppression Inter-carrier Interference in ST-OFDM Systems

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摘要分析了频率非选择性衰落信道下ST-OFDM系统载波间干扰的具体内容,利用连续发射已知ST-OFDM符号来估计ST-OFDM中各个子载波对其他子载波的干扰,然后通过特定的线性均衡方法达到ST-OFDM载波间干扰的抑制。在莱斯衰落信道下的仿真结果表明,选择6个相邻子载波12个干扰系数的均衡技术ST-OFDM系统可获得至少10dB的信干比增益,可以使ST-OFDM系统在性能和运算量上获得最佳。 Those are studied that Inter-Carrier Interference（ICI） over un-frequency-selective fading channel and a linear equalization of suppressing ICI in ST-OFDM system. A Topelitz matrix is computed to get ICI co efficiencies in ST-OFDM, and then the results are used in the linear equalization to suppress ICI, Simultaneously a linear equalization of employing partial ICI co efficiencies is studied to provide gain in complexity and performance. Simulations indicate the linear equalization provides a gain of lOdB at least by employing 12 ICI co efficiencies over rician channel. The partial linear equalization is more efficiency than all ICI equalization.

作者苗睿锋王永生姚如贵

机构地区西北工业大学电子信息学院

出处《计算机应用研究》 CSCD 北大核心 2006年第1期164-167,共4页 Application Research of Computers

基金国防"973"基金资助项目(51308)

关键词 ST-OFDM ICI SIR 频率偏移系数线性均衡 Space Time-Orthogonal Frequency Division Multiplex（ST-OFDM） Inter-Carrier Interference（ICI） Signal Interference Ratio（SIR） Co Efficiency of Frequency Offset Linear Equalization

分类号 TN973.3 [电子电信—信号与信息处理]

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参考文献8

1Yuping Zhao, Sven-Gustav Haggman. Intercarrier Interference Self-Cancellation Scheme for OFDM Mobile Communication Systems [J].IEEE Trans. on Comm,2001,49(7):1185-1191.
2Jean Armstrong. Analysis of New and Existing Methods of Reducing Intercarrier Interference Due to Carrier Frequency Offset in OFDM[ J ]. IEEE Trans. on Comm, 1999,47(3): 365-369.
3Jean Armstrong,et al. Polynominal Cancellation Coding of OFDM to Reduce Intercarrier Interference Due to Doppler Spread [ C ]. IEEE Global Telecommunications Conference 1998. 2771-2776.
4Suhas Diggavi, Naofal Al-Dhahir, Anastasios Stamoulis, Intercarrier Interference in MIMO OFDM[C]. IEEE International Conference on Communications, 2002. 485-489.
5Yuping Zhao, Jean-Damien Leclercq, et al. Intercarrier Interference Compression in OFDM Communication Systems by Using Correlative Coding[J]. IEEE Trans. on Comm,1998,2(8):214-216.
6V Tarokh, H Jafarkani, et al. Space-time Block Coding for Wireless Communications Performance and Result [ J ]. IEEE Journal on Selected Areas on Communications, 1999, 17(3):451 - 459.
7L J Cimini, Jr, N R Sollenberger. OFDM with Diversity and Coding for High Bit-rate Mobile Data Applications[C]. Proc. the 3rd Int. Workshop on Mobile Muhimedia Communications, 1996.
8汪安春,王艺,许希斌,姚彦.OFDM载波间干扰的线性抑制技术[J].清华大学学报（自然科学版）,2003,43(1):59-62. 被引量：1

二级参考文献6

1Li Y,Cimini L J. Bounds on the interchannel interference of OFDM in time-varying impairments [J]. IEEE Trans on Comm,2001,49(3): 401-404.
2Zhao Y,Haggman S G. Intercarrier interference self-cancellation scheme for OFDM mobile communication systems [J]. IEEE Trans on Comm,2001,49(7): 1185-1191.
3Armstrong J. Analysis of new and existing methods of reducing intercarrier interference due to carrier frequency offset in OFDM [J]. IEEE Trans on Comm,1999,47(3): 365-369.
4Moose P H. A technique for orthogonal frequency division multiplexing frequency offset correction [J]. IEEE Trans on Comm,1994,42(10): 2008-2914.
5Muschalik C,Improving an OFDM reception using an adaptive Nyquist windowing [J]. IEEE Trans on Consumer Electronics,1996,42(3): 259-269.
6Celebi S. Interblock interference (IBI) and time of reference (TOR) computation in OFDM Systems [J]. IEEE Trans on Comm,2001,49(11): 1895-1900.

1苗睿锋,王永生.ST-OFDM系统载波干扰抑制技术研究[J].微计算机应用,2005,26(4):393-397.
2苗睿锋,王永生,王宇.分组衰落信道下OFDM系统载波干扰线性均衡技术研究[J].无线通信技术,2006,15(2):23-27.
3蒋鸿.短波信道均衡中的线性均衡方法研究[J].舰船电子工程,2013,33(8):85-87.
4黄学军,余松煜,毕厚杰.空时编码的OFDM盲信道估计[J].上海交通大学学报,2007,41(4):653-653.
5胡洁,冯穗力,卢丹松.基于干扰避免的联合功率控制中继选择策略[J].华南理工大学学报（自然科学版）,2011,39(12):20-24.
6邹黎,赵玉萍,王兵,梁庆林.ST-OFDM系统中的载波频率偏差估计算法[J].北京大学学报（自然科学版）,2004,40(1):91-98.
7航空百科 16机载连续波雷达[J].航空世界,2010(11):78-78.
8JUMei-yan ZHUQi FENGGuang-zeng.The Research of ST-OFDM in Physical Layer of IEEE 802.16a[J].The Journal of China Universities of Posts and Telecommunications,2004,11(4):7-14.
9居美艳,朱琦,酆广增.IEEE802.16a协议物理层ST-OFDM的研究[J].南京邮电学院学报（自然科学版）,2004,24(2):47-52.
10张博,庄奕琪,徐飞.多径衰落信道环境中基于空时码构建的ST-OFDM系统[J].数据采集与处理,2008,23(B09):119-122.

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ST-OFDM载波间干扰线性均衡技术

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