标题：PAPR Reduction in OFDM: SLM-based Scrambling without Explicit Side Information for PSK Inputs
作者：Wang, Lingyin; Liu, Ju; Liu, Jingkai
作者机构：[Wang, Lingyin; Liu, Ju] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.; [Wang, Lingyin; Liu, Ju] Southeast Univ, Natl Mobil 更多
会议名称：7th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM)
会议日期：SEP 23-25, 2011
来源：2011 7TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING (WICOM)
关键词：OFDM; PAPR; scrambling; constellations
摘要：In this paper, a scrambling scheme based on selected mapping (SLM) without explicit side information for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) employing phase shift keying (PSK) is proposed. Different from phase weighting process employing complex multiplications in SLM, simple scrambling process is implemented in proposed scheme, and the side information is reliably associated inside the data block by using signal constellations in different shapes. Simulation results show that, compared with optimal SLM (O-SLM), proposed scheme can obtain the same performance for PAPR reduction and better error bit ratio (BER) performance.