An Adaptive Coded Caching Scheme for Time-Varying Channels
Mirna Haidar, Yasser Fadlallah, Zeinab KASSIR, Hadi E. Sawaya, Abed Ellatif Samhat · 2024
New technologies that incorporate affordable storage at the edge, such as caching, are anticipated to facilitate the growth of wireless communication and accommodate increased traffic. In this paper, we address the challenge of adapting the original coded caching scheme to time-varying channels through a low-complexity approach. The approach categorizes graph nodes into two groups: those requiring modifications and those that remain unchanged. When a user's code rate increases, a merge process is applied to the associated graph vertices, while a split process is implemented for users with a decreased code rate. Subsequently, the graph is adaptively colored to facilitate continuous transmission. The efficacy and performance of the proposed scheme are demonstrated through simulation results.