A linearized power method for adaptive beamforming in a multipath fading CDMA environment | Zendy

Ahn Sungsoo | Zendy; Choi Seungwon | Zendy; Sarkar Tapan K. | Zendy

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A linearized power method for adaptive beamforming in a multipath fading CDMA environment

Author(s) -

Ahn Sungsoo,

Choi Seungwon,

Sarkar Tapan K.

Publication year - 2001

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.10034

Subject(s) - multipath propagation , code division multiple access , autocovariance , fading , electronic engineering , algorithm , adaptive beamformer , beamforming , computer science , control theory (sociology) , mathematics , engineering , channel (broadcasting) , telecommunications , decoding methods , mathematical analysis , control (management) , fourier transform , artificial intelligence

This paper discusses an adaptive procedure of a simplified power method for computing the eigenvector corresponding to the largest eigenvalue of an autocovariance matrix. The objective is to generate a suboptimal weight vector for an adaptive array operating in a multipath fading CDMA (code‐division multiple access) channel. The total computational load of the proposed procedure is about O (4 N ), including an autocovariance matrix update, where N is the number of weights. The performance of the proposed array system is shown in terms of the BER (bit‐error rate) and the allowable capacity in a modeled IS‐95 CDMA signal environment. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 361–365, 2001.

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