Title :
Multi User Orthogonal Frequency division Multiple Access (MU-OFDMA) performances in AWGN and fading channels
Author :
Craciunescu, Razvan ; Halunga, Simona ; Fratu, Octavian ; Vizireanu, Nicolae
Author_Institution :
Telecommun. & Inf. Technol., Univ. Politeh. of Bucharest, Bucharest, Romania
Abstract :
This paper presents the performances of BPSK, QPSK, 16QAM, 64QAM /Multi User Orthogonal Frequency division Multiple Access (MU-OFDMA) and Orthogonal frequency-division multiplexing (OFDM) systems performances in terms of Bit Error Rate (BER) as a function of Signal to Noise Ratio (SNR) using different lengths of Cycling Prefix. The simulations were carried out over AWGN and Rayleigh fading channels, and the results for the two systems have been compared. Based on those results, a number of conclusions have been highlighted in the last chapter of the paper.
Keywords :
AWGN channels; OFDM modulation; Rayleigh channels; code division multiple access; error statistics; frequency division multiple access; multiuser channels; quadrature amplitude modulation; quadrature phase shift keying; spread spectrum communication; 16QAM; 64QAM; AWGN channels; BPSK; MU-OFDMA; OFDM systems performances; QPSK; Rayleigh fading channels; SNR; bit error rate; cycling prefix; multiuser orthogonal frequency division multiple access; orthogonal frequency-division multiplexing systems; signal to noise ratio; AWGN channels; Bit error rate; Fading; Modulation; Multiaccess communication; OFDM; Signal to noise ratio; Cyclic Prefix; Direct Sequence CDMA; MU-OFDMA; OFDM;
Conference_Titel :
Telecommunication in Modern Satellite, Cable and Broadcasting Services (TELSIKS), 2013 11th International Conference on
Conference_Location :
Nis
Print_ISBN :
978-1-4799-0899-8
DOI :
10.1109/TELSKS.2013.6704924
