Cooperation vs. hierarchy: an information-theoretic comparison

The performance of source-cooperation in a multi-access network is compared to that of using a wireless relay. The former network is modeled as a multi-access channel with generalized feedback and the latter as a multi-access relay channel. Using power as the cost metric, achievable rates and outage...

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Bibliographic Details
Main Authors: Sankaranarayanan, L., Kramer, G., Mandayam, N.B.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Broadcasting
Decoding
Explosions
Fading
Random variables
Rayleigh channels
Relays
Online Access:Request full text
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Summary:The performance of source-cooperation in a multi-access network is compared to that of using a wireless relay. The former network is modeled as a multi-access channel with generalized feedback and the latter as a multi-access relay channel. Using power as the cost metric, achievable rates and outage probabilities for the two networks are compared under a total transmit power constraint and a specified geometry. The use of a relay is shown to be advantageous for a variety of wireless fading channels
ISSN:2157-8095
2157-8117
DOI:10.1109/ISIT.2005.1523366