Distributed Subchannel Assignment in a Multiuser MIMO Relay

Tiina Heikkinen; Ari Hottinen

1st International ICST Workshop on Game theory for Communication networks

Research Article

Distributed Subchannel Assignment in a Multiuser MIMO Relay

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@INPROCEEDINGS{10.4108/gamecomm.2007.2031,
    author={Tiina Heikkinen and Ari Hottinen},
    title={Distributed Subchannel Assignment in a Multiuser MIMO Relay},
    proceedings={1st International ICST Workshop on Game theory for Communication networks},
    proceedings_a={GAMECOMM},
    year={2010},
    month={5},
    keywords={Relay network resource allocation noncooperative gametheory MIMO Beamforming},
    doi={10.4108/gamecomm.2007.2031}
}

Tiina Heikkinen
Ari Hottinen
Year: 2010
Distributed Subchannel Assignment in a Multiuser MIMO Relay
GAMECOMM
ICST
DOI: 10.4108/gamecomm.2007.2031

Tiina Heikkinen¹^,*, Ari Hottinen²^,*

1: Department of Computer Science P.O. Box 68 FIN-00014 University of Helsinki, Finland
2: Radio Communications CTC Nokia Research Center P.O. Box 407, FIN-00045 Nokia Group, Finland

*Contact email: tiina.heikkinen@cs.helsinki.fi, ari.hottinen@nokia.com

Abstract

The paper studies a relay network that comprises multiple source nodes, one common multi-antenna relay node and multiple destination nodes. The transmitting nodes (source and relay) have access to channel information and to some interference-related information. A noncooperative game model is used to address the distributed resource allocation problem among different source nodes. Quality-of-Service-aware source nodes opportunistically select their transmission resources while a multi-antenna channel-aware relay node assigns the resources at the relay in a way that maximizes the sum of utilities at the destination nodes. The beam allocation game is a potential game for which the implicit joint objective (potential) of the source nodes formalizes a trade-off between the sum of individual utilities and the sum of congestion costs. Numerical examples illustrate the performance of opportunistic channel allocation.

Keywords: Relay network resource allocation noncooperative gametheory MIMO Beamforming

Published: 2010-05-16
Modified: 2011-09-15

: http://dx.doi.org/10.4108/gamecomm.2007.2031