Title :
Performance of a modulation scheme estimation method for adaptive modulation based COFDM-CDMA systems
Author :
Chatterjee, S. ; Ahmed, K.M. ; Fernando, W.A.C.
Author_Institution :
Telecommun. Program, Asian Inst. of Technol., Pathumthani, Thailand
Abstract :
The estimation of the modulation scheme is one of the vital tasks in the receiver of an adaptive modulation based system. In this paper, we propose and analyze the performance of a simple modulation scheme estimation method in the context of adaptive modulation based coded OFDM-CDMA systems in Rayleigh fading channels. Simulation results show that the method works error free for one user in the system at a channel condition of around 12 dB, and up to a maximum of 13 users at a channel condition of around 30 dB.
Keywords :
OFDM modulation; Rayleigh channels; adaptive modulation; code division multiple access; Rayleigh fading channel; adaptive modulation based system receiver; blind modulation scheme estimation algorithm; coded COFDM-CDMA systems; Adaptive systems; Bandwidth; Binary phase shift keying; Digital modulation; Fading; Modulation coding; Multiaccess communication; Quadrature phase shift keying; Radio transmitters; Wireless networks;
Conference_Titel :
Electrical and Computer Engineering, 2004. Canadian Conference on
Print_ISBN :
0-7803-8253-6
DOI :
10.1109/CCECE.2004.1344979
