Title :
Diversity performance of multi-code multi-carrier CDMA communications systems
Author :
Ugweje, Okechukwu C. ; Lee, JinWoo ; Efthymoglou, George
Author_Institution :
Dept. of Electr. & Comput. Eng., Akron Univ., OH, USA
Abstract :
A communication system combining multi-code and multi-carrier techniques is analyzed in this paper. The system is denoted as multi-code multi-carrier CDMA (MC/MC-CDMA). The analytical framework is presented and system performance is evaluated by means of bit error rate (BER) for different system parameters and diversity techniques. The system is suitable for multi-rate services that use multi-codes and high data rate transmissions that employ multi-carriers, as it is proposed for the future generation wireless systems. The effect of changing the number of codes, carriers, users and diversity branches on system performance is investigated. Furthermore, the derived BER expressions quantify the amount of performance improvement achieved by using different diversity schemes.
Keywords :
code division multiple access; diversity reception; error statistics; radio networks; BER; bit error rate; diversity performance; generation wireless systems; high data rate transmissions; multicode multicarrier CDMA communications systems; multirate services; system parameters; Bandwidth; Bit error rate; Data communication; Diversity reception; Fading; Intersymbol interference; Multiaccess communication; Multicarrier code division multiple access; Performance analysis; System performance;
Conference_Titel :
Wireless Networks, Communications and Mobile Computing, 2005 International Conference on
Print_ISBN :
0-7803-9305-8
DOI :
10.1109/WIRLES.2005.1549451
