PROJECT TITLE :
Analysis of an Adaptive Nonlinear Interference Suppressor for Wireless Multimode Transceivers
In multimode transceivers, the transmitter for one communication commonplace may induce robust interference within the receiver for one more normal, usually exceeding the specified signal by several tens of decibels. To linearly suppress this interference, the receiver needs a terribly giant linear dynamic vary, ensuing in excessive power consumption. In a recent paper, a nonlinear block, which requires an adaptation signal proportional to the envelope of the received interference, has been used to strongly suppress the interference. In that job, the specified adaptation signal for the nonlinear block has been determined analytically. During this paper, we quantify the desired accuracy for the adaptation signal to properly suppress the interference while keeping the degradation to the receiver symbol error rate (SER) negligible. To produce the desired accuracy, we tend to propose a closed-loop technique that calculates the difference signal based on a model, which describes the received interference in terms of the domestically offered baseband interference. We tend to propose a methodology to adapt this model during the operation of the transceiver such that the facility of the residual interference at the output of the nonlinear block is minimized. Our analysis shows that the proposed methodology can strongly suppress the interference while a SER shut to that of an specifically linear receiver is achieved. Simulation results for a practical situation validate this analysis.
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