Title :
Partial companding as a PAPR reduction technique of an OFDM system
Author :
Haque, Tabassum ; Mahmuda, Subaha ; Ahmed, Feroz
Author_Institution :
Sch. of Eng. & Comput. Sci., Indep. Univ. Bangladesh, Dhaka, Bangladesh
Abstract :
In this paper, a new technique of BER minimization in a companding based PAPR reduction scheme is proposed. In this approach, the conventional companding scheme is only applied for those OFDM signals whose amplitude exceeds a predefined threshold level, which results in lower BER and lower computational time. Though for the proposed scheme, improvement of the PAPR is less than the conventional companding technique, however, BER performance is improved significantly.
Keywords :
OFDM modulation; compandors; error statistics; BER minimization; OFDM signals; OFDM system; companding based PAPR reduction scheme; computational time; partial companding; predefined threshold level; Bit Error Rate (BER); Complementary Cumulitive Distribution Function (CCDF); Orthogonal Frequency Division Multiplexing (OFDM); Peak-to-Average Power Ratio (PAPR);
Conference_Titel :
Informatics, Electronics & Vision (ICIEV), 2012 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4673-1153-3
DOI :
10.1109/ICIEV.2012.6317490