Probability-based heuristic content placement method for ICN caching

• Published in: Tongxin xuebao
• Main Authors: Hai-bo WU, Jun LI, Jiang ZHI
• Format: Article
• Language: Chinese
• Published: Editorial Department of Journal on Communications 2016-05-01
• Subjects: information-centric networking;in-network caching;content placement;cooperative caching
• Online Access: http://www.joconline.com.cn/thesisDetails#10.11959/j.issn.1000-436x.2016093

A probability-based heuristic caching strategy(PCP)was proposed.The major idea was that relevant informa-tion was collected when the interest and data packet are transmitted.When the data packet is returned back,on-path cache nodes decide whether to cache the content with certain probability.The probability is associated with the content popu-larity and placement benefit,i.e.,proportional to content popularity and content placement benefit.The experimental re-sults indicate PCP can achieve salient performance gain in terms of cache service ratio,cache hit ratio,access latency ra-tio,compared with current strategies.Meanwhile,PCP's overhead is affordable.