Title :
Performance of multiple-dwell code acquisition with diversity for multicarrier DS-CDMA systems on multipath fading channels
Author :
Sheen, Wern-Ho ; Chang, Ming-Jou ; Wang, Hum-Chun ; Wu, Cheng-Shong
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi, Taiwan
Abstract :
Multiple-dwell code acquisition with diversity is investigated for direct-sequence code division multiple access (DS-CDMA) multicarrier systems over multipath Rayleigh fading channels. Both the subband overlapped and non-overlapped multicarrier DS-CDMA systems are considered. A new analytical method is developed to evaluate the mean acquisition time to any desired accuracy. Numerical results illustrate the effects of the other user interference, the number of carriers, the operating signal to noise ratio on the mean acquisition time performance
Keywords :
Rayleigh channels; code division multiple access; diversity reception; multipath channels; multiuser channels; pseudonoise codes; radiofrequency interference; spread spectrum communication; synchronisation; PN codes; correlator output statistics; direct-sequence code division multiple access; diversity; mean acquisition time performance; multicarrier DS-CDMA systems; multipath Rayleigh fading channels; multipath fading channels; multiple-dwell code acquisition; nonoverlapped multicarrier systems; other user interference; subband overlapped multicarrier systems; Bandwidth; Fading; Interference; Land mobile radio; Multiaccess communication; OFDM; Personal communication networks; Protection; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.723832
