Demand assignment multiple access and dynamic channel allocation strategies for integrating radio dispatch and telephone services over mobile satellite systems

TitleDemand assignment multiple access and dynamic channel allocation strategies for integrating radio dispatch and telephone services over mobile satellite systems
Publication TypeJournal Article
Year of Publication1992
AuthorsPowell, C. J., and V. C. M. Leung
JournalSelected Areas in Communications, IEEE Journal on
Volume10
Pagination1020 -1029
Date Publishedaug.
ISSN0733-8716
Keywordsbatch processing, batch service disciplines, batch size, call queuing, call setup delays, call setup overhead, call setup performance, channel utilization, DAMA, demand assigned multiple access, demand assignment multiple access, dynamic channel allocation, mobile radio service, mobile radio systems, mobile satellite systems, mobile telephone service, mobile terminals, mobile voice-dispatch networks, multiple spot beam satellite, pipelined signaling, radiotelephony, reserved channel margin algorithm, satellite relay systems, simulation modeling, telecommunication channels, traffic volume
Abstract

The authors discuss the performance analyses of a novel demand assignment multiple access (DAMA) scheme addressing the special characteristics of the mobile radio service (MRS), and a new method for dynamically allocating a common pool of channels to both MRS and mobile telephone service (MTS) to improve channel utilization. The new DAMA scheme makes use of call queuing, batch processing, and pipelined signaling to minimize call setup overhead for MRS traffic. MRS call setup delays were analyzed by simulation modeling of a mobile satellite system (MSS) with many mobile voice-dispatch networks operating over a multiple spot beam satellite to investigate the effects of traffic volume, batch size, and batch service disciplines. A reserved channel margin algorithm for dynamic channel allocation was shown to be effective in harmonizing the different call setup performance requirements for MTS and MRS. Numerical results show that dynamic channel allocation applied to a common pool of 40 channels enables a 20-25% increase in the number of mobile terminals compared with a fixed allocation of 20 channels to each of the two services

URLhttp://dx.doi.org/10.1109/49.144888
DOI10.1109/49.144888

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