In order to decrease the inter-carrier interference (ICI) caused by the Pulse Blanking (PB), which is considered as an efficient method to combat impulsive interference, a Time Domain Interleaving upgraded PB (TDI-PB) is investigated for future aeronautical Orthogonal Frequency Division Multiplexing (OFDM) systems. The proposed TDI-PB focuses on the desired signals blanked with impulsive interference simultaneously. When all contaminated samples are blanked by PB, those useful signals also blanked by PB could be reconstructed by a linear interpolation. Since continuous blanked samples caused by PB will degrade interpolation seriously, to this end time domain interleave has to be deployed in TDI-PB mechanism. Analytical and simulation results illustrate that the proposed mechanism could effectively combat impulsive noise with negligible ICI and low computational complexity comparing to the original PB scheme.
Time domain interleave for mitigating impulsive noise in aeronautical OFDM systems
2015-04-01
339141 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Design Algorithm for Multichannel Interleave Filters
British Library Online Contents | 2007
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