Title :
Direct sequence spread spectrum serial acquisition in a nonselective and frequency selective Rician fading channel
Author :
Sourour, E. ; Gupta, S. ; Refai, W.
Author_Institution :
Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA
fDate :
30 Sep-3 Oct 1990
Abstract :
The mean acquisition time performance of a straight, serial-search direct-sequence spread spectrum (DS-SS) acquisition system, operating in nonselective and frequency-selective Rician fading channels is analyzed. The system was proposed by Polydoros and Weber (1984), and its performance is analyzed for a nonfading channel, at which all the cells that fall under hypothesis Ho are statically identical. This is not the case for the Rician fading channel. A signal flow graph for which the Ho cells are not identical is used to derive an expression for the mean acquisition time in terms of the probabilities of detection and false alarm. These probabilities are then derived for the nonselective and frequency selective Rician fading channels. The results show the effect of the channel and system parameters on the mean acquisition time performance
Keywords :
fading; probability; spread spectrum communication; telecommunication channels; Rician fading channel; acquisition system; channel parameters; detection probability; direct sequence spread spectrum; false alarm probability; frequency selective channel; mean acquisition time; nonselective channel; serial acquisition; serial search; signal flow graph; system parameters; Circuits; Delay; Fading; Flow graphs; Frequency; Probability; Rician channels; Signal analysis; Spread spectrum communication; Uncertainty;
Conference_Titel :
Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/MILCOM.1990.117407
