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학술대회 Impact of an ARQ Scheme in the MAC/LLC Layer on Upper-layer Packet Transmissions over a Markovian Channel
Cited 3 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
서준배, 박남훈, 이형우, 조충호
발행일
200605
출처
Vehicular Technology Conference (VTC) 2006 (Spring), pp.2058-2062
협약과제
06MM2300, SDR 단말용 미들웨어 플랫폼 개발, 박남훈
초록
In this paper, we capture the impact of an ARQ scheme in the MAC/LLC layer with a forward error-correcting code on upper-layer packet transmissions over a Markovian channel by examining the performance of a single service data unit which may be either a TCP segment or a UDP packet. We assume that the ACK/NACK delay of ARQ blocks belong to a single service data unit is less than the transmission period of each ARQ block. The performance measures of a single service data unit transmission are derived in terms of the transmission success and failure probabilities given a retransmission time-out value, retransmission timeout probability and the moments of transmission delay. Further, the queueing performance of a service data unit transmitter is also presented by varying average received signal-to-noise ratio, mobile velocity, number of ARQ blocks needed to transmit a single service data unit, number of retransmissions for each ARQ block and error-correcting capability applied to an ARQ block. From numerical examples, renegotiation between a serving base station and a mobile station is needed, when the mobile station is far from the serving base station in order that a service data unit is fragmented into a larger number of ARQ blocks in order to apply high errorcorrecting capability for each one. © 2006 IEEE.
KSP 제안 키워드
ARQ Blocks, Belong to, Correcting capability, Error correcting code(ECC), Failure Probability, Mobile station(MS), Numerical examples, Performance measures, Service data, Serving Base Station(SBS), Signal noise ratio(SNR)