An error control scheme with weldon's ARQ considering various qos in medical and non-medical uses for wireless bans

Abstract

This paper proposes and investigates an novel hybrid ARQ type of error control scheme using Weldon's ARQ in order to satisfy different requirement of QoS in medical and nonmedical data for wireless body area networks (WBANs). Although an international standard of WBANs has been established as IEEE802.1S.6 in February 2012, its optional hybrid ARQ scheme has not properly designed so that error detecting and correcting capabilities and permissible delay can be optimized for each requirement of 7 different QoS modes. The proposed scheme employs decomposable codes in order to adjust balance between error-correcting capability of codes and number of retransmission according to each QoS. Numerical results illustrate the proposed scheme can improve BER and throughput performances satisfying each QoS.