Decision-Directed Beamforming and Channel Equalization Algorithm for IEEE 802.11n OFDM Systems

被引：4
作者：
Wu, Chih-Feng [1 ]
Chen, Chun-Hung [3 ,4 ]
Shiue, Muh-Tian [2 ]
机构：
[1] Natl Penghu Univ Sci & Technol, Dept Commun Engn, Penghu, Taiwan
[2] Natl Cent Univ, Dept Elect Engn, Taoyuan, Taiwan
[3] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei, Taiwan
[4] Natl Taiwan Univ, Dept Elect Engn, Taipei, Taiwan
来源：
2016 INTERNATIONAL SYMPOSIUM ON COMPUTER, CONSUMER AND CONTROL (IS3C) | 2016年
关键词：
D O I：
10.1109/IS3C.2016.66
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this paper, a decision-directed beamforming and channel equalization algorithm is presented for IEEE 802.11n OFDM systems in the presence of co-channel interference (CCI). Based on the minimum mean-square error (MMSE) criterion, the cost function of the proposed algorithm is to minimize the MSE on each subchannel and to improve the system performance. The beamforming compensation is primarily used to suppress CCI. The channel equalization is employed to combat the baseband equivalent channel variations induced by multipath fading channel and adaptation of beamformer. The simulations are done for the multipath frequency-selective fading channel with CCI to demonstrate that the proposed algorithm can effectively eliminate CCI and compensate the channel distortions. Finally, an FEQ design is done by FPGA evaluation.
引用
收藏
页码：220 / 223
页数：4
相关论文
共 10 条
[1]  
[Anonymous], 2009, Standard IEEE 802.11n-2009
[2]  
Asai Y., 2010, IEEE80211100585R3
[3]   Improving throughput and fairness by reducing exposed and hidden nodes in 802.11 networks [J].
Jiang, Li Bin ;
Liew, Soung Chang .
IEEE TRANSACTIONS ON MOBILE COMPUTING, 2008, 7 (01) :34-49
[4]  
Kim CK, 1999, IEEE VTS VEH TECHNOL, P484, DOI 10.1109/VETEC.1999.778102
[5]  
Litva J., 1996, DIGITAL BEAMFORMING
[6]  
Matsuoka H, 2003, PIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003, P1603
[7]   Multiple-Antenna Techniques for Wireless Communications - A Comprehensive Literature Survey [J].
Mietzner, Jan ;
Schober, Robert ;
Lampe, Lutz ;
Gerstacker, Wolfgang H. ;
Hoeher, Peter A. .
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS, 2009, 11 (02) :87-105
[8]  
Seydnejad S., 2011, 2011 International Conference on Communications and Signal Processing (ICCSP), P14, DOI 10.1109/ICCSP.2011.5739358
[9]   A Combined Time-Frequency Domain Beamforming Method for OFDM Systems [J].
Seydnejad, Saeid ;
Akhzari, Sadegh .
2010 INTERNATIONAL ITG WORKSHOP ON SMART ANTENNAS (WSA 2010), 2010, :292-299
[10]  
Van Nee R, 2011, IEEE WIREL COMMUN, V18, P4
1