An efficient type-II hybrid-ARQ protocol using punctured R-S codes for wireless ATM networks

Author

Verikoukis, Ch V. ; Olmos, J.J.

Author_Institution

Dept. de Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

3

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

1725

Abstract

A type-II hybrid-ARQ protocol, based on punctured Reed-Solomon (R-S) codes for the W-LLC layer of a W-ATM system, is presented. In this protocol a shortened (n,k) R-S code is decomposed into a pair of (n/2, k) punctured R-S codes which are used to protect transmissions. R-S codes are the most commonly used maximum distance separable (MDS) codes and the proposed protocol makes use of the properties of the MDS codes. The objective of the protocol is to use a low number of retransmissions in order to guarantee minimum delay, while keeping maximum throughput and low cell error rate (CER). The performance of the proposed protocol in a realistic indoor environment, taking into consideration the QoS requirements for real time applications is analysed. The analysis was carried out for a multicarrier modulation scheme (OFDM) with QPSK modulation on each carrier. The hidden Markov model (HMM) is used for modelling the physical layer of the system

Keywords

OFDM modulation; Reed-Solomon codes; asynchronous transfer mode; automatic repeat request; delays; error statistics; hidden Markov models; indoor radio; packet radio networks; personal communication networks; quadrature phase shift keying; HMM; MDS codes; OFDM; QPSK modulation; QoS requirements; R-S codes; W-ATM system; W-LLC layer; efficient type-II hybrid-ARQ protocol; hidden Markov model; low cell error rate; maximum distance separable codes; maximum throughput; minimum delay; multicarrier modulation; performance; personal communication systems; physical layer modelling; punctured Reed-Solomon codes; real time applications; shortened R-S code; transmission protection; wireless ATM networks; Delay; Error analysis; Hidden Markov models; Indoor environments; OFDM modulation; Performance analysis; Protection; Protocols; Reed-Solomon codes; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.801606

Filename

801606