Performance analysis of error handling methods applied to a broadband PLC access network

Halid Hrasnica; Ralf Lehnert

doi:10.1117/12.473387

1 July 2002 Performance analysis of error handling methods applied to a broadband PLC access network

Halid Hrasnica, Ralf Lehnert

Proceedings Volume 4865, Internet Performance and Control of Network Systems III; (2002) https://doi.org/10.1117/12.473387
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

We study the error handling methods and their integration with the MAC layer to be applied to a broadband powerline communications (PLC) access network. Because of the expected unfavorable noise influence in PLC systems, various error handling mechanisms have to be applied in different network layers. On the other hand, PLC networks have to provide various telecommunication services and to ensure sufficient QoS, which is important for the competition with other communication technologies used in the access area. Therefore, we propose application of efficient reservation MAC protocols ensuring realization of QoS guarantees and providing a good utilization of a shared medium with limited transmission capacity like in PLC networks. We consider several error protection methods against disturbances for data transmission and implement them within an extended two-step reservation MAC protocol with active polling. Simulation results show that application of a fast —re-signaling procedure reduces signaling delay in disturbed networks. On the other hand, application of ARQ mechanisms improves the network utilization and data throughput significantly and reduces the packet transmission delays. However, the combination of ARQ mechanisms and a per-packet reservation MAC protocols causes so-called transmission gaps (unused portions ofthe network capacity). Therefore, we implement an ARQ-plus mechanism which avoids the transmission gaps and improves furthermore the network performances.

Citation Download Citation

Halid Hrasnica and Ralf Lehnert "Performance analysis of error handling methods applied to a broadband PLC access network", Proc. SPIE 4865, Internet Performance and Control of Network Systems III, (1 July 2002); https://doi.org/10.1117/12.473387

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