NDLI: Array gain and capacity for known random channels with multiple element arrays at both ends

Content Provider	IEEE Xplore Digital Library
Author	Andersen, J.B.
Copyright Year	1983
Abstract	Two arrays with M and N elements are connected via a scattering medium giving uncorrelated antenna signals. The link array gain relative to the case of one element at each end is treated for the situation where the channels are known at the transmitter and receiver. It is shown that the maximum mean gain achieved through adaptive processing at both the transmitter and the receiver is less than the free space gain, and cannot be expressed as a product of separate gains. First, by finding the singular values of the transmission matrix, fundamental limitations concerning the maximum gain and the diversity orders are given, indicating that the gain is upper bounded by (/spl radic/M+/spl radic/N)/sup 2/ and the diversity order is MN. Next an iterative technique for reciprocal channels which maximizes power at each stage transmitting back and forth is described. The capacity or spectral efficiency of the random channel is described, and it is indicated how the capacity is upper bounded by N parallel channels of gain M(N
Starting Page	2172
Ending Page	2178
Page Count	7
File Size	140256
File Format	PDF
ISSN	07338716
Volume Number	18
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna arrays Receiving antennas Transmitting antennas Adaptive arrays Transmitters Diversity reception Frequency Mobile antennas Diversity methods Antenna theory
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Electrical and Electronic Engineering

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