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Computer Science > Information Theory

arXiv:2101.08918 (cs)
[Submitted on 22 Jan 2021]

Title:Performance Analysis for Cache-enabled Cellular Networks with Cooperative Transmission

Authors:Tianming Feng, Shuo Shi, Shushi Gu, Ning Zhang, Wei Xiang, Xuemai Gu
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Abstract:The large amount of deployed smart devices put tremendous traffic pressure on networks. Caching at the edge has been widely studied as a promising technique to solve this problem. To further improve the successful transmission probability (STP) of cache-enabled cellular networks (CEN), we combine the cooperative transmission technique with CEN and propose a novel transmission scheme. Local channel state information (CSI) is introduced at each cooperative base station (BS) to enhance the strength of the signal received by the user. A tight approximation for the STP of this scheme is derived using tools from stochastic geometry. The optimal content placement strategy of this scheme is obtained using a numerical method to maximize the STP. Simulation results demonstrate the optimal strategy achieves significant gains in STP over several comparative baselines with the proposed scheme.
Comments: arXiv admin note: text overlap with arXiv:2101.08669
Subjects: Information Theory (cs.IT); Signal Processing (eess.SP)
Cite as: arXiv:2101.08918 [cs.IT]
  (or arXiv:2101.08918v1 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.2101.08918

Submission history

From: Tianming Feng [view email]
[v1] Fri, 22 Jan 2021 02:00:06 UTC (850 KB)
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