Anti-jamming performance of multi-carrier spread spectrum with constant envelope

Author

Tan, Jun ; Stüber, Gordon L.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

2003

fDate

11-15 May 2003

Firstpage

743

Abstract

A special complex sequence, called a complex quadratic sequence, is proposed as the frequency-spreading sequence for multicarrier spread spectrum (MC-SS) modulation scheme. The resulting MC-SS signal has constant envelope in both time and frequency domains. This feature provides flexibility for the MC-SS system to mitigate the effects of both partial-bond jamming and pulse jamming. For partial-band jamming, the MC-SS system with frequency domain detection and combining can outperform DS/SS. for pulse jamming, the MC-SS system with time-domain detection and combining can outperform MC-SS systems. The proposed MC-SS signal has a constant envelope thus reducing linearity requirements on the power amplifier. A simple jammer state estimation scheme for both partial-band and pulse jamming channel is also proposed and analyzed. Furthermore multi-access with the MC-SS system is possible by assigning users with different cyclic-shifts of the complex quadratic sequence. Simulation results are provided to verify our analysis.

Keywords

jamming; pulse modulation; spread spectrum communication; state estimation; antijamming performance; complex quadratic sequence; constant envelope; frequency domain; jammer state estimation; multicarrier spread spectrum modulation; partial band jamming; pulse jamming; time domain; Binary phase shift keying; Frequency domain analysis; Intersymbol interference; Jamming; OFDM; Power amplifiers; Pulse amplifiers; Quadrature phase shift keying; Spread spectrum communication; State estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204272

Filename

1204272