A Novel Distance Based Relocation Mechanism
to Enhance the Performance of Proxy
Cache in a Cellular Network
Mala Chelliah1, Govindaram N.1, and Nagamaputhur Gopalan2
1Department of Computer Science and Engineering, National Institute of Technology, India
2Department of Computer Applications, National Institute of Technology, India
1Department of Computer Science and Engineering, National Institute of Technology, India
2Department of Computer Applications, National Institute of Technology, India
Abstract: Accessing the World Wide Web with the wireless devices has been the promising technology for the past few years. Interruption in World Wide Web access during handover in a cellular network can be avoided by relocating in advance the proxy cache to the target base station before the handover using the path prediction algorithm. To reduce the cache overhead in the handover, this paper proposes a “distance based relocation” mechanism, in which the cache of the base station is relocated once the mobile unit reaches the relocation point in the cell. This mechanism estimates the time at which the relocation has to be done by keeping track of the distance between the mobile terminal and the base station.
Keywords: WWW, proxy cache, relocation point, path prediction, distance based relocation.
Received March 14, 2007; accepted October 10, 2007