5G Mobile Communication System Performance Improvement with Caching: A Review

Mobile core networks are facing exponential growth in traffic and computing demand as smart devices, and mobile applications become more popular. Caching is one of the most promising approaches to challenges and problems. Caching reduces the backhauling load in wireless networks by caching frequently used information at the destination node. Furthermore, proactive caching is an important technique to minimize the delay of storing planned content needs, relieving backhaul traffic and alleviating the delay caused by handovers. The paper investigates the caching types and compared caching techniques improvement with other methods used to improve 5G performance. The problems and solutions of caching in 5G networks are explored in this research. Caching research showed that the improvement with caching will depend on load, cache size, and the number of requested users who can get the required results by a proactive caching scheme. A significant decrease in traffic and total network latency can be achieved with caching.