TY - GEN
T1 - Overload-driven mobility-aware cache management in wireless environments
AU - Topcu-Altintas, Humeyra
AU - Huang, Yun
AU - Venkatasubramanian, Nalini
PY - 2006
Y1 - 2006
N2 - In this paper, we propose a novel cache management strategy that uses the notion of "overload" where overload is defined as a situation when there is insufficient proxy cache for a new incoming user in a mobile region. In an overloaded situation, there will be increased network traffic (since the original server will need to be contacted) and increased service delays for mobile hosts (due to cache misses). The proposed techniques attempt to decrease the penalty of overloaded traffic and to reduce the number of remote accesses by increasing cache hit ratio. Our cache replacement algorithm is holistic in that it considers (i) mobility of the clients, (ii) predicted overloads, (iii) sizes of cached objects and (iv) their access frequencies in determining which object's cache (how much cache space) to be replaced, and when to replace. Performance results show that our overload-driven cache management strategy outperforms the existing popular policies.
AB - In this paper, we propose a novel cache management strategy that uses the notion of "overload" where overload is defined as a situation when there is insufficient proxy cache for a new incoming user in a mobile region. In an overloaded situation, there will be increased network traffic (since the original server will need to be contacted) and increased service delays for mobile hosts (due to cache misses). The proposed techniques attempt to decrease the penalty of overloaded traffic and to reduce the number of remote accesses by increasing cache hit ratio. Our cache replacement algorithm is holistic in that it considers (i) mobility of the clients, (ii) predicted overloads, (iii) sizes of cached objects and (iv) their access frequencies in determining which object's cache (how much cache space) to be replaced, and when to replace. Performance results show that our overload-driven cache management strategy outperforms the existing popular policies.
UR - http://www.scopus.com/inward/record.url?scp=50249147766&partnerID=8YFLogxK
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U2 - 10.1109/MOBIQW.2006.361731
DO - 10.1109/MOBIQW.2006.361731
M3 - Conference contribution
AN - SCOPUS:50249147766
SN - 1424404991
SN - 9781424404995
T3 - 2006 3rd Annual International Conference on Mobile and Ubiquitous Systems, MobiQuitous - Workshops
BT - 2006 3rd Annual International Conference on Mobile and Ubiquitous Systems, MobiQuitous - Workshops
T2 - 2006 3rd Annual International Conference on Mobile and Ubiquitous Systems, MobiQuitous
Y2 - 17 July 2006 through 21 July 2006
ER -