Vector similarity-based detection scheme for multi-antenna FH/MFSK systems in the presence of follower jamming

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Vector similarity-based detection scheme for multi-antenna FH/MFSK systems in the presence of follower jamming

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Follower partial band jamming has been recognised as an efficient strategy to degrade the performance of frequency hopping (FH) systems. To alleviate this detrimental effect, a novel detection scheme for slow FH/M-ary frequency shift keying systems, which use two receive antennas in a quasi-static flat fading channel, is proposed. Specifically, using the principle of vector similarity, an area-based vector similarity metric is formulated to give an estimate of the unknown spatial correlation of the received jamming components at the two receive antennas. The jamming signal can then be removed in the symbol detection process. The improved performance of the new scheme is verified by using an analysis under a jamming dominant environment as well as simulated bit error rate results.

Inspec keywords: frequency hop communication; antenna arrays; frequency shift keying; error statistics; jamming; vectors; signal detection; correlation methods; fading channels

Other keywords: quasistatic flat fading channel; multiantenna FH system; partial band jamming; bit error rate; spatial correlation; area-based vector similarity-based detection scheme; M-ary frequency shift keying system; receive antennas; MFSK systems; symbol detection; frequency hopping system; jamming signal detection

Subjects: Antenna arrays; Signal detection; Radio links and equipment; Other topics in statistics; Algebra; Modulation and coding methods

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