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Design and implementation of a token bus protocol for a power line local area network

This thesis presents the development and implementation of a token bus protocol for a Power Line Local Area Network (PLLAN) which utilizes intra-building power distribution circuit as the physical transmission medium. This medium provides a low cost means for data communications with a high degree of portability. Due to the characteristics of the power line and the prototype modem, the network would be easily saturated with data and would have a high collision probabilities. The IEEE 802.4 token bus standard is modified to fit the PLLAN and to bring its performance up. A comparative performance of the original protocol and the modified version shows that the latter provides an improvement in network throughput of up to 15 percent and a reduction in the network join-ring delay of up to 20 percent for a wide workload range. The performance figures of the modified version in a power line network of three SUN 3/50 workstations¹ transmitting at 9.6 kilo-bit per second is also presented and analyzed.
¹Sun workstation is a trademark of Sun Microsystems. / Science, Faculty of / Computer Science, Department of / Graduate

Identiferoai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/27930
Date January 1988
CreatorsGu, Hua
PublisherUniversity of British Columbia
Source SetsUniversity of British Columbia
LanguageEnglish
Detected LanguageEnglish
TypeText, Thesis/Dissertation
RightsFor non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.

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