Title :
Phase sequence construction for near optimum SLM
Author_Institution :
Dept. of Electr. & Electron. Eng., Xi´an Jiaotong-Liverpool Univ., Suzhou, China
Abstract :
High Peak-to-Average Power Ratio (PAPR) is a major drawback of multicarrier transmission systems such as OFDM. Among various techniques proposed for PAPR reduction, SeLective Mapping (SLM) is a stochastic approach with the potential to achieve maximum PAPR reduction via phase optimization. In this paper, a measurable criterion for determining suitable phase sequences for near optimum SLM is derived, following which a large number candidates in the form of MPSK sequences are formulated to achieve near optimum SLM performance. A low cost search algorithm for the transmitter is also investigated.
Keywords :
OFDM modulation; optimisation; phase shift keying; sequences; stochastic processes; MPSK sequence; OFDM; PAPR; multicarrier transmission system; near optimum SLM performance; peak-to-average power ratio; phase optimization; phase sequence; phase sequence construction; search algorithm; selective mapping; stochastic approach; transmitter; Conferences; Peak to average power ratio; Signal processing; Signal processing algorithms; Transmitters; Wireless communication; OFDM; PAPR; SLM;
Conference_Titel :
Signal Processing Advances in Wireless Communications (SPAWC), 2014 IEEE 15th International Workshop on
Conference_Location :
Toronto, ON
DOI :
10.1109/SPAWC.2014.6941832
