Title :
Performance analysis of a hybrid acquisition system for DS spread spectrum
Author :
Van Der Meer, Andrew ; Liyana-Pathirana, Ranjith
Author_Institution :
Sch. of Eng. & Ind. Design, Univ. of Western Sydney, Penrith South DC, NSW, Australia
Abstract :
Hybrid acquisition systems for spread spectrum, that offer a trade-off between the fast acquisition time of parallel search schemes and the reduced hardware complexity of a serial search scheme are analysed in this paper. The presence of multiple acquisition cells, due to multipath fading and the size of the search cell being less than one PN chip, is assumed. Under this assumption a novel verification scheme for the hybrid acquisition system is developed and its performance in terms of mean acquisition time is evaluated. The performance of the proposed hybrid scheme is compared to that of the traditional hybrid scheme as well as the totally parallel phase cell search.
Keywords :
cellular radio; fading channels; multipath channels; radio receivers; search problems; signal detection; spread spectrum communication; DS spread spectrum; PN chip; acquisition time; hybrid acquisition system; mean acquisition time; multipath fading; multiple acquisition cells; parallel search schemes; performance analysis; reduced hardware complexity; search cell size; serial search scheme; verification scheme; Australia; Circuit testing; Delay; Design engineering; Fading; Hardware; Performance analysis; Signal generators; Spread spectrum communication; System testing;
Conference_Titel :
TENCON 2003. Conference on Convergent Technologies for the Asia-Pacific Region
Print_ISBN :
0-7803-8162-9
DOI :
10.1109/TENCON.2003.1273255
