Source and channel coding for cooperative relaying

Deniz Gunduz; Elza Erkip

doi:10.1109/SPAWC.2005.1506280

Source and channel coding for cooperative relaying

Deniz Gunduz, Elza Erkip

Electrical and Computer Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

We consider the end-to-end distortion achieved by a half-duplex relay system where a continuous amplitude source is transmitted over a quasi-static Rayleigh fading channel. We investigate layered source coding (LS) where different source layers are sent at different times. The relay only forwards the important layers, leading to higher multiplexing gains. Alternatively, different source layers can be superimposed using a broadcast code (BS). The third strategy we consider is uncoded transmission (UT) followed by amplify-and-forward relaying. In all cases we perform a high S N R analysis and find the optimal distortion exponent which is the exponential decay rate of expected distortion with increasing S N R. We show that layered compression and broadcast coding is optimal in distortion exponent sense for large bandwidth expansions:

Original language	English (US)
Pages	950-954
Number of pages	5
DOIs	https://doi.org/10.1109/SPAWC.2005.1506280
State	Published - 2005
Event	2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005 - New York, NY, United States Duration: Jun 5 2005 → Jun 8 2005

Other

Other	2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005
Country/Territory	United States
City	New York, NY
Period	6/5/05 → 6/8/05

ASJC Scopus subject areas

Signal Processing
General Engineering

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10.1109/SPAWC.2005.1506280

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title = "Source and channel coding for cooperative relaying",

abstract = "We consider the end-to-end distortion achieved by a half-duplex relay system where a continuous amplitude source is transmitted over a quasi-static Rayleigh fading channel. We investigate layered source coding (LS) where different source layers are sent at different times. The relay only forwards the important layers, leading to higher multiplexing gains. Alternatively, different source layers can be superimposed using a broadcast code (BS). The third strategy we consider is uncoded transmission (UT) followed by amplify-and-forward relaying. In all cases we perform a high S N R analysis and find the optimal distortion exponent which is the exponential decay rate of expected distortion with increasing S N R. We show that layered compression and broadcast coding is optimal in distortion exponent sense for large bandwidth expansions:",

author = "Deniz Gunduz and Elza Erkip",

year = "2005",

doi = "10.1109/SPAWC.2005.1506280",

language = "English (US)",

pages = "950--954",

note = "2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005 ; Conference date: 05-06-2005 Through 08-06-2005",

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AU - Gunduz, Deniz

AU - Erkip, Elza

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AB - We consider the end-to-end distortion achieved by a half-duplex relay system where a continuous amplitude source is transmitted over a quasi-static Rayleigh fading channel. We investigate layered source coding (LS) where different source layers are sent at different times. The relay only forwards the important layers, leading to higher multiplexing gains. Alternatively, different source layers can be superimposed using a broadcast code (BS). The third strategy we consider is uncoded transmission (UT) followed by amplify-and-forward relaying. In all cases we perform a high S N R analysis and find the optimal distortion exponent which is the exponential decay rate of expected distortion with increasing S N R. We show that layered compression and broadcast coding is optimal in distortion exponent sense for large bandwidth expansions:

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DO - 10.1109/SPAWC.2005.1506280

M3 - Paper

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T2 - 2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005

Y2 - 5 June 2005 through 8 June 2005

ER -

Source and channel coding for cooperative relaying

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