Title :
Parallel acquisition in mobile DS-CDMA systems
Author :
Rick, Roland R. ; Milstein, Laurence B.
Author_Institution :
LSI Logic, Carlsbad, CA, USA
fDate :
11/1/1997 12:00:00 AM
Abstract :
This paper presents the performance of a direct sequence spread spectrum acquisition scheme in a mobile terrestrial communications system. The effects of fading, multipath, power control, shadowing, multiple access interference, out-of-cell interference, vehicle speed, voice activity, and sectorization are examined. The acquisition scheme uses noncoherent detection and a parallel search strategy. The analysis is done for the reverse link of a mobile code-division multiple-access (CDMA) system. The purpose of this paper is to derive the acquisition performance of a mobile communications system under practical assumptions, and give realistic capacity estimates based on acquisition performance criteria
Keywords :
cellular radio; code division multiple access; fading; land mobile radio; multipath channels; parallel processing; power control; pseudonoise codes; radio receivers; radiofrequency interference; search problems; spread spectrum communication; synchronisation; telecommunication control; acquisition performance; capacity estimates; code-division multiple-access; direct sequence spread spectrum acquisition scheme; fading; mobile DS-CDMA systems; mobile terrestrial communications system; multipath; multiple access interference; noncoherent detection; out-of-cell interference; parallel acquisition; parallel search strategy; performance; power control; reverse link; sectorization; shadowing; vehicle speed; voice activity; Detectors; Fading; Mobile communication; Multiaccess communication; Multiple access interference; Phase detection; Power control; Shadow mapping; Spread spectrum communication; Vehicles;
Journal_Title :
Communications, IEEE Transactions on
