Optimal and Fair Resource Allocation for Multiuser Wireless Multimedia Transmissions

Autor: Zhangyu Guan, Dongfeng Yuan, Haixia Zhang
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: EURASIP Journal on Wireless Communications and Networking, Vol 2009 (2009)
Druh dokumentu: article
ISSN: 1687-1472
1687-1499
DOI: 10.1155/2009/801613
Popis: This paper presents an optimal and fair strategy for multiuser multimedia radio resource allocation (RRA) based on coopetition, which suggests a judicious mixture of competition and cooperation. We formulate the co-opetition strategy as sum utility maximization at constraints from both Physical (PHY) and Application (APP) layers. We show that the maximization can be solved efficiently employing the well-defined Layering as Optimization Decomposition (LOD) method. Moreover, the coopetition strategy is applied to power allocation among multiple video users, and evaluated through comparing with existing- competition based strategy. Numerical results indicate that, the co-opetition strategy adapts the best to the changes of network conditions, participating users, and so forth. It is also shown that the coopetition can lead to an improved number of satisfied users, and in the meanwhile provide more flexible tradeoff between system efficiency and fairness among users.
Databáze: Directory of Open Access Journals
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