Title :
Parallel acquisition of spread-spectrum signals with antenna diversity
Author :
Rick, Ronald R. ; Milstein, Laurence B.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
fDate :
8/1/1997 12:00:00 AM
Abstract :
The use of antenna diversity is investigated for improving the parallel acquisition performance of a direct-sequence spread-spectrum signal in both flat and frequency-selective fading channels. Noncoherent combining techniques are analyzed because coherent diversity techniques, such as maximal ratio combining, cannot be employed prior to initial acquisition. A major application of this work is to cellular communications
Keywords :
Rayleigh channels; Rician channels; antenna arrays; cellular radio; code division multiple access; diversity reception; land mobile radio; pseudonoise codes; spread spectrum communication; synchronisation; antenna diversity; cellular communications; direct-sequence spread-spectrum signal; flat fading channels; frequency-selective fading channels; noncoherent combining techniques; parallel acquisition; performance; spread-spectrum signals; Delay lines; Diversity reception; Frequency diversity; Frequency-selective fading channels; Multiple access interference; Random variables; Receiving antennas; Signal resolution; Spread spectrum communication; Testing;
Journal_Title :
Communications, IEEE Transactions on
