LTE Multimedia Broadcast Multicast Service Provisioning Based on Robust Header Compression
LTE Multimedia Broadcast Multicast Service Provisioning Based on Robust Header Compression
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DOI：
10.1109/twc.2017.2776906
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发表时间：
2018-02-01
影响因子：
10.4
通讯作者：
Ding, Zhi
中科院分区：
文献类型：
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作者：
Jiang, Chen;Wu, Wenhao;Ding, Zhi
网络服务提供商面临的一个重要问题是需要在动态信道条件下通过蜂窝网络为大量用户有效地提供可靠的多媒体数据服务。在长期演进（LTE）网络中，多媒体广播多播服务（MBMS）是以高带宽效率同时支持多个用户的带宽高效数据服务。在本文中，而不是考虑频谱资源分配，我们调查MBMS规定为每个移动的用户的基础上，更高层的鲁棒报头压缩（ROHC）的考虑，以响应用户的信道质量，以减少数据包丢失。我们制定了两个不同的MBMS信道模型的利润最大化问题，并进一步提出了一个新的MBMS分配方案，为每个用户分配一个目标MBMS与最佳的ROHC参数。在此基础上，本文提出了一种动态规划算法，用于用户分配和ROHC参数优化，以达到在保证频谱资源利用率的前提下，实现利润最大化。我们的数值结果表明，在LTE系统中所提出的方法实现了可观的利润收益。
One important issue that confronts network service providers is the need to provide reliable multimedia data service efficiently over cellular networks for a large number of subscribers under dynamic channel conditions. In long term evolution (LTE) networks, multimedia broadcast multicast service (MBMS) is a bandwidth efficient data service to simultaneously support multiple users at high bandwidth efficiency. In this paper, instead of considering spectrum resource allocation, we investigate MBMS provisioning for each mobile user based on the higher layer robust header compression (ROHC) consideration in response to user channel quality to reduce packet losses. We formulate a profit maximization problem for two different MBMS channel models and further propose a new MBMS assignment scheme for each user to be assigned a target MBMS with optimal ROHC parameters. We further develop a dynamic programming algorithm for user assignment and ROHC parameters optimization to achieve maximal profit with high spectrum resource utility. Our numerical results demonstrate substantial profit gain achieved by the proposed method in LTE systems.