Title :
Diversity performance of multicode spread spectrum CDMA system
Author :
Khorbotly, Sami A. ; Ugweje, Okechukwu C.
Author_Institution :
Dept of Electr. & Comput. Eng., Akron Univ., OH, USA
Abstract :
In this paper, multicode spread spectrum CDMA system is analyzed. The transmitter and receiver needed for this system are described and its performance is evaluated for different parameters and different diversity techniques. The channel is assumed to be a multipath slowly fading Nakagami channel. The performance of the system is evaluated in terms of its average bit error rate and is compared to that of the conventional single-code spread spectrum CDMA system. The performance of the system is obtained for three diversity schemes namely, selection diversity, equal gain combining and maximal ratio combining. The effect of changing the number of substreams, users, diversity branches, power level and Nakagami parameter are also investigated.
Keywords :
code division multiple access; data communication; diversity reception; error statistics; fading channels; multipath channels; radio receivers; radio transmitters; spread spectrum communication; bit error rate; equal gain combining; fading Nakagami channel; maximal ratio combining; multicode spread spectrum CDMA system; multipath channel; multirate data transmission; receiver; selection diversity technique; transmitter; wireless communication systems; Bit error rate; Data communication; Diversity reception; Fading; MIMO; Modulation coding; Multiaccess communication; Multimedia systems; Spread spectrum communication; Wireless communication;
Conference_Titel :
Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE
Print_ISBN :
0-7803-8344-3
DOI :
10.1109/WCNC.2004.1311407
