Title :
Performance and analysis of PAPR reduction schemes based on improved low complexity four partial transmit sequences and constellation methods
Author :
Renuka, N. ; SathyaSaiRam, M. ; Naganjaneyulu, P.V.
Author_Institution :
Dept. of Electron. & Commun., RVR & JC Coll. of Eng., Guntur, India
Abstract :
The major drawback of OFDM is the high PAPR which in results, increases the complexity of Analog to Digital (A/D) and Digital to Analog (D/A) converters and also reduces the efficiency of RF High Power Amplifier (HPA). High PAPR values can also lead to serious problems such as severe power penalty at the transmitter, which is not affordable in portable wireless systems where terminals are powered by battery. Here in this letter we proposed analysis of PAPR by using an improved low complexity four partial transmit sequences (ILCF-PTS) and compared with the existing techniques such as original OFDM, selective level mapping (SLM), active constellation extension (ACE) and also with adaptive active constellation extension (AACE). Experimental analysis shown that the IF-PTS scheme is superior to previous PAPR reduction techniques.
Keywords :
OFDM modulation; analogue-digital conversion; computational complexity; digital-analogue conversion; radiocommunication; ACE; HPA; ILCF-PTS; OFDM; PAPR reduction schemes; RF efficiency; SLM; active constellation extension; adaptive active constellation extension; analog to digital converter; digital to analog convertor; high power amplifier; low complexity improvement; partial transmit sequences; peak to average power ratio; portable wireless systems; selective level mapping; Bandwidth; Complexity theory; Educational institutions; Partial transmit sequences; Peak to average power ratio; Vectors;
Conference_Titel :
Signal Processing And Communication Engineering Systems (SPACES), 2015 International Conference on
Conference_Location :
Guntur
DOI :
10.1109/SPACES.2015.7058302