Impact of fading correlation and unequal branch gains on the capacity of diversity systems

Joshua W. Shao; Mohamed Slim Alouini; Andrea J. Goldsmith

Impact of fading correlation and unequal branch gains on the capacity of diversity systems

Joshua W. Shao, Mohamed Slim Alouini, Andrea J. Goldsmith

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We investigate the effect of fading correlation and branch gain imbalance on the Shannon capacity of diversity systems in conjunction with adaptive transmission techniques. This capacity provides the theoretical upper bound for the spectral efficiency of adaptive transmission schemes. We obtain closed-form expressions for this capacity for Rayleigh fading channels under four adaptation policies: optimal power and rate adaptation (opra), optimal rate adaptation with constant power (ora), truncated channel inversion with fixed rate (tifr), and complete channel inversion with fixed rate (cifr). We give numerical examples illustrating the main trends and offer comparisons on the behavior of opra, ora, tifr, and cifr under variation of different parameters.

Original language	English (US)
Title of host publication	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Pages	2159-2163
Number of pages	5
State	Published - 1999
Externally published	Yes
Event	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall - Houston, TX, USA Duration: Sep 19 1999 → Sep 22 1999

Publication series

Name	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Volume	3
ISSN (Print)	0740-0551

Conference

Conference	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
City	Houston, TX, USA
Period	9/19/99 → 9/22/99

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Cite this

@inproceedings{e269a68dff034fc9ae63d78a54f22da1,

title = "Impact of fading correlation and unequal branch gains on the capacity of diversity systems",

abstract = "We investigate the effect of fading correlation and branch gain imbalance on the Shannon capacity of diversity systems in conjunction with adaptive transmission techniques. This capacity provides the theoretical upper bound for the spectral efficiency of adaptive transmission schemes. We obtain closed-form expressions for this capacity for Rayleigh fading channels under four adaptation policies: optimal power and rate adaptation (opra), optimal rate adaptation with constant power (ora), truncated channel inversion with fixed rate (tifr), and complete channel inversion with fixed rate (cifr). We give numerical examples illustrating the main trends and offer comparisons on the behavior of opra, ora, tifr, and cifr under variation of different parameters.",

author = "Shao, {Joshua W.} and Alouini, {Mohamed Slim} and Goldsmith, {Andrea J.}",

year = "1999",

language = "English (US)",

isbn = "0780354354",

series = "IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall",

pages = "2159--2163",

booktitle = "IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall",

note = "IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall ; Conference date: 19-09-1999 Through 22-09-1999",

}

Shao, JW, Alouini, MS & Goldsmith, AJ 1999, Impact of fading correlation and unequal branch gains on the capacity of diversity systems. in IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall, vol. 3, pp. 2159-2163, IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall, Houston, TX, USA, 9/19/99.

Impact of fading correlation and unequal branch gains on the capacity of diversity systems. / Shao, Joshua W.; Alouini, Mohamed Slim; Goldsmith, Andrea J.
IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall. 1999. p. 2159-2163 (IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Impact of fading correlation and unequal branch gains on the capacity of diversity systems

AU - Shao, Joshua W.

AU - Alouini, Mohamed Slim

AU - Goldsmith, Andrea J.

PY - 1999

Y1 - 1999

N2 - We investigate the effect of fading correlation and branch gain imbalance on the Shannon capacity of diversity systems in conjunction with adaptive transmission techniques. This capacity provides the theoretical upper bound for the spectral efficiency of adaptive transmission schemes. We obtain closed-form expressions for this capacity for Rayleigh fading channels under four adaptation policies: optimal power and rate adaptation (opra), optimal rate adaptation with constant power (ora), truncated channel inversion with fixed rate (tifr), and complete channel inversion with fixed rate (cifr). We give numerical examples illustrating the main trends and offer comparisons on the behavior of opra, ora, tifr, and cifr under variation of different parameters.

AB - We investigate the effect of fading correlation and branch gain imbalance on the Shannon capacity of diversity systems in conjunction with adaptive transmission techniques. This capacity provides the theoretical upper bound for the spectral efficiency of adaptive transmission schemes. We obtain closed-form expressions for this capacity for Rayleigh fading channels under four adaptation policies: optimal power and rate adaptation (opra), optimal rate adaptation with constant power (ora), truncated channel inversion with fixed rate (tifr), and complete channel inversion with fixed rate (cifr). We give numerical examples illustrating the main trends and offer comparisons on the behavior of opra, ora, tifr, and cifr under variation of different parameters.

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M3 - Conference contribution

AN - SCOPUS:0032663231

SN - 0780354354

T3 - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall

SP - 2159

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BT - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall

T2 - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall

Y2 - 19 September 1999 through 22 September 1999

ER -

Impact of fading correlation and unequal branch gains on the capacity of diversity systems

Abstract

Publication series

Conference

All Science Journal Classification (ASJC) codes

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