Multimedia Multicast Services in 5G Networks: Subgrouping and Non-Orthogonal Multiple Access Techniques
Multimedia Multicast Services in 5G Networks: Subgrouping and Non-Orthogonal Multiple Access Techniques
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DOI：
10.1109/mcom.2018.1700660
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发表时间：
2018-03-01
影响因子：
11.2
通讯作者：
Araniti, Giuseppe
中科院分区：
文献类型：
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作者：
Montalban, Jon;Scopelliti, Pasquale;Araniti, Giuseppe
宽带蜂窝网络上移动视频需求的预期增长是推动无线行业发展第五代网络技术的关键因素之一。这种情况助长了对面向组的服务(即，多播和广播)的需求，以便有效地管理无线电资源，并因此允许不同的用户组以不同的服务质量同时访问相同的多媒体内容。演进多媒体广播组播服务(EMBMS)由第三代合作伙伴计划标准化，是可能扩展到5G系统的技术之一，目的是解决点对多点服务。此外，非正交多址(NOMA)技术也被认为是在非对称数据传输的多用户环境中提高频谱效率的驱动因素。本文提出在类似eMBMS的场景中联合使用分组多播技术和NOMA。性能评估是在设想的5G环境中进行的，在这种环境中，向一组对相同内容感兴趣的用户提供不同质量的视频服务。
The expected growth in mobile video demand over broadband cellular networks is one of the key factors driving the wireless industry to develop the fifth generation of network technology. This scenario is fueling the need for group-oriented services (i. e., multicast and broadcast) in order to efficiently manage the radio resources, and consequently grant different groups of users simultaneous access to the same multimedia content with differentiated quality of service. The evolved multimedia broadcast multicast service (eMBMS), standardized by the Third Generation Partnership Project, is one of the technologies likely to be extended to 5G systems with the aim of addressing point-to-multipoint services. In addition, non-orthogonal multiple access (NOMA) techniques are also being considered as a driver to increase the efficient use of the spectrum in multi-user environments with asymmetric data delivery. The present article proposes the joint use of subgrouping multicast techniques and NOMA in an eMBMS-like scenario. Performance is evaluated in envisaged 5G environments, where different quality video services are delivered to a group of users interested in the same contents.