Performance evaluation of type-of-service based directed retry strategy in cellular mobile networks

TitlePerformance evaluation of type-of-service based directed retry strategy in cellular mobile networks
Publication TypeConference Paper
Year of Publication1997
AuthorsJiang, Y., and V. K. Bhargava
Conference NameUniversal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on
Pagination676 -680 vol.2
Date Publishedoct.
Keywordsblocking probability reduction, cellular mobile networks, cellular radio, channel occupancy statement, delay nonsensitive services, delay-sensitive services, delays, efficient channel utilization, fixed channel assignment, frequency allocation, handoff probability, handoff processing load, land mobile radio, M/M/m/k queue, mean path length, overlapped area fraction, performance evaluation, probability, queue length, queueing theory, radio networks, telecommunication traffic, traffic load, type-of-service based directed retry

Type-of-service based directed retry strategy is investigated to achieve efficient channel utilization for different types of users in mobile cellular environments. Directed retry takes advantage of inevitable overlap among cells to increase the channel utilization and reduce the blocking probability in each cell. A M/M/m/k queue is used to model the channel occupancy statement. Several parameters, such as traffic load, queue length, blocking probability and overlapped area fraction, are studied for comparisons among different types of users, e.g., delay-sensitive and delay non-sensitive. Additional handoff processing load, which is due to directed retry and related to overlapped area fraction and mean path length, is estimated. The results show that the additional handoff probability caused by directed retry is quite small, even in the case of delay-sensitive services


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