Title :
The performance analysis of a two dimensional CDMA system for frequency selective channels
Author :
Xing, Hongnian ; Rinne, Jukka
Author_Institution :
Inst. of Digital Media, Tampere Univ. of Technol., Finland
Abstract :
In this paper, a two-dimensional CDMA system is presented and its performance is analyzed and simulated (in the downlink) in a multipath fading environment. By using the spreading codes in both the time and frequency domains, the proposed system has a good ability to tolerate high interference from other users. The reason is that the code orthogonality between different users can be well preserved in both domains, especially in the time invariant and slow fading case. With the aid of using guard intervals, the requirement on the accuracy of the time synchronization is also controllable
Keywords :
code division multiple access; fading channels; frequency-domain analysis; interference suppression; intersymbol interference; multipath channels; multiuser channels; radio links; spread spectrum communication; synchronisation; time-domain analysis; 2D CDMA system; ISI; code orthogonality; downlink; frequency domain; frequency selective channels; guard intervals; interference tolerance; multipath fading environment; performance analysis; simulation; slow fading; spread spectrum communication; spreading codes; time domain; time invariant fading; time synchronization; Fading; Frequency conversion; Frequency domain analysis; Interference; Multiaccess communication; Multicarrier code division multiple access; Multipath channels; OFDM; Performance analysis; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776447
