Abstract
In this paper, we investigate efficient wireless data access algorithms in mobile hotspots. We introduce a proxy cache (PC) and propose PC-based poll-each-read (P-PER) and PC-based callback (P-CB) data access algorithms to reduce the transmission cost over wireless links in mobile hotspots. An analytical model is developed, and extensive simulations are conducted to demonstrate the performance of P-PER and P-CB. It is shown that P-PER and P-CB can improve cache hit performance and significantly reduce transmission cost. A tradeoff between P-PER and P-CB suggests the need to use a hybrid proxy-based approach to attain optimal performance of wireless data access in mobile hotspots.
Original language | English |
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Pages (from-to) | 3165-3177 |
Number of pages | 13 |
Journal | IEEE Transactions on Vehicular Technology |
Volume | 57 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2008 |
Keywords
- Callback (CB)
- Mobile hotspots
- Poll-each-read (PER)
- Proxy cache (PC)-based CB (P-CB)
- Proxy cache (PC)-based PER (P-PER)
- Wireless data access
ASJC Scopus subject areas
- Automotive Engineering
- Aerospace Engineering
- Electrical and Electronic Engineering
- Applied Mathematics