TY - GEN
T1 - Enhanced multi-version data broadcast schemes for time-constrained mobile computing systems
AU - Leung, Hei-Wing
AU - Yuen, Joe
AU - Lam, Kam-Yiu
AU - Chan, Edward
PY - 2002
Y1 - 2002
N2 - We study the data dissemination problem in time-constrained mobile computing systems (TCMCS) in which maximizing data currency (minimizing staleness) and meeting transaction deadlines are of equal importance as providing consistent data items to transactions. We first investigate what are the performance problems of the multi-version data (MV) broadcast technique when it is used for TCMCS. Then, we propose various enhancements to resolve the problems. In order to further reduce the probability of missing deadlines, we introduce a prioritized on-demand broadcast scheme, which is integrated with the data broadcast mechanism for disseminating data items to time-constrained transactions. The performance characteristics of the proposed strategies have been studied through extensive simulation.
AB - We study the data dissemination problem in time-constrained mobile computing systems (TCMCS) in which maximizing data currency (minimizing staleness) and meeting transaction deadlines are of equal importance as providing consistent data items to transactions. We first investigate what are the performance problems of the multi-version data (MV) broadcast technique when it is used for TCMCS. Then, we propose various enhancements to resolve the problems. In order to further reduce the probability of missing deadlines, we introduce a prioritized on-demand broadcast scheme, which is integrated with the data broadcast mechanism for disseminating data items to time-constrained transactions. The performance characteristics of the proposed strategies have been studied through extensive simulation.
KW - Broadcasting
KW - Computational modeling
KW - Computer applications
KW - Computer science
KW - Councils
KW - Delay
KW - Mobile computing
KW - Network servers
KW - Telecommunication traffic
KW - Transaction databases
UR - http://www.scopus.com/inward/record.url?scp=77649189086&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-77649189086&origin=recordpage
U2 - 10.1109/DEXA.2002.1045987
DO - 10.1109/DEXA.2002.1045987
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 769516688
VL - 2002-January
SP - 747
EP - 751
BT - Proceedings - International Workshop on Database and Expert Systems Applications, DEXA
PB - IEEE
T2 - 13th International Workshop on Database and Expert Systems Applications, DEXA 2002
Y2 - 2 September 2002 through 6 September 2002
ER -