A Proximity based Retransmission Scheme for Power Line Ad-hoc LAN

TL;DR

This paper proposes a proximity-based retransmission scheme for power line LANs, utilizing adaptive slotted transmission and local retransmissions to improve data reliability over the highly dynamic power line channel.

Contribution

It introduces a novel proximity-based retransmission approach combined with a slotted transmission scheme for power line LANs, addressing channel variability and packet corruption issues.

Findings

Enhanced packet delivery reliability demonstrated

Effective use of proximity for retransmission

Improved data transfer stability over power lines

Abstract

Power line as an alternative for data transmission is being explored, and also being used to a certain extent. But from the data transfer point of view, power line, as a channel is highly dynamic and hence not quite suitable. To convert the office or home wiring system to a Local Area Network (LAN), adaptive changes are to be made to the existing protocols. In this paper, a slotted transmission scheme is suggested, in which usable timeslots are found out by physically sensing the media. Common usable timeslots for the sender-receiver pair are used for communication. But these will not ensure safe packet delivery since packets may be corrupted on the way during propagation from sender to receiver. Therefore, we also suggest a proximity based retransmission scheme where each machine in the LAN, buffers good packet and machines close to the receiver retransmit on receiving a NACK.