Title :
Peak-to-average power-ratio reduction for OFDM systems based on method of conditional probability and coordinate descent optimization
Author :
Kou, Y.J. ; Lu, W.-S. ; Antoniou, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC
Abstract :
A new constellation extension technique for peak-to-average power-ratio reduction (PAPR) in orthogonal frequency-division multiplexing systems is proposed. Two new algorithms for PAPR reduction are developed by applying the so-called method of conditional probability (MCP) and coordinate descent optimization (CDO). Our simulations demonstrate that the proposed algorithms outperform several existing algorithms and the performance can be further improved by combining the MCP, CDO, and the selective mapping algorithms
Keywords :
OFDM modulation; optimisation; probability; CDO algorithms; MCP algorithms; OFDM systems; PAPR; conditional probability method; constellation extension technique; coordinate descent optimization; orthogonal frequency-division multiplexing systems; peak-to-average power-ratio reduction; selective mapping algorithms; Baseband; Data communication; Frequency division multiplexing; Nonlinear distortion; OFDM modulation; Optimization methods; Peak to average power ratio; Power amplifiers; Signal mapping; System performance;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693493
