Title :
PAPR distribution analysis of OFDM signals with Partial Transmit Sequence
Author :
Alhasson, Bader Hamad ; Matin, Mohammad A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Denver, Denver, CO, USA
Abstract :
Third Generation Partnership Project (3GPP) LTE has adopted OFDMA as the uplink multiple access scheme. One of the major drawbacks is the high PAPR. Not only is the performance of PAPR with PTS technique influenced by the number of subblocks and the phase vector but also by the subblock partitioning. The Partial Transmit Sequence (PTS) technique suffers from the search complexity of finding the optimum set of phase vectors. We propose a suboptimal combination algorithm that reduces the search complexity. The number of commutations in the suboptimal combination algorithm is much lower than the required by the original PTS technique. In this paper, we propose a suboptimal combination algorithm to reduce the searching complexity of finding the optimum set of vectors to minimize PAPR. The performance of PAPR utilizing the PTS technique improves by the use of the proposed suboptimal combination algorithm.
Keywords :
3G mobile communication; Long Term Evolution; OFDM modulation; frequency division multiple access; sequences; 3G partnership project; 3GPP; LTE; OFDM signals; OFDMA; PAPR distribution analysis; PTS technique; partial transmit sequence; phase vector; subblock partitioning; suboptimal combination algorithm; uplink multiple access scheme; Adaptive optics; Fading; Frequency division multiaccess; Lead; Peak to average power ratio; Stimulated emission; Long-term-evolution (LTE); Orthogonal frequency division multiplexing (OFDM); Partial Transmit Sequence (PTS); peak-to-average power ratio (PAPR);
Conference_Titel :
Computer and Information Technology (ICCIT), 2011 14th International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-61284-907-2
DOI :
10.1109/ICCITechn.2011.6164869