Average-rate optimal PSAM transmissions over time-selective fading channels

Shuichi Ohno; Georgios B. Giannakis

doi:10.1109/WCNC.2002.993524

Average-rate optimal PSAM transmissions over time-selective fading channels

Shuichi Ohno
, Georgios B. Giannakis

Electrical and Computer Engineering

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

9 Scopus citations

Abstract

Enabling linear minimum-mean square error (LMMSE) based estimation of random time-selective channels, pilot symbol assisted modulation (PSAM) has well documented merits as a fading countermeasure capable of improving bit error rate performance. In this paper, we establish average-rate optimality of PSAM by showing that the insertion of equi-powered and equi-spaced pilot symbols in PSAM transmissions maximizes a tight lower bound of the average channel capacity. Relying on a simple closed form expression of this bound in terms of the LMMSE channel estimator variance, we further design PSAM transmissions with optimal spacing of pilot symbols, and optimal allocation of the transmit-power budget between pilot and information symbols.

Original language	English (US)
Title of host publication	IEEE Wireless Communications and Networking Conference, WCNC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	374-378
Number of pages	5
ISBN (Electronic)	0780373766
DOIs	https://doi.org/10.1109/WCNC.2002.993524
State	Published - 2002
Event	2002 IEEE Wireless Communications and Networking Conference, WCNC 2002 - Orlando, United States Duration: Mar 17 2002 → Mar 21 2002

Publication series

Name	IEEE Wireless Communications and Networking Conference, WCNC
Volume	1
ISSN (Print)	1525-3511

Other

Other	2002 IEEE Wireless Communications and Networking Conference, WCNC 2002
Country/Territory	United States
City	Orlando
Period	3/17/02 → 3/21/02

Bibliographical note

Publisher Copyright:
© 2002 IEEE.

Publisher link

10.1109/WCNC.2002.993524

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Ohno, S., & Giannakis, G. B. (2002). Average-rate optimal PSAM transmissions over time-selective fading channels. In IEEE Wireless Communications and Networking Conference, WCNC (pp. 374-378). Article 993524 (IEEE Wireless Communications and Networking Conference, WCNC; Vol. 1). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2002.993524

Average-rate optimal PSAM transmissions over time-selective fading channels. / Ohno, Shuichi; Giannakis, Georgios B.
IEEE Wireless Communications and Networking Conference, WCNC. Institute of Electrical and Electronics Engineers Inc., 2002. p. 374-378 993524 (IEEE Wireless Communications and Networking Conference, WCNC; Vol. 1).

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

Ohno, S & Giannakis, GB 2002, Average-rate optimal PSAM transmissions over time-selective fading channels. in IEEE Wireless Communications and Networking Conference, WCNC., 993524, IEEE Wireless Communications and Networking Conference, WCNC, vol. 1, Institute of Electrical and Electronics Engineers Inc., pp. 374-378, 2002 IEEE Wireless Communications and Networking Conference, WCNC 2002, Orlando, United States, 3/17/02. https://doi.org/10.1109/WCNC.2002.993524

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abstract = "Enabling linear minimum-mean square error (LMMSE) based estimation of random time-selective channels, pilot symbol assisted modulation (PSAM) has well documented merits as a fading countermeasure capable of improving bit error rate performance. In this paper, we establish average-rate optimality of PSAM by showing that the insertion of equi-powered and equi-spaced pilot symbols in PSAM transmissions maximizes a tight lower bound of the average channel capacity. Relying on a simple closed form expression of this bound in terms of the LMMSE channel estimator variance, we further design PSAM transmissions with optimal spacing of pilot symbols, and optimal allocation of the transmit-power budget between pilot and information symbols.",

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AB - Enabling linear minimum-mean square error (LMMSE) based estimation of random time-selective channels, pilot symbol assisted modulation (PSAM) has well documented merits as a fading countermeasure capable of improving bit error rate performance. In this paper, we establish average-rate optimality of PSAM by showing that the insertion of equi-powered and equi-spaced pilot symbols in PSAM transmissions maximizes a tight lower bound of the average channel capacity. Relying on a simple closed form expression of this bound in terms of the LMMSE channel estimator variance, we further design PSAM transmissions with optimal spacing of pilot symbols, and optimal allocation of the transmit-power budget between pilot and information symbols.

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ER -

Average-rate optimal PSAM transmissions over time-selective fading channels

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