무선 멀티 홉 환경에서 ARQ를 통한 재전송 지속성 관리 기법

Abstract

Multi-hop wireless networks has become common phenomenon according to a development of wireless communications and an increase of usage of wireless link. ARQ is one of the common protocols in link layer and can improve a link performance recovering packet loss in wireless link. However, ARQ cannot sufficient to assure a end-to-end performance because ARQ only manages the ARQ's own link. In this paper, we propose a new retransmission persistence for ARQ in multi-hop wireless network to satisfy the end-to-end performance. The proposed scheme can aware a bottleneck link according to the exchange of link information between ARQs and can support the end-to-end performance by managing a retransmission persistence. OPNET simulator is used to evaluate the performance of the proposed scheme and results show that proposed scheme can improve the end-to-end performance with satisfying a requirement of entire wireless section. 논문 14-39B-10-05 The Journal of Korea Information and Communications Society '14-10 Vol.39B No.10 http://dx.doi.org/10.7840/kics.2014.39B.10.674 674 ※ 본 연구는 Seoul RB Revised September 23, 2014; Accepted October 13, 2014 논문 / 무선 멀티 홉 환경에서 ARQ를 통한 재전송 지속성 관리 기법