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Title: ML-based follower jamming rejection in slow FH/MFSK systems with an antenna array
Authors: Ko, C.C. 
Nguyen-Le, H.
Huang, L.
Keywords: Antenna array
Frequency hopping (FH)
Interference cancellation
Maximum likelihood (ML)
Partial-band jammer
Quasi-static flat fading
Issue Date: 2008
Citation: Ko, C.C., Nguyen-Le, H., Huang, L. (2008). ML-based follower jamming rejection in slow FH/MFSK systems with an antenna array. IEEE Transactions on Communications 56 (9) : 1536-1544. ScholarBank@NUS Repository.
Abstract: The jamming robustness of frequency hopping (FH) systems with M-ary frequency shift keying (MFSK) modulation may be potentially neutralized by a follower partial-band jammer. In this paper, a maximum likelihood (ML)-based algorithm that uses a two-element array is proposed for joint follower jamming rejection and symbol detection in slow FH/MFSK systems over quasi-static flat Rayleigh fading channels. The algorithm is derived by treating both the received jamming components and the unknown data symbols as deterministic quantities to be jointly estimated in an integrated ML operation. In addition, an approximate expression for the symbol error rate (SER) of the proposed scheme is derived when BFSK signaling is employed in a jamming dominant scenario. Analytical and simulated results show that the proposed approach is able to remove jamming and outperform the conventional and sample matrix inversion (SMI)-based beam-formers in the presence of a follower partial-band jammer. © 2008 IEEE.
Source Title: IEEE Transactions on Communications
ISSN: 00906778
DOI: 10.1109/TCOMM.2008.060170
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