DCIM: Distributed Cache Invalidation Method for Maintaining Cache Consistency in Wireless Mobile Networks Mail id : ambitlick@gmail.com , Contact : 8940956123

1. DCIM: Distributed Cache Invalidation
Method for Maintaining Cache Consistency
in Wireless Mobile Networks
Abstract:
In mobile ad hoc networks (MANETs) DCIM that is totally client-based. DCIM is a
pull-based algorithm that implements adaptive time to live (TTL), piggybacking, and
prefetching, and provides near strong consistency capabilities. Cached data items are assigned
adaptive TTL values that correspond to their update rates at the data source, where items with
expired TTL values are grouped in validation requests to the data source to refresh them,
whereas unexpired ones but with high request rates are prefetched from the server. In this
paper, DCIM is analyzed to assess the delay and bandwidth gains (or costs) when compared to
polling every time and push-based schemes.
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