Adaptive Threshold Control for a 1-bit ADC in a Low Complex IR-UWB Receiver

Soon-Woo LEE  Young-Jin PARK  Yong-Hwa KIM  Kwan-Ho KIM  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E92-A    No.2    pp.677-680
Publication Date: 2009/02/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E92.A.677
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Mobile Information Network and Personal Communications
IR-UWB,  1-bit ADC,  threshold estimation,  

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This letter proposes an adaptive threshold control algorithm for a low complex noncoherent IR-UWB receiver using a 1-bit ADC. To estimate and control a threshold level in the noncoherent IR-UWB receiver, it uses binary output of the 1-bit ADC instead of energy level of received signals using a high resolution ADC, which reduces hardware complexity of the receiver. Theoretical performance evaluation and computer simulation demonstrates that the performance of the proposed algorithm is similar to that of theoretically optimum one.