| The anti-jamming (AJ) performance of a spectrally shaped multicarrier spread spectrum modulation scheme is investigated in this paper. The spectral shaping of the our proposed scheme is accomplished via the use of sinusoidal chip waveforms. All subcarriers use the same data rate, processing gain, and bit energy. By using appropriately selected sinusoidal chip waveforms, the transmitted energy is distributed evenly in two sidebands. Specifically, half of the energy is transmitted through a lower sideband (LSB) and the other half through an upper sideband (USB). Since the jammer can only put its energy at some portion of the whole bandwidth, these two independent sideband signals, when combined at the receiver, improve the anti-jammer performance of the system. In this paper we investigate the bit error ratio (BER) performance of our proposed scheme in the presence of narrow band interference (NBI), modeled by either an M-ary PSK or an M-ary QAM signal. The single-user BER performance of our proposed scheme in an AWGN channel is investigated to highlight the superior AJ capability of our proposed scheme. The AJ performance of our proposed scheme and that for conventional MC-DS-SS with rectangular chip waveforms is compared under the condition that both systems have the same data rate, transmission power, and bandwidth.
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| Wenhui Xiong was born in Chengdu, China. He received the B.S. and M.S. degrees from the University of Electronic Science and Technology of China, Chengdu, in 1999 and 2002, respectively, both in electrical engineering. He is currently working toward the Ph.D. degree in the School of Electrical Engineering and Computer Science at Ohio University, Athens. His general area of interest is wireless communication.
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