Service-Oriented Wireless Multimedia Multicasting with Partial Frequency Reuse
Service-Oriented Wireless Multimedia Multicasting with Partial Frequency Reuse
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DOI：
10.1109/tst.2016.7787003
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发表时间：
2016-12
影响因子：
6.6
通讯作者：
Quanxin Zhao;Liang Xu;Y. Mao;S. Leng;G. Min;Jia Hu;Noushin Najjari
中科院分区：
文献类型：
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作者：
Quanxin Zhao;Liang Xu;Y. Mao;S. Leng;G. Min;Jia Hu;Noushin Najjari
面向服务的体系结构（SOA）被广泛应用于各种应用程序中，因为它承诺将计算密集型任务公开为服务，并将它们与新的应用程序相结合，以加速其应用程序的开发过程。对于面向业务的多媒体应用，必须对多媒体业务下的组播传输业务性能进行评估。多视点视频（MVV）是一种新兴的多媒体业务，它由多个视频流组成，允许流切换，并要求严格的服务质量（QoS）。在这项研究中，我们研究了MVV在部分频率复用（PFR）的无线蜂窝网络中的组播传输，并集中在两个具有挑战性的问题：（1）组播组的形成和（2）子信道和功率分配。首先，我们提出了一种新的基于内容的部分频率复用分集分配（CPDG）计划的基础上，部分频率复用分集（PD）的PFR无线网络中的多播组分配用户。分组后，子信道和功率分配的优化问题，制定在QoS约束下最小化网络功耗。然后，将优化问题分解为两个子问题，并利用单纯形法和KKT条件求解。最后，为了解决优化问题，一个次优方案被称为部分频率复用分集的能量有效的多播（PDEM），提出了动态分配无线资源的QoS约束下。仿真结果表明，所提出的PDEM方案可以达到接近最优的性能。此外，PD对网络性能的影响的数学分析可以提供多媒体业务的优化在多播使能的无线蜂窝网络与PFR的指导方针。
Service-Oriented Architecture (SOA) is employed in a wide range of applications because it promises to expose computation-intensive tasks as services and combine them with new applications to accelerate their applications development process. For service-oriented multimedia applications, the performance of multicasting transmission services under multimedia traffic must be evaluated. Multiview Video (MVV) is a promising and emerging type of multimedia traffic that consists of multiple video streams, allows stream switching, and requires strict Quality-of-Service (QoS). In this study, we investigated multicast transmission of MVV in wireless cellular networks with Partial Frequency Reuse (PFR) and focused on two challenging problems: (1) multicast group formation and (2) subchannel and power allocation. Initially, we propose a novel Content-based Partial frequency reuse Diversity Grouping (CPDG) scheme to allocate users to multicast groups on the basis of Partial frequency reuse Diversity (PD) in wireless networks with PFR. After group formation, an optimization problem for subchannel and power allocation is formulated to minimize network power consumption under QoS constraint. Thereafter, the optimization problem is divided into two subproblems and solved using simplex method and Karush-Kuhn-Tucker (KKT) condition. Finally, to solve the optimization problem, a suboptimal scheme referred to as Partial frequency reuse Diversity Based Energy-efficient Multicasting (PDEM) is proposed by dynamically allocating wireless resources under QoS constraint. The simulation results show that the proposed PDEM scheme can achieve close-to-optimal performance. Moreover, mathematical analysis of the effect of PD on network performance can provide guidelines for optimization of multimedia traffic in multicasting-enabled wireless cellular networks with PFR.