Title
Energy saving strategies for cooperative cache replacement in mobile ad hoc networks
Abstract
Data caching on mobile clients is widely seen as an effective solution to improve system performance. In particular, cooperative caching, based on the idea of sharing and coordination of cache data among multiple users, can be particularly effective for information access in mobile ad hoc networks where mobile clients are moving frequently and network topology is changing dynamically. Most existing cache strategies perform replacement independently, and they seldom consider coordinated replacement and energy saving issues in the context of a mobile ad hoc network. In this paper, we analyse the impact of energy on designing a cache replacement policy and formulate the Energy-efficient COordinated cache Replacement Problem (ECORP) as a 0-1 knapsack problem. A dynamic programming algorithm called ECORP-DP and a heuristic algorithm called ECORP-Greedy are presented to solve the problem. Simulations, using both synthetic workload traces and real workload traces in our experiments, show that the proposed policies can significantly reduce energy consumption and access latency when compared to other replacement policies.
Year
DOI
Venue
2009
10.1016/j.pmcj.2008.11.002
Pervasive and Mobile Computing
Keywords
Field
DocType
cache replacement,mobile client,cache data,manet,energy consumption,cooperative caching,cooperative cache replacement,replacement policy,energy-efficient,cache replacement policy,existing cache strategy,cache replacement problem,access latency,dynamic programming algorithm,mobile ad hoc network,energy efficient,network topology,knapsack problem,system performance,heuristic algorithm
Mobile ad hoc network,Cache invalidation,Heuristic (computer science),Computer science,Cache,Computer network,Cache algorithms,Network topology,Smart Cache,Energy consumption,Distributed computing
Journal
Volume
Issue
ISSN
5
1
Pervasive and Mobile Computing
Citations 
PageRank 
References 
10
0.49
36
Authors
3
Name
Order
Citations
PageRank
Edward Chan145050.35
Wenzhong Li267655.27
Daoxu Chen374562.01