Maximizing the Capacity of Edge-Caching Networks With User-Content Evolution Relationship
- 18 July 2022
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Vehicular Technology
- Vol. 71 (11) , 12169-12178
Abstract
System capacity is an important metric for evaluating the performance of edge-caching networks. In most previous studies, the caching content was assumed to remain unchanged in a base station. Hence, the requested probability for each content was treated as stable; In fact, both the number of content and users can change overtime, which impacts the system performance. This article firstly constructs a new user-content evolution model to infer such performance changes, and analyzes the number of links between users and content (i.e., degree). Then, the requested probability of the content and the optimal copy number are calculated by using the content degree. Next, the minimum average transmission distance of the content and system capacity under the cache scheme are given. Finally, a user-content time-varying system is simulated. The results show that the proposed model can characterize the evolution relationship between users and content and achieve better performance in terms of system capacity.Keywords
Funding Information
- National Natural Science Foundation of China (62072159, U1804164, 61902112)
- Science and Technology Foundation of Henan Educational Committee (19A510015, 20A520019, 20A520020)
This publication has 23 references indexed in Scilit:
- Joint Optimization of Multicast Energy in Delay-Constrained Mobile Wireless NetworksIEEE/ACM Transactions on Networking, 2018
- Cache increases the capacity of wireless networks2016
- On Networking of Internet of Things: Explorations and ChallengesIEEE Internet of Things Journal, 2015
- Maximizing Network Capacity with Optimal Source Selection: A Network Science PerspectiveIEEE Signal Processing Letters, 2014
- Capacity of Cache Enabled Content Distribution Wireless Ad Hoc Networks2014
- PopCache: Cache more or less based on content popularity for information-centric networking2013
- Multicast Capacity of Wireless Ad Hoc Networks Under Gaussian Channel ModelIEEE/ACM Transactions on Networking, 2009
- Mobility–capacity–delay trade-off in wireless ad hoc networksAd Hoc Networks, 2006
- Mobility increases the capacity of ad hoc wireless networksIEEE/ACM Transactions on Networking, 2002
- The capacity of wireless networksIEEE Transactions on Information Theory, 2000