Dissertation/Thesis Abstract

Combined scheme for cooperative spectrum sensing in wireless networks
by Polimetla, Sasidhar, M.S., California State University, Long Beach, 2016, 26; 10102610
Abstract (Summary)

The effectiveness of cognitive radio systems depends mainly on the techniques used for spectrum sensing. The main aim of cognitive radio is effective spectrum utilization by sharing the spectrum with secondary users when a primary user is absent. This project uses the periodogram and multi-taper methods, which are optimized to enhance the receiver operating characteristics. The cooperative sensing techniques have been combined using weights based on the distance to the primary user in order to achieve improved performance. The probability of detection and probability of false alarm have been derived using the optimized methods. By incorporating multi-antenna techniques for better reception and with prior knowledge of the primary user signal, it is shown that spectrum performance has been improved.

Indexing (document details)
Advisor: Chassiakos, Anastasios
Commitee: Ary, James, Khoo, I-Hung
School: California State University, Long Beach
Department: Electrical Engineering
School Location: United States -- California
Source: MAI 55/04M(E), Masters Abstracts International
Subjects: Electrical engineering
Keywords: Cooperative, Networks, Spectrum, Wireless
Publication Number: 10102610
ISBN: 978-1-339-66292-3
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