New hybrid schemes for PAPR reduction in OFDM systems
Other Title(s)
طرق هجينة جديدة لتخفيض نسبة القدرة القصوى إلى المتوسط في أنظمة تقنية مضاعفة تقسيم التردد المتعامد
Joint Authors
al-Khawlani, Muhammad
Nukaai, Salim
Source
Journal of Science and Technology
Issue
Vol. 23, Issue 1 (30 Jun. 2018), pp.17-38, 22 p.
Publisher
University of Science and Technology Faculty of Computing and Engineering
Publication Date
2018-06-30
Country of Publication
Yemen
No. of Pages
22
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
The 3rd Generation Partnership Project (3GPP) introduced LTE to meet increasingly demands for communication services with high speed and quality.
LTE uses OFDM in the form of OFDMA in the downlink and SCFDMA in the uplink combined with MIMO offering high data rate, high capacity and immunity against multipath channels.
However, still the high PAPR of the LTE transmitted signal is the major problem affecting overall system performance degradation and power efficiency.
A plenty of research has been devoted to reduce the performance degradation due to the PAPR problem inherent to LTE OFDM systems.
A portion of the current techniques such companding methods have low-complexity, no constraint on modulation format and subcarrier size, good distortion and spectral properties; however, they have limited PAPR reduction capabilities.
This paper proposes seven new hybrid schemes including Zaddoff Chu Matrix Transform (ZCT) precoding and six modern companding methods; Rooting Companding (RCT), New Error Function Companding (NERF), Absolute Exponential Companding (AEXP), Logarithmic Rooting Companding (LogR), Cosine Companding (COS) and Tangent Rooting Companding (TanhR).
Furthermore, the seventh proposed hybrid scheme has been added incorporating ZCT precoding with new proposed companding called Advanced AEXP (AAEXP) companding.
The developed methods are combining properties of both ZCT & Compandings, and achieving superior PAPR performance and optimal BER.
Simulations results illustrate that the new seven proposed hybrid schemes achieve better PAPR reduction, and BER performance and the best achievement has been achieved by ZCT+AAEXP scheme.
American Psychological Association (APA)
Nukaai, Salim& al-Khawlani, Muhammad. 2018. New hybrid schemes for PAPR reduction in OFDM systems. Journal of Science and Technology،Vol. 23, no. 1, pp.17-38.
https://search.emarefa.net/detail/BIM-1314465
Modern Language Association (MLA)
Nukaai, Salim& al-Khawlani, Muhammad. New hybrid schemes for PAPR reduction in OFDM systems. Journal of Science and Technology Vol. 23, no. 1 (2018), pp.17-38.
https://search.emarefa.net/detail/BIM-1314465
American Medical Association (AMA)
Nukaai, Salim& al-Khawlani, Muhammad. New hybrid schemes for PAPR reduction in OFDM systems. Journal of Science and Technology. 2018. Vol. 23, no. 1, pp.17-38.
https://search.emarefa.net/detail/BIM-1314465
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 36-38
Record ID
BIM-1314465