Block Window Retransmission ARQ Scheme for Next Generation High Speed IrDA Links

Abstract

Indoor infrared links are anticipated to reach 100Mbit/s or even higher data rates in the future. At this high data rate, the existing Go-Back-N automatic repeat request (ARQ) scheme requires window and frame size adaptation to the corresponding optimum values for the correspondent Bit Error Rate (BER). But adaptive approaches always add a significant amount of complexity to the system. The aim of this paper is to present a new Automatic Repeat Request (ARQ) scheme, Block Window Retransmission (BWR) ARQ scheme, for achieving higher throughput efficiency over a wide range of BERs without adaptation of parameters. Simulation results show that it significantly outperforms the existing Go-Back-N ARQ scheme for next generation high speed IrDA links. We also examine the effect of window size, frame data length and minimum turn around time on the performance of the BWR ARQ scheme.