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Author Qin Zhou ♦ Zhuo Zou ♦ Tenhunen, H. ♦ Li-Rong Zheng
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2012
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Wireless sensor networks ♦ UWB ♦ Energy capture ♦ integration region optimization ♦ Bit error rate ♦ Receivers ♦ energy detection ♦ synchronization ♦ non-coherent ♦ Synchronization ♦ Optimization ♦ Delay
Abstract Non-coherent energy detection (ED) IR-UWB receivers exhibit strong advantages in low data rate, low power and low cost applications such as RFID and Wireless Sensor Networks. However, the performance of ED receivers is usually suffered from the noise enhancement due to the large time-bandwidth product. The integration region of the receiver integrator significantly affects the bit error rate (BER) performance. This paper presents a method of synchronization and estimating the optimal integration region (i.e., the starting point and the length of the integration window), which is based on the analysis of received signal energy capture and combined with a time of arrival (TOA) estimation. The proposed scheme is based on the symbol rate sampling and does not require a priori information about the channel delay profile. Besides, it can adapt to various indoor channel environments. The algorithm has a moderate accuracy but a very low complexity and fast synchronization speed. The validity of the proposed approach is demonstrated by numerical results using IEEE 802.15.4a channel models.
Description Author affiliation: iPack Vinn Excellence Center, School of Information and Communication Technology, KTH-Royal Institute of Technology, Sweden (Qin Zhou; Zhuo Zou; Tenhunen, H.; Li-Rong Zheng)
ISBN 9781457720314
ISSN 21626588
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-09-17
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781457720321
Size (in Bytes) 375.38 kB
Page Count 5
Starting Page 62
Ending Page 66

Source: IEEE Xplore Digital Library