Title :
Performance analysis of hybrid ARQ protocols in a slotted direct-sequence code division multiple-access network: jamming analysis
Author :
Hanratty, Joseph M. ; Stüber, Gordon L.
Author_Institution :
US Army Inst. for Res. in Manage. Inf., Commun. & Comput. Sci., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
An examination is made of the performance of type-I hybrid ARQ (automatic repeat request) protocols in a slotted direct-sequence CDMA (code-division multiple access) network operating in a hostile jamming environment. The network consists of an arbitrary number of transceivers arranged in a paired-off topology. The traffic arrival process is derived by means of a Markov model. Throughput-delay expressions are derived in terms of the channel cutoff rate and capacity. The effects of jammer state information are discussed. Network design parameters are identified and their dependency on system parameters is examined in detail. It is shown that, for a given population size, traffic intensity, and bit energy/jammer noise ratio, there is an optimal probability of retransmission, code rate, and processing gain that maximizes network performance in the presence of worst-case pulse jamming
Keywords :
code division multiple access; delays; digital radio systems; error detection; jamming; packet switching; probability; radio networks; spread spectrum communication; telecommunication channels; telecommunication traffic; Markov model; SSMA; automatic repeat request; bit energy/jammer noise ratio; channel capacity; channel cutoff rate; code division multiple-access network; code rate; hostile jamming environment; hybrid ARQ protocols; jammer state information; jamming analysis; network design parameter; optimal probability; paired-off topology; performance analysis; population size; processing gain; retransmission; slotted direct-sequence CDMA; system parameters; throughput analysis; traffic arrival process; traffic intensity; transceivers; type-I; Access protocols; Automatic repeat request; Jamming; Multiaccess communication; Network topology; Performance analysis; Signal to noise ratio; Telecommunication traffic; Traffic control; Transceivers;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
