Title :
Orthogonal Frequency Division Multiple Acces System Analysis Using Bit Error Rate
Author :
Ahmed, Alaaeldin B. ; Osman, Waiel E. ; Rahman, Tharek Abd
Author_Institution :
Eng. Dept., Garden City Coll. for Sci. & Technol., Khartoum, Sudan
Abstract :
Orthogonal frequency division multiple access (OFDMA) is a multi-carrier transmission technique that has been recently recognized as an excellent method for high speed bi-directional wireless data communication and it is one of the strong candidates as multiple access technique for the next generation of downlink receivers In this paper we aim to investigate the effect of fading channel on the performance of the IEEE 802.16e based OFDMA system with different code rate and modulation schemes using the bit-error rates (BER) versus the bit energy-to-noise density ratio (Eb/No) curves. The obtained graph can be used to set threshold signal to noise ratio (SNR), so that adaptive modulation schemes can be used to attain highest transmission speed with a target BER.
Keywords :
OFDM modulation; broadband networks; data communication; error statistics; fading channels; graph theory; mobile radio; modulation coding; radio access networks; IEEE 802.16e; adaptive modulation; bi-directional wireless data communication; bit error rate; fading channel; multicarrier transmission technique; multiple access technique; orthogonal frequency division multiple access system; Bidirectional control; Bit error rate; Data communication; Downlink; Error analysis; Fading; Frequency conversion; Modulation coding; Signal to noise ratio; Wireless communication; 4G; IEEE 802.16e; OFDMA;
Conference_Titel :
Next Generation Mobile Applications, Services and Technologies, 2009. NGMAST '09. Third International Conference on
Conference_Location :
Cardiff, Wales
Print_ISBN :
978-0-7695-3786-3
DOI :
10.1109/NGMAST.2009.57
