MDS Coded Caching Leveraged by Coordinated Multi-Point Transmission

Abstract

In conventional maximum distance separable (MDS)-coded caching systems, the storage-efficient caching strategy which minimizes redundant data was believed to be optimal. However, redundantly stored data can rather be utilized to combat wireless channel impairments due to channel fading or interference. This letter explores how MDS coded caching facilitates coordinated multi-point (CoMP) transmission in cache enabled wireless networks. Optimizing the length of MDS-coded sequence and the amount of redundant cached data, we demonstrate the gain of MDS-coded caching leveraged by CoMP.