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NPerformance Analysis of Hybrid ARQ Protocols in a Slotted Code Division Multiple-Access Network

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Abstract

'3 ABSTRACT '.AAxinrum20wpcs) A link throughput-delay analysis is presented for a slotted direct-sequence spread-spectrum multiple-access packet radio network (PRN) operating in the presence of background noise, multiple-access inter-furence, and pulsed jammer noise. The PRN is comprised of an arbitrary number of itull-duplex radio units arranged in a paired-off topology. Slotted ALOHA random access is used in conjunction with CDMA for channel access and a type I hybrid ARQ is used for error control. Expression are derived for the link t hrough put-delay in terms of the channel cutoff rate and capacity. With the friendly objective of maxi-rnuizing the link throughput, and the enemy objective of minimizing the link throughput, the dependency of the optimal retransmission probability, processing gain, code rate, and jamming fraction on the popu-lation size, traffic intensity, bit energy-to-background-noise ratio, and hit ener gy- to-j ammer- noise ratio is examined in detail. It is shown that a properly designed (optimized) PRN using random-access CDM

Year: 1989
OAI identifier: oai:CiteSeerX.psu:10.1.1.944.6583
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