Secure Transmission on the Multi-Terminal Two-Hop Untrusted Relay with Lattice Coding and Decoding

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Doaei, Jalal | 2019

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 52661 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Behroozi, Hamid
Abstract:
Analysis of the achievable secrecy rate in channels has always been of significant importance.The importance further increased probably due to development of new generations of communication networks in recent years. The secrecy rate refers to the maximum transmission rate for which transmitted data during the transmission process is guaranteed to be error-free and not sniffable. In this thesis, we will investigate the two-hop channel with untrusted relay using lattice coding. In other words, the purpose of this study is to provide a decoder-encoder architecture based on lattice codes, in order to obtain a secrecy rate in a channel where two pairs of transmitter-receivers attempt to exchange information between them and the relay secretly. Since the relay modeled in this work is assumed to be untrusted, the data required to be hidden from it
Keywords:
Secrecy Rate ; Lattice Codes ; Untrusted Relay ; Compute and Forward ; Two-Hop Relaying

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