NDLI: Maximal-ratio combining architectures and performance with channel estimation based on a training sequence

Content Provider	IEEE Xplore Digital Library
Author	Roy, S. Fortier, P.
Copyright Year	2002
Abstract	Maximum-ratio combining (MRC) is a simple and effective combining scheme for adaptive antenna arrays to combat noise, fading, and to a certain degree, cochannel interference. However, it requires estimation of the spatial signature (i.e., the channel gain and phase at each antenna element) of the desired signal across the array. Assuming that this estimate is obtained by correlation using a known training sequence of K symbols embedded in the useful signal, we proceed to develop a fully analytical assessment of the impact of estimation error on the output signal-to-noise ratio (SNR) of the array. The originality of the approach revolves around the derivation of the distribution of the normalized SNR, that is the real SNR normalized to the ideal (i.e., perfect estimation) SNR. The end result is a set of distributions which can potentially reduce or in certain cases eliminate the need for simulation to determine certain design parameters such as array size, training sequence length, etc. These are then applied to find closed-form expressions for the outage probability and the error probability in differential phase-shift keying and quarternary phase-shift keying after training in uncorrelated Rayleigh fading.
Starting Page	1154
Ending Page	1164
Page Count	11
File Size	373565
File Format	PDF
ISSN	15361276
Volume Number	3
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Diversity reception Channel estimation Adaptive arrays Antenna arrays Phased arrays Fading Interchannel interference Phase estimation Signal analysis Estimation error
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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The Effect of Imperfect Channel Estimation on the Performance of Maximum Ratio Combining in the Presence of Cochannel Interference

Performance comparison of MRC and IC under transmit diversity

Performance analysis of maximum ratio combining with imperfect channel estimation in the presence of cochannel interferences

Error probability and SINR analysis of optimum combining in rician fading

Maximal-Ratio Eigen-Combining for Smarter Antenna Arrays

Error performance of maximal-ratio combining with transmit antenna selection in flat Nakagami-m fading channels

Effect of fading correlation on the SER performance of M-ary PSK with maximal ratio combining

On the outage probability of optimum combining and maximal ratio combining schemes in an interference-limited Rice fading channel

Performance of antenna array systems with optimum combining in a Rayleigh fading environment

Maximal-ratio combining architectures and performance with channel estimation based on a training sequence

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