Title :
A flexible multirate CDMA concept with multiuser detection
Author :
Hottinen, Ari ; Pehkonen, Kari
Author_Institution :
Nokia Res. Center, Irving, TX, USA
Abstract :
We propose a multirate coding and modulation concept for third generation wireless communication systems employing code division multiple access. The concept consists of a flexible coding method in which multiple services, with different quality requirements, can be multiplexed in one frame, and in which the data rate can vary dynamically on a frame by frame basis. Furthermore, in order to maximize the capacity we design the modulation so that multiuser detection can be efficiently implemented. Multiuser detection is used for providing acceptable capacity in a cell with multiple users with variable data rates. Simulation results related to the proposed multirate multiuser scheme are presented
Keywords :
cellular radio; channel capacity; code division multiple access; encoding; modulation; multiplexing; signal detection; GSM; cellular radio; code division multiple access; data rate; flexible coding method; multiple services; multiplexing; multirate CDMA; multirate coding; multirate modulation; multirate multiuser scheme; multiuser detection; service quality requirements; simulation results; third generation wireless communication systems; variable data rates; 3G mobile communication; Bit error rate; GSM; Mobile handsets; Modulation coding; Multiaccess communication; Multiuser detection; Speech; Telecommunication standards; Wireless communication;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Conference_Location :
Mainz
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563188
