Optimal precoding for transmissions over linear time-varying channels

Sergio Barbarossa, Anna Scaglione

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this work we derive an approximate analytic model for the eigenfunctions of underspread LTV channels which plays a fundamental role in the analysis/synthesis of the optimal precoding that maximizes the information rate in transmissions over linear time-varying (LTV) channels. We assume that channel status information is available to both receiver and transmitter and that the channel impulse response can be predicted exactly, within a finite duration interval, from its past evolution. More specifically, we use our analytic model to prove that the optimal precoding is equivalent to apply the water-filling principle in the time-frequency domain and to simplify the computation of the optimal precoder. We include numerical results to support the validity of our model.

Original languageEnglish (US)
Title of host publicationConference Record / IEEE Global Telecommunications Conference
PublisherIEEE
Pages2545-2549
Number of pages5
Volume5
StatePublished - 1999
Externally publishedYes
Event1999 IEEE Global Telecommunication Conference - GLOBECOM'99 - Rio de Janeiro, Braz
Duration: Dec 5 1999Dec 9 1999

Other

Other1999 IEEE Global Telecommunication Conference - GLOBECOM'99
CityRio de Janeiro, Braz
Period12/5/9912/9/99

Fingerprint

Impulse response
Eigenvalues and eigenfunctions
Transmitters
Water
water
analysis
rate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Global and Planetary Change

Cite this

Barbarossa, S., & Scaglione, A. (1999). Optimal precoding for transmissions over linear time-varying channels. In Conference Record / IEEE Global Telecommunications Conference (Vol. 5, pp. 2545-2549). IEEE.

Optimal precoding for transmissions over linear time-varying channels. / Barbarossa, Sergio; Scaglione, Anna.

Conference Record / IEEE Global Telecommunications Conference. Vol. 5 IEEE, 1999. p. 2545-2549.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Barbarossa, S & Scaglione, A 1999, Optimal precoding for transmissions over linear time-varying channels. in Conference Record / IEEE Global Telecommunications Conference. vol. 5, IEEE, pp. 2545-2549, 1999 IEEE Global Telecommunication Conference - GLOBECOM'99, Rio de Janeiro, Braz, 12/5/99.
Barbarossa S, Scaglione A. Optimal precoding for transmissions over linear time-varying channels. In Conference Record / IEEE Global Telecommunications Conference. Vol. 5. IEEE. 1999. p. 2545-2549
Barbarossa, Sergio ; Scaglione, Anna. / Optimal precoding for transmissions over linear time-varying channels. Conference Record / IEEE Global Telecommunications Conference. Vol. 5 IEEE, 1999. pp. 2545-2549
@inproceedings{71f5b78e83ff4f55b57dbe48feda02a3,
title = "Optimal precoding for transmissions over linear time-varying channels",
abstract = "In this work we derive an approximate analytic model for the eigenfunctions of underspread LTV channels which plays a fundamental role in the analysis/synthesis of the optimal precoding that maximizes the information rate in transmissions over linear time-varying (LTV) channels. We assume that channel status information is available to both receiver and transmitter and that the channel impulse response can be predicted exactly, within a finite duration interval, from its past evolution. More specifically, we use our analytic model to prove that the optimal precoding is equivalent to apply the water-filling principle in the time-frequency domain and to simplify the computation of the optimal precoder. We include numerical results to support the validity of our model.",
author = "Sergio Barbarossa and Anna Scaglione",
year = "1999",
language = "English (US)",
volume = "5",
pages = "2545--2549",
booktitle = "Conference Record / IEEE Global Telecommunications Conference",
publisher = "IEEE",

}

TY - GEN

T1 - Optimal precoding for transmissions over linear time-varying channels

AU - Barbarossa, Sergio

AU - Scaglione, Anna

PY - 1999

Y1 - 1999

N2 - In this work we derive an approximate analytic model for the eigenfunctions of underspread LTV channels which plays a fundamental role in the analysis/synthesis of the optimal precoding that maximizes the information rate in transmissions over linear time-varying (LTV) channels. We assume that channel status information is available to both receiver and transmitter and that the channel impulse response can be predicted exactly, within a finite duration interval, from its past evolution. More specifically, we use our analytic model to prove that the optimal precoding is equivalent to apply the water-filling principle in the time-frequency domain and to simplify the computation of the optimal precoder. We include numerical results to support the validity of our model.

AB - In this work we derive an approximate analytic model for the eigenfunctions of underspread LTV channels which plays a fundamental role in the analysis/synthesis of the optimal precoding that maximizes the information rate in transmissions over linear time-varying (LTV) channels. We assume that channel status information is available to both receiver and transmitter and that the channel impulse response can be predicted exactly, within a finite duration interval, from its past evolution. More specifically, we use our analytic model to prove that the optimal precoding is equivalent to apply the water-filling principle in the time-frequency domain and to simplify the computation of the optimal precoder. We include numerical results to support the validity of our model.

UR - http://www.scopus.com/inward/record.url?scp=0033295958&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033295958&partnerID=8YFLogxK

M3 - Conference contribution

VL - 5

SP - 2545

EP - 2549

BT - Conference Record / IEEE Global Telecommunications Conference

PB - IEEE

ER -