Title :
The Performance Analysis of AFH_OFDM System Based on Simulink
Author :
Wang, Fang ; He, Xu
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, ChengDu, China
Abstract :
OFDM (Orthogonal frequency-division multiplexing) is the key technology to 4G in the field of mobile communication. The theory of FH_OFDM and AFH_OFDM (Adaptive frequency hopping-Orthogonal frequency division multiplexing) systems is introduced firstly in this article, and the Simulink toolbox is used to set up the simulation model for AFH_OFDM system. In this paper, we compare the BER performance of FH_OFDM and OFDM systems in multi-path Rayleigh fading channel, and also compare the BER performance of AFH_OFDM system and FH_OFDM system in the condition of the broadband uniform noise and the bandlimited uniform noise. The simulation result shows that FH_OFDM system has a better BER performance than OFDM system in the condition of different interferences, and the BER performance of AFH_OFDM is better than FH_OFDM in the condition of the uniform noise.
Keywords :
OFDM modulation; Rayleigh channels; error statistics; radiofrequency interference; 4G; AFH_OFDM system; BER performance; adaptive frequency hopping; broadband uniform noise; interferences; mobile communication; multipath Rayleigh fading channel; orthogonal frequency-division multiplexing; performance analysis; Bit error rate; Frequency conversion; Frequency modulation; Mathematical model; OFDM; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040057
