Secret Communication Using Parallel Combinatory Spreading WFRFT

Author

Fang Xiaojie ; Sha Xuejun ; Li Yong

Author_Institution

Harbin Inst. of Technol., Harbin, China

Volume

19

Issue

1

fYear

2015

fDate

Jan. 2015

Firstpage

62

Lastpage

65

Abstract

In this letter, a parallel-combinatory-spreading-based weighted fractional Fourier transform (PCS-WFRFT) system aiming to guarantee physical layer (PHY) security is proposed. In this system, the transmission data are first divided into two groups. Based on the first group of data, a set of pseudonoise sequences is generated and then used to spread and encrypt the second group of data. In general, the proposed system is spread and dynamically encrypted by the message information itself, whereby both high bandwidth efficiency and high security performance are obtained. Numerical simulations are conducted to evaluate the performance of the proposed system in terms of the average bit error rate.

Keywords

Fourier transforms; cryptography; error statistics; radio networks; telecommunication security; PCS-WFRFT system; PHY security; bit error rate; guarantee physical layer; message information; numerical simulations; parallel combinatory spreading WFRFT; parallel combinatory spreading based weighted fractional Fourier transform; pseudonoise sequences; secret communication; Baseband; Bit error rate; Cryptography; Demodulation; Fourier transforms; Receivers; Parallel combinatory spreading; physical layer (PHY) security; weighted fractional Fourier transform (WFRFT);

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2014.2359200

Filename

6905765