A cache replacement strategy based on content features in named data networking
Yishun Wei, Kai Shi, Jinchi Li · Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering · 2021
Implementing an efficient cache replacement policy in Named Data Networking (NDN) and designing a cache replacement policy with content characteristics. The CS (Cache Store) of each node individually calculates the relative popularity of the data packet weighted by the number of requests in the period and uses this value as the content's characteristic to replace the cached data packet. This results in the retention of cached content with a high value of usefulness. In addition, a new cache value function is constructed so that high-value content is stored in the router for as long as possible to ensure efficient use of cache resources. Simulation results show that this strategy can effectively improve cache hit rate, Improve cache resource utilisation, reduce energy consumption and reduce the cost of requests for data acquisition.