arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.02518cs.ITmath.IT
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用于位置相关内容传送的非对称编码缓存

Non-Symmetric Coded Caching for Location-Dependent Content Delivery

Hamidreza Bakhshzad Mahmoodi, MohammadJavad Salehi, Antti Tölli

摘要:

沉浸式观看正在成为人机交互的下一个界面演进。真正的无线沉浸式应用需要超低延迟的大量数据传输,这对下一代无线网络提出了严格的要求。解决这些要求的一个潜在解决方案是有效利用设备内存储和计算能力。本文提出了一种新的基于位置的编码缓存放置和交付方案,利用嵌套编码调制(NCM),使多速率组播传输。为了在不同的网络位置提供统一的体验质量,我们制定了一个线性规划缓存分配问题。其次,基于用户的空间实现,我们采用基于NCM的编码传输算法,以有效地服务于一个不同的用户组在每次传输。数值结果表明,所提出的基于位置的交付方法显着提高传输效率相比,最先进的。

英文摘要:

Immersive viewing is emerging as the next interface evolution for human-computer interaction. A truly wireless immersive application necessitates immense data delivery with ultra-low latency, raising stringent requirements for next-generation wireless networks. A potential solution for addressing these requirements is through the efficient usage of in-device storage and computation capabilities. This paper proposes a novel location-based coded cache placement and delivery scheme, which leverages the nested code modulation (NCM) to enable multi-rate multicasting transmission. To provide a uniform quality of experience in different network locations, we formulate a linear programming cache allocation problem. Next, based on the users' spatial realizations, we adopt an NCM based coded delivery algorithm to efficiently serve a distinct group of users during each transmission. Numerical results demonstrate that the proposed location-based delivery method significantly increases transmission efficiency compared to state of the art.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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