Sleepers and workaholics: caching strategies in mobile environments
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Bit-sequences: an adaptive cache invalidation method in mobile client/server environments
Mobile Networks and Applications
A study on channel allocation for data dissemination in mobile computing environments
Mobile Networks and Applications - Special issue: resource management in mobile wireless communication networks
A scalable low-latency cache invalidation strategy for mobile environments
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Data on Air: Organization and Access
IEEE Transactions on Knowledge and Data Engineering
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Broadcasting is a very effective technique to disseminate information to a massive number of clients when the data size is small. However, if the data size is large, the broadcast cycle may be long, and hence the access delay becomes a problem. Caching frequently accessed data at the client side can reduce the access latency and improve the bandwidth utilization. However, caching techniques may not perform well when the data are frequently updated. In this paper, we propose to apply different techniques (broadcasting and caching) to deal with different components of the data based on their update frequency. Compared to previous schemes, the proposed solution not only reduces the query latency, but also improves the throughput and the bandwidth utilization.