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Utility optimal multimedia communications with QoS guarantees in cooperative networks

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3 Author(s)
Qiulin ; Beijing Univ. of Posts & Telecommun., Beijing, China ; Song Meina ; Wei Jin

In this paper, we present a fully distributed cross-layer algorithm with delay constraint in order to support real-time multimedia services in cooperative networks. The Network Utility Maximization problem is decomposed into congestion-contention control subproblem in the link layer and routing subproblem in the network layer. We design an End-to-end delay framework for modeling delay constraint in analyzing the network utility maximization problem such that Quality-of-Service (QoS) guarantees for multimedia communication is enhanced. This paper presents a step forward a systematic understanding of layering as optimization decomposition, where the overall communication network is modeled by a generalized network utility maximization problem, each layer corresponds to a decomposed subproblem. Convergence analysis and simulation indicates this algorithm can converge. The proposed algorithm can be easily generalized into other multi-hop wireless ad hoc networks.

Published in:

Web Society (SWS), 2010 IEEE 2nd Symposium on

Date of Conference:

16-17 Aug. 2010