Faculty Publications

On The Variance-Based Detection For Impulse Radio UWB Systems

Document Type

Article

Keywords

energy detection, Impulse radio, narrowband interference, ultra-wideband, variance detection

Journal/Book/Conference Title

IEEE Transactions on Wireless Communications

Volume

15

Issue

12

First Page

8249

Last Page

8259

Abstract

A variance detection (VD)-based impulse radio ultra-wideband (IR-UWB) system has the potential of mitigating narrowband interference (NBI), even in multipath environments. However, as a highly nonlinear system, which involves fourth-order multiplications, comprehensive analysis and evaluations of its performances have not been seen so far. In this paper, we address the issues by developing a log-normal random distribution model for the VD-based IR-UWB receiver and deriving the analytical bit-error-rate formulas for the system in both additive white Gaussian noise and CM1 multipath channels with and without NBIs for the first time. Furthermore, through both theoretical analysis and simulations, we show that the presented VD-based receivers can outperform the conventional energy-detection-based and the fourth-order detection-based receivers and have a stronger inherent ability to mitigate destructive performance degradation caused by strong NBIs. This makes the VD-based IR-UWB system a good candidate as a non-coherent IR-UWB receiver for low power and low complexity applications.

Department

Department of Technology

Original Publication Date

12-1-2016

DOI of published version

10.1109/TWC.2016.2613532

Repository

UNI ScholarWorks, Rod Library, University of Northern Iowa

Language

en

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