Title :
Hybrid sequential acquisition schemes for noncoherent chip-asynchronous DS/SS systems
Author :
Hosangadi, Gurudutt S. ; Baum, Carl W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA
Abstract :
This paper investigates the design of hybrid chip-asynchronous acquisition schemes for direct sequence spread-spectrum communication systems. Both sequential and nonsequential tests are considered. Two novel sequential tests are considered that are based on the sequential probability ratio test (SPRT). Pipelining is used in the sequential schemes to ensure efficient utilization of the correlators. Simulation results show that the sequential tests perform significantly better than a nonsequential test
Keywords :
correlators; pipeline processing; probability; pseudonoise codes; spread spectrum communication; synchronisation; PN code; SPRT; correlators; direct sequence spread-spectrum communication; hybrid chip-asynchronous acquisition schemes; hybrid sequential acquisition schemes; noncoherent chip-asynchronous DS/SS systems; nonsequential tests; pipelining; sequential probability ratio test; sequential tests; simulation results; Additive noise; Circuit simulation; Circuit testing; Delay; Design engineering; Pipeline processing; Sequential analysis; Signal processing; Spread spectrum communication; Uncertainty;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.683024
