Throughput Analysis of Decentralized Coded Content Caching in Cellular Networks

Kiskani, Mohsen Karimzadeh; Sadjadpour, Hamid R.

doi:10.1109/twc.2016.2628030

Cited by 28 publications

(9 citation statements)

References 22 publications

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“…Therefore, the probability that content n is requested at least one time is 1 − (1 − p n ) K c=1 Zc . Thus, the expected total number of distinct requests of uncoded contents is equal to the sum of aforementioned expected probability for all uncoded contents, as indicated in (10). This completes the proof.…”

Section: Pr{lsupporting

confidence: 57%

“…Next we prove (10). As mentioned before, any request (in all K SBSs) from the third group of contents that is not cached (contents indexed from N 1 + 1 to N ) should be satisfied directly by the MBS.…”

Section: Pr{lmentioning

confidence: 71%

“…As mentioned before, by defining an array and storing the result of earlier computations (dynamic programming), we can compute ( 8) and (5) in polynomial time. We can also use this technique to skip duplicate computations in other parts of the problem; for example, storing the result of (10) for one value of N 1 could be used to compute it for the next N 1 values with less computing.…”

mentioning

confidence: 99%

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Content Caching for Shared Medium Networks Under Heterogeneous Users' Behaviours

Sheshjavani,

Khonsari,

Shariatpanahi

et al. 2021

Preprint

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Content caching is a widely studied technique aimed to reduce the network load imposed by data transmission during peak time while ensuring users' quality of experience. It has been shown that when there is a common link between caches and the server, delivering contents via the coded caching scheme can significantly improve performance over conventional caching. However, finding the optimal content placement is a challenge in the case of heterogeneous users' behaviours. In this paper we consider heterogeneous number of demands and non-uniform content popularity distribution in the case of homogeneous and heterogeneous user-preferences. We propose a hybrid coded-uncoded caching scheme to trade-off between popularity and diversity. We derive explicit closed-form expressions of the server load for the proposed hybrid scheme and formulate the corresponding optimization problem. Results show that the proposed hybrid caching scheme can reduce the server load significantly and outperforms the baseline pure coded and pure uncoded and previous works in the literature for both homogeneous and heterogeneous user preferences.

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Section: Pr{lsupporting

confidence: 57%

Section: Pr{lmentioning

confidence: 71%

mentioning

confidence: 99%

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Content Caching for Shared Medium Networks Under Heterogeneous Users' Behaviours

Sheshjavani,

Khonsari,

Shariatpanahi

et al. 2021

Preprint

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“…Either way, in such a traditional data communication scheme, packets must arrive in a certain order to be considered valid. In network coding assisted data transmissions, however, packets may arrive in any order as long as they can be decoded successfully [8]. …”

Section: An Overview Of Network Coding In Relay-based D2d Communimentioning

confidence: 99%

Network Coding in Relay-Based Device-to-Device Communications

et al. 2017

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Device-to-Device (D2D) communications has been realized as an effective means to improve network throughput, reduce transmission latency, and extend cellular coverage in 5G systems. Network coding is a well-established technique known for its capability to reduce the number of retransmissions. In this article, we review state-of-the-art network coding in relay-based D2D communications, in terms of application scenarios and network coding techniques. We then apply two representative network coding techniques to dual-hop D2D communications and present an efficient relay node selecting mechanism as a case study. We also outline potential future research directions, according to the current research challenges. Our intention is to provide researchers and practitioners with a comprehensive overview of the current research status in this area and hope that this article may motivate more researchers to participate in developing network coding techniques for different relay-based D2D communications scenarios.

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“…As one of the most important and critical part of the IoT, considerable progress has been made in the field of wireless ad hoc networks (WANET) recently, particularly with respect to improving their transmission performance [ 2 ]. WANET are networks in which nodes can communicate with others by wireless transmissions without the help of centralized coordinator [ 3 ]. Nowadays, many efforts are made in the improvement of networks performance like throughput.…”

Section: Introductionmentioning

confidence: 99%

Cross-layer model design in wireless ad hoc networks for the Internet of Things

2018

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Wireless ad hoc networks can experience extreme fluctuations in transmission traffic in the Internet of Things, which is widely used today. Currently, the most crucial issues requiring attention for wireless ad hoc networks are making the best use of low traffic periods, reducing congestion during high traffic periods, and improving transmission performance. To solve these problems, the present paper proposes a novel cross-layer transmission model based on decentralized coded caching in the physical layer and a content division multiplexing scheme in the media access control layer. Simulation results demonstrate that the proposed model effectively addresses these issues by substantially increasing the throughput and successful transmission rate compared to existing protocols without a negative influence on delay, particularly for large scale networks under conditions of highly contrasting high and low traffic periods.

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Throughput Analysis of Decentralized Coded Content Caching in Cellular Networks

Cited by 28 publications

References 22 publications

Content Caching for Shared Medium Networks Under Heterogeneous Users' Behaviours

Content Caching for Shared Medium Networks Under Heterogeneous Users' Behaviours

Network Coding in Relay-Based Device-to-Device Communications

Cross-layer model design in wireless ad hoc networks for the Internet of Things

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