Adaptive antenna arrays for OFDM systems with cochannel interference

被引：190
作者：
Li, Y [1 ]
Sollenberger, NR [1 ]
机构：
[1] AT&T Bell Labs, Res, Wireless Syst Res Dept, Red Bank, NJ 07701 USA
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 1999年 / 47卷 / 02期
关键词：
interference suppression; MMSE diversity combiner; mobile wireless channel; parameter estimation;
D O I：
10.1109/26.752127
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：
Orthogonal frequency-division multiplexing (OFDM) is one of the promising techniques for future mobile wireless data systems. For OFDM systems with cochannel interference, adaptive antenna arrays can be used for interference suppression, This paper focuses on a keg issue for adaptive antenna arrays, that is, parameter estimation for the minimum mean square error (MMSE) diversity combiner (DC), Using the instantaneous correlation estimation approach de, eloped in the paper, an original parameter estimator for the MMSE-DC is derived. Based on the original estimator, we propose an enhanced parameter estimator. Extensive computer simulation demonstrates that the MMSE-DC using the proposed parameter estimators can effectively suppress both synchronous and asynchronous interference in OFDM systems for packet and continuous data transmission.
引用
收藏
页码：217 / 229
页数：13
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