Path optimization for inter-switch handoff in wireless ATM networks

TitlePath optimization for inter-switch handoff in wireless ATM networks
Publication TypeConference Paper
Year of Publication1998
AuthorsWong, W. S. V., H. C. B. Chan, and V. C. M. Leung
Conference NameUniversal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Pagination615 -619 vol.1
Date Publishedoct.
Keywordsasynchronous transfer mode, average cost per connection, Bernoulli path optimization, cellular radio, cellular telephony, discrete-event simulation model, exponential path optimization, inter-switch handoff, optimisation, packet radio networks, path extension, path optimization, path optimization initiation schemes, performance, periodic path optimization, simulation results, two-phase handoff protocol, wireless ATM networks

Previously, a two-phase handoff protocol has been proposed to support inter-switch handoff in wireless ATM networks. It employs path extension for each inter-switch handoff, followed by path optimization if necessary. In this paper, we propose a number of path optimization initiation schemes to facilitate the two-phase handoff protocol. The design objective is to determine the time to invoke path optimization such that the average cost per connection is minimized. Three path optimization schemes, namely: periodic, exponential, and Bernoulli, are proposed. A discrete-event simulation model is developed to compare their performance. Simulation results indicate that the Bernoulli path optimization scheme outperforms the other two schemes by providing a lower average cost per connection


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