A Novel Mobile Edge Network Architecture with Joint Caching-Delivering and Horizontal Cooperation
Yuris Mulya Saputra, Dinh Thai Hoang, Diep N. Nguyen, and Eryk, Dutkiewicz

TL;DR
This paper proposes a new mobile edge network architecture, JOCAD, that uses joint caching, delivery, and horizontal cooperation among edge nodes to significantly reduce delay and backhaul traffic.
Contribution
It introduces the JOCAD architecture, enabling cooperative caching and delivery among mobile edge nodes, which is a novel approach for optimizing network performance.
Findings
Reduced average delay by up to 40% compared to frequency-of-access policy.
Increased cache hit rate by four times.
Decreased backhaul traffic load significantly.
Abstract
Mobile edge caching/computing has been emerging as a promising paradigm to provide new services (e.g., ultra-high rate, ultra-reliable, and/or low-latency communications) in future wireless networks. In this paper, we introduce a novel mobile edge caching network architecture that leverages the optimal joint caching-delivering with horizontal cooperation among mobile edge nodes (MENs), namely JOCAD. Under this architecture, MENs cooperate with each other in both caching and delivering contents, aiming to simultaneously minimize the total average delay for the mobile users and mitigate the network traffic on the backhaul link. Extensive simulations demonstrate that the proposed solutions can reduce the total average delay for the whole network up to 40% compared with the most frequency-of-access policy, and up to 25% compared with locally optimal caching policy (i.e., without…
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