A novel coordinated edge caching with request filtration in radio access network

Area of Science:

• Computer Science
• Telecommunications Engineering
• Network Engineering

Background:

• Content caching in Radio Access Networks (RANs) is essential for reducing backhaul traffic and enhancing user experience.
• Effective management of massive microcaches is critical for increasing mobile network capacity and handling numerous requests.

Purpose of the Study:

• To propose a novel caching scheme for RANs that reduces repeating traffic and optimizes content storage.
• To improve overall mobile network capacity and quality of experience through coordinated caching strategies.
• To minimize average user-perceived latency by determining optimal cache division.

Main Methods:

• Implementation of a novel caching scheme involving request filtration and asynchronous multicast.
• Integration of mobile device storage to further decrease backhaul traffic.
• Derivation of optimal cache division strategies to reduce latency.

Main Results:

• The proposed scheme effectively reduces repeating traffic in the RAN.
• Coordinated caching, enhanced by request filtration, optimizes the use of limited bandwidth.
• Simulation results demonstrate superior performance compared to existing caching algorithms.

Conclusions:

• The novel caching scheme significantly enhances mobile network capacity and user experience.
• Optimized cache division and utilization of mobile device storage are key to reducing latency and backhaul traffic.
• The proposed approach offers a promising solution for efficient content caching in modern RANs.