Anti-jamming property of clustered OFDM for dispersive channels

Authors:
Hua Zhang;Ye Li
Affiliations:
School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA;School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA
Venue:
MILCOM'03 Proceedings of the 2003 IEEE conference on Military communications - Volume I
Year:
2003

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Abstract

Clustered OFDM has not only inherent ability to mitigate intersymbol interference (ISI) caused by delay spread of radio channels, but also great flexibility for multiple access. In this paper, we combine clustered OFDM with spread spectrum techniques to design anti-jamming modulation for tactical communications. We analyze the anti-jamming performance of clustered OFDM spread spectrum systems for dispersive channels and derive an exact bit-error-rate (BER) expression for uncoded systems. For coded systems with hard and soft-decision, we investigate their performance bounds. Our numerical results show that the proposed scheme provides great ability of anti-jamming and combating dispersive fading of radio channels.