Peak-to-Average Power Ratio Reduction based on Optimized Phase Shift Technique

被引：0

作者：

Mohammed, Muamer N. ^{[1
,2
]}

Nahar, Ali Kerem ^{[3
]}

Abdalla, Ahmed N. ^{[4
]}

Hammood, Omar A. ^{[1
,5
]}

机构：

[1] Univ Malaysia Pahang, Fac Comp Syst & Software Engn, Kuantan 26300, Pahang, Malaysia

[2] Univ Malaysia Pahang, IBM Ctr Excellence, Kuantan 26300, Pahang, Malaysia

[3] Univ Technol Baghdad, Dept Elect Engn, Baghdad, Iraq

[4] Univ Malaysia Pahang, Ctr Excellence Adv Res Fluid Flow, Kuantan 26300, Pahang, Malaysia

[5] Bayan Univ, Dept Comp Sci, Gulan St Intersect Bahrka Doseid Intersect, Arbil, Iraq

来源：

2017 17TH INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES (ISCIT) | 2017年

关键词：

OFDM; PTS; SLM; Peak to average power ratio; PARTIAL TRANSMIT SEQUENCES; OFDM SYSTEMS; SIDE INFORMATION; SIGNALS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Orthogonal Frequency Division Multiplexing (OFDM) with Multi-Carrier (MC) system, technique has drawn significant interests in recent years. The major drawback is high Peak to Average Power Ratio (PAPR) is the phase factors optimization in terms of multiplications and complex additions. In this paper, an optimized phase shift (OPS) technique based signal scrambling is proposed to reduce PAPR in OFDM systems. The pilot phase signal is chosen by OPS technique, while the search algorithm is used to solve the convex optimization problem. The IEEE 802.11a standard used to test the in term of transmitted signal of OFDM. The OPS is analyzed at different phase shift with a slight computational complexity. The simulation result shows that the OSP at 1.5 dB proved significant at approximately 84.8% and 71.8% PAPR reduction when compared with PTS and SLM techniques, respectively. In addition, the best phase-shift factor was selected to reduce the cost of computational complexity.

引用

页数：6

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