PRIME ARQ : A Novel ARQ Scheme for High-Speed Wireless ATM(Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21^<st>Century)

概要

論文の詳細を見る
Automatic repeat request (ARQ) for wireless ATM(WATM) operating at 20 Mbit/s or higher is required to achieve high throughput performance as well as high transmission quality, i.e., low CLR(cell loss ratio). Selective Repeat (SR) and Go-Back-N(GBN) are typical ARQ schemes [2]. Though SR-ARQ is superior to GBN-ARQ in throughput performance, the implementation complexity of SR-ARQ's control procedures is disadvantageous to its application to high-speed wireless systems. In addition, when PDU(protocol data unit) length on wireless link is short, the capacity for ARQ control messages can be significantly large. GBN-ARQ, on the other hand, cannot avoid serious throughput degradation due to fairly high BER caused by multipath fading and shadowing, though its implementation is simple. To solve the above-mentioned problems, this paper proposes a novel ARQ scheme named PRIME-ARQ(Partial selective Repeat superIMposEd on gbn ARQ). PRIME-ARQ achieves high throughput performance, almost equal to selective repeat ARQ, with a simple algorithm resulting in reduced implementation complexity for high speed operation. This paper describes the design, implementation, and performance of the proposed PRIME-ARQ. In addition, it shows the experimental results using an experimental PRIME-ARQ hardware processor and proto-type AWA equipment.
社団法人電子情報通信学会の論文
2001-03-01