Research Article
Distributed Subchannel Assignment in a Multiuser MIMO Relay
@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
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.
