Title :
4-phase M-ary CDMA signal design and fast detection algorithm for approximately synchronized mobile systems without co-channel interference
Author :
Suehiro, N. ; Imoto, T.
Author_Institution :
Inst. of Appl. Phys., Tsukuba Univ., Ibaraki
Abstract :
Suehiro has proposed a quadriphase signal design method for the uplink of cellular CDMA mobile communication systems. The designed signals work without co-channel interference when the systems are synchronized approximately. The designed signals are free from the influence of multipath signals within some delay. We assign plural quadriphase signals as M-ary signals for each user so that the information-transmission rate is increased. The property of without co-channel interference remains the same, but the multipath property becomes a little bit worse. Fast detection algorithms are also proposed for digital matched filter detection
Keywords :
cellular radio; channel capacity; code division multiple access; digital filters; filtering theory; matched filters; multipath channels; multiuser channels; radio links; signal detection; signal synthesis; synchronisation; 4-phase M-ary CDMA signal design; approximately synchronized mobile systems; cellular mobile communication systems; channel capacity; digital matched filter detection; fast detection algorithm; information-transmission rate; multipath property; quadriphase signal design method; uplink; Base stations; Channel capacity; Costs; Detection algorithms; Frequency synchronization; Interchannel interference; Matched filters; Mobile communication; Multiaccess communication; Signal design;
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.1998.726189
