6533b853fe1ef96bd12abf89

RESEARCH PRODUCT

Design and performance evaluation of an hybrid reservation-polling MAC protocol for power-line communications

Giuseppe BianchiIlenia TinnirelloG. Conigliaro

subject

Computer Networks and CommunicationsNetwork packetComputer sciencebusiness.industryRetransmissionReal-time computingReservationCommunications systemNoise (electronics)Packet lossElectrical and Electronic EngineeringPollingbusinessComputer networkCommunication channel

description

This paper presents an hybrid reservation-polling MAC protocol able to effectively deal with the channel disturbances typical of Power-line communication systems. Channel access is controlled by a scheduler running on a centralized station. Fast retransmission of corrupted packets is employed to achieve high performance on Power-line channels characterized by frequent error bursts due to impulsive noise. The performance of our proposed mechanism are evaluated by means of simulation, for the more challenging case of time-sensitive traffic sources (voice calls). Results show that the system efficiency is virtually not affected by lightly to moderately disturbed PLC channel. Moreover, by slightly reducing the system utilization, a target 1% packet loss ratio can be met even in the presence of severe channel disturbances. Copyright © 2003 John Wiley & Sons, Ltd.

https://doi.org/10.1002/dac.597