A novel algorithm with a new adaptive modulation form to improve the performance of OFDM for 4G systems

• Main Authors: Ismail Al-kebsi, Ibrahim, Ismail, Mahamod, Jumari, Kasmiran, Rahman, T. A., El Saleh, Ayman A.
• Format: Book Section
• Published: IEEE Computer Society 2009
• Subjects: QA75 Electronic computers. Computer science
• Online Access: http://eprints.utm.my/id/eprint/11837/; http://dx.doi.org/10.1109/ICFCC.2009.22
• Institution: Universiti Teknologi Malaysia

This paper tries to present a new form of adaptive modulation which has the ability of using the high order modulation schemes such as 256-QAM and 128-QAM at low SNR values such as 2, 4 and 8 dB in order to enhance the data rate without degrading the SER performance especially at low SNR values. Thi...