Title :
Performance of generalized lapped transform (GLT) based CDMA system in a multipath fading channel
Author :
Nallanathan, A. ; Chan, S.C. ; Ng, T.S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
We investigate the performance of a new class of spreading codes in a direct sequence spread spectrum (DSSS/CDMA) system. The spreading and despreading codes are generated from a biorthogonal filter bank whose outputs are of continuous values. The performance of the proposed codes is compared with the Gold codes in a Rayleigh fading multipath channel. Simulation results show that the proposed codes yield lower BER performance than the Gold codes when the number of users is reasonably large
Keywords :
Rayleigh channels; channel bank filters; code division multiple access; filtering theory; interference suppression; land mobile radio; multipath channels; multiuser channels; pseudonoise codes; radiofrequency interference; spread spectrum communication; transforms; BER performance; CDMA system; DSSS/CDMA system; Gold codes; Rayleigh fading multipath channel; biorthogonal filter bank; despreading codes; direct sequence spread spectrum; generalized lapped transform; mobile communication channel; multipath interference; multiuser interference; performance; simulation results; spreading codes; Discrete transforms; Fading; Filter bank; Gold; Interference; Multiaccess communication; Multipath channels; Signal processing; Signal synthesis; 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.1998.726234
