Title :
Hybrid acquisition scheme for CDMA systems: a new perspective
Author :
Doradla, V. ; Elhakeem, A.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A new hybrid search scheme for the initial acquisition of a long spread spectrum code composed of shorter concatenated signature codes is introduced. The new search scheme inherently contains a verification mode, thus eliminating the need of a separate verification process. We introduce a new concatenated signature coding and a new parallel acquisition scheme. Simulation results of the performance of the scheme in a multiple access environment is also presented
Keywords :
code division multiple access; concatenated codes; pseudonoise codes; search problems; signal detection; spread spectrum communication; telecommunication channels; CDMA systems; DS-SS; concatenated signature codes; concatenated signature coding; detection probability; direct sequence spread spectrum; hybrid acquisition; hybrid search; initial acquisition; long spread spectrum code; multiple access environment; nonfading channel; parallel acquisition; performance; simulation results; verification mode; Concatenated codes; Event detection; Fading; Filter bank; Gold; Matched filters; Multiaccess communication; Signal processing; Spread spectrum communication; Stacking;
Conference_Titel :
Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on
Conference_Location :
St. Johns, Nfld.
Print_ISBN :
0-7803-3716-6
DOI :
10.1109/CCECE.1997.608263
