Abstract
The bit error rate (BER) analysis of various interference types is discussed for orthogonal frequency-division multiplexing (OFDM) systems in both analytical form and software simulation results. Specifically, the BER performance of barrage noise interference (BNI), partial band interference (PBI), and multitone interference (MTI) has been investigated in time-correlated Rayleigh fading channel with additive white Gaussian noise (AWGN). In addition, two novel intentional interference injecting methods – optimal-fraction PBI and optimal-fraction MTI – for OFDM systems are proposed with detailed theoretical analysis. Simulation results validate the analytical results. It is shown that under the various channel conditions, the optimal-fraction MTI always gives the best interference effect among all the interference models given in this chapter. Both analysis and simulation indicate that the proposed optimal-fraction MTI can be used to obtain improved interference effect under various channel conditions with low complexity for OFDM systems.
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