Faculty Publications

Title

On the nonlinear teager-kaiser operator for energy detection based impulse radio UWB receivers

Document Type

Article

Keywords

and nonlinear signal processing, energy detection receiver, narrowband interference, Teager-Kaiser operator, Ultra wideband (UWB)

Journal/Book/Conference Title

IEEE Transactions on Wireless Communications

Volume

13

Issue

5

First Page

2955

Last Page

2965

Abstract

In this paper, by modeling a narrowband interference (NBI) as a wide-sense stationary (WSS), zero-mean Gaussian bandpass random process, a systematic theoretical framework is developed for the first time to characterize the operation and performance improvement of energy detection (ED) based impulse radio ultra-wideband (IR-UWB) receivers that employ a nonlinear Teager-Kaiser operator (TKO) and a highpass filter. Furthermore, through both theoretical analysis and simulations, we have identified (1) that the TKO technique can effectively mitigate not only the performance degradation caused by an NBI but also that caused by additive white Gaussian noise and (2) that a larger bandwidth of the UWB signal leads to better mitigation. Therefore, the TKO technique is considered as a very promising technique to improve the overall performance of ED-based IR-UWB receivers no matter an NBI is present or not. © 2014 IEEE.

Original Publication Date

5-1-2014

DOI of published version

10.1109/TWC.2014.041714.122066

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