Caching and coded-Caching Caching is important for reducing backhaul requirement when serving content that many users are interested in The cache size at each user needs to be reasonable large compared to the amount of"popular"content server Coded caching can further reduce the backhaul requirement even when each individual cache size is small but the global cache size is substantial [Maddah-Ali and cache cache cache Neisen 14 User 1 User 2 User 3Caching and Coded-Caching 2 Server cache cache cache User 1 User 2 User 3 • Caching is important for reducing backhaul requirement when serving content that many users are interested in • The cache size at each user needs to be reasonable large compared to the amount of “popular” content • Coded caching can further reduce the backhaul requirement even when each individual cache size is small, but the global cache size is substantial [Maddah-Ali and Neisen ’14]