Efficient multimedia content delivery over cooperative 3G and broadcasting networks

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外文摘要：As wireless communications are enhanced towards "beyond 3G" (B3G)， multicast transmission is attracting more and more attention because it offers a more cost-effective provision of the multimedia content than the traditional unicast transmission。 In this context， a problem emerges regarding the multimedia content delivery in a B3G environment， as users are reachable through several overlapping wireless access networks， which potentially are multicast-enabled。 A mechanism is proposed in this paper to address this problem。 The objective is to determine the best access network and the QoS level for each user in order to maximize the overall utilities in the system。 This is achieved by three functions， namely， service scheduling (SS)， network selection (NS) and QoS adaptation (QoSA)， SS utilizes multicast transmission capability to save radio resource by scheduling a copy of the multimedia content to a group of users。 NS and QoSA enable intelligent network resource allocation in overlapping multicast-enabled networks while respecting users' preferences and QoS expectation。 Simulation results confirm the significant benefit of the proposed mechanism。

外文关键词：

3G mobile communicationbroadcastingintelligent networksmobile radiomulticast communicationmultimedia communicationquality of serviceradio access networksresource allocationschedulingB3GQoSbeyond 3Gbroadcasting networkcooperative third gener

作者：

Luan Huang、K.A. Chew、R. Tafazolli

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作者单位：

Mobile Commun. Res. Group, Surrey Univ., Guildford

会议名称：

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

会议地点：

Berlin

会议母体文献：

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

页码：

P.2279-2283

DOI：

10.1109/PIMRC.2005.1651851