Cache space efficient caching scheme for content-centric mobile ad hoc networks

Zhang, Tiankui, Xu, Xiaogeng, Zhou, Le, Jiang, Xinwei and Loo, Jonathan ORCID: https://orcid.org/0000-0002-2197-8126 (2019) Cache space efficient caching scheme for content-centric mobile ad hoc networks. IEEE Systems Journal, 13 (1). pp. 530-541. ISSN 1932-8184

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Abstract

Content-centric mobile ad hoc networks (CCMAN) have been demonstrated as a potential complementary to multimedia content dissemination in future wireless networks. In-network caching is one of the key techniques in CCMAN, which can significantly reduce the network traffic load and improve the content retrieval performance. However, the challenges for caching in CCMAN are that all the wireless nodes can act as users and routers simultaneously, and the caching capability of each wireless node is limited by the cache size. So caching strategies should improve not only the caching performance but also the cache space efficiency. In this paper, we study the cache space efficient caching (CSEC) in CCMAN. First, the theoretical performance of caching in CCMAN is analyzed, the cache utility is defined and derived. Then, a CSEC scheme is proposed to improve the efficiency of cache space utilization in CCMAN. Accordingly, the analytical performance of the proposed CSEC in terms of the cache utility of CCMAN is given. The network performance of the proposed CSEC is evaluated by simulation. Simulation results show that the proposed CSEC can achieve optimal performance on cache utility, which can provide a tradeoff between the cache hit ratio performance and occupied cache space.

Item Type: Article
Additional Information: © 20XX IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: Mobile ad hoc networks, Analytical models, Cooperative caching, Wireless networks, Network topology
Subjects: Computing > Systems > Computer networking
Computing > Systems
Depositing User: Jonathan Loo
Date Deposited: 22 May 2019 14:53
Last Modified: 23 May 2019 09:02
URI: http://repository.uwl.ac.uk/id/eprint/6101

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