Dissertation/Thesis Abstract

Performance evaluation of PAPR in OFDM for UMTS-LTE system
by Gupte, Pinak, M.S., California State University, Long Beach, 2017, 52; 10251392
Abstract (Summary)

OFDM (Orthogonal Frequency Division Multiplexing) is an efficient modulation scheme widely used in digital communication systems. Although OFDM has advantages such as high bit rate, it is very important to address the drawback of high PAPR that results in signal degradation. Non-linearity of HPAs (High Power Amplifiers) results in out-of-band distortion which results in adjacent channel interference.

This project involved evaluation of a variety of PAPR reduction methods such as Clipping and Filtering, Selective Mapping, Interleaving and Constellation Shaping. After weighing the pros and cons, Constellation Shaping technique was studied and implemented using MATLAB. This report also includes implementation of UMTS-LTE (Universal Mobile Terrestrial System-Long Term Evolution) downlink layer using a reduction block to reduce PAPR. The algorithm is flexible enough for a variety of bandwidths and modulation schemes.

Indexing (document details)
Advisor: Kumar, Rajendra
Commitee: Aghnatios, Wajdi, Mozumdar, Mohammad
School: California State University, Long Beach
Department: Electrical Engineering
School Location: United States -- California
Source: MAI 56/03M(E), Masters Abstracts International
Subjects: Engineering
Publication Number: 10251392
ISBN: 978-1-369-48395-6
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