Share Email Print
cover

Proceedings Paper

Secure OFDM communications based on hashing algorithms
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In this paper we propose an OFDM (Orthogonal Frequency Division Multiplexing) wireless communication system that introduces mutual authentication and encryption at the physical layer, without impairing spectral efficiency, exploiting some freedom degrees of the base-band signal, and using encrypted-hash algorithms. FEC (Forward Error Correction) is instead performed through variable-rate Turbo Codes. To avoid false rejections, i.e. rejections of enrolled (authorized) users, we designed and tested a robust hash algorithm. This robustness is obtained both by a segmentation of the hash domain (based on BCH codes) and by the FEC capabilities of Turbo Codes.

Paper Details

Date Published: 8 October 2007
PDF: 10 pages
Proc. SPIE 6741, Optics and Photonics for Counterterrorism and Crime Fighting III, 67410X (8 October 2007); doi: 10.1117/12.738319
Show Author Affiliations
Daniele Blasi, Univ. degli Studi di Roma Tre (Italy)
Patrizio Campisi, Univ. degli Studi di Roma Tre (Italy)
Alessandro Neri, Univ. degli Studi di Roma Tre (Italy)


Published in SPIE Proceedings Vol. 6741:
Optics and Photonics for Counterterrorism and Crime Fighting III
Colin Lewis, Editor(s)

© SPIE. Terms of Use
Back to Top