Authors: S. Lilly Sheeba; P. Yogesh
Addresses: Department of Information Technology, Jerusalem College of Engineering, Anna University, India ' Department of Information Science and Technology, Anna University, Chennai, India
Abstract: In a mobile ad hoc network (MANET) under normal cache sharing scenarios, when the data is transmitted from source to destination, all the nodes along the path store the information on the cache layer before reaching the destination. This may result in increased node overhead, increased cache memory utility and very high end-to-end delay. In this paper, we propose an enhanced cache sharing through cooperative data cache (ECSCDC) approach for MANETs. During the transmission of desired data from the data centre back to the request originator, the data packets will be cached by the intermediate caching nodes only if required, by using the asymmetric cooperative cache approach. Those caching nodes that can retain the data in its cache, for future data retrieval is selected based on scaled power community index. By simulation results, we show that the proposed technique reduces the communication overhead, access latency and average traffic ratio near the data centre while increasing the cache hit ratio.
Keywords: mobile ad hoc network; MANET; caching; cache sharing; cache replacement.
International Journal of Biomedical Engineering and Technology, 2020 Vol.32 No.4, pp.384 - 399
Received: 27 Mar 2017
Accepted: 17 Jul 2017
Published online: 05 May 2020 *