DocumentCode
700022
Title
Joint security and channel coding for OFDM communications
Author
Neri, Alessandro ; Blasi, Daniele ; Gizzi, Luca ; Campisi, Patrizio
Author_Institution
Dept. of Appl. Electron., Univ. of ROMA TRE, Rome, Italy
fYear
2008
fDate
25-29 Aug. 2008
Firstpage
1
Lastpage
5
Abstract
In this paper we propose an algorithm for joint authentication, integrity verification and channel coding, optimized for OFDM based communication systems. Joint security and channel coding is performed by means of a Shannon´s substitution-permutation scheme and a pseudo-random punctured Turbo Code, whose actual parameters are set in accordance to a private session key. User authenticity and message integrity are verified comparing the log-likelihood of the decoded ciphertext with a threshold, adapted to actual channel condition.
Keywords
OFDM modulation; channel coding; data integration; message authentication; private key cryptography; random codes; telecommunication security; turbo codes; OFDM communication system; Shannon substitution-permutation scheme; integrity verification; joint authentication; joint security and channel coding; message integrity; private session key; pseudorandom punctured Turbo code; user authenticity; Authentication; Cryptography; Joints; OFDM; Turbo codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Conference, 2008 16th European
Conference_Location
Lausanne
ISSN
2219-5491
Type
conf
Filename
7080554
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