Independent multitone jamming of FH/MFSK in Rician channels

In this paper, we derive exact expressions of the symbol error rate (SER) p erformance of orthogonal, frequency-hopped, noncoherent M-ary frequency-shi ft-keying (FH/MFSK) receivers in the presence of independent multitone jamm ing (MTJ), as well as thermal and other wideband Gaussian noises. Both the signal tones and the multiple jamming tones are affected independently by R ician fading. Both the slow-hopping and fast-hopping systems are considered . In our derivation, we exploit the fact that the multipath components of t he signal and jamming tones can be combined with the other Gaussian noises to form a single Gaussian process. Using this technique, we are able to obt ain compact exact SER expressions which can be computed efficiently. From t he computation results we provide physical explanations on the effects of s everal system parameters, such as jamming fraction, fading conditions and n umber of hops per symbol, on the SER performance of slow and fast FH/MFSK s ystems under independent MTJ.