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Architectural analysis of compressed sensing based IR-UWB receiver for communication and ranging
KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
2014 (engelsk)Inngår i: Proceedings - IEEE International Conference on Ultra-Wideband, 2014, s. 222-227Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Compressed sensing (CS) based impulse radio ultra-wideband (IR-UWB) receiver has attracted much attention in recent years. This paper presents an architectural analysis of the CS-based IR-UWB receiver with focuses on investigating the random noise processes in the CS measurement procedure. We find that different noise sources (sky noise or amplifier noise) and different receiver architectures (parallel or serial) will results in different noise situation (correlated or uncorrelated) in the CS measurement procedure. Bit error rate (BER) simulation for a communication system and time-of-arrival (TOA) estimation for a ranging system in additive white Gaussian noise (AWGN) channel as well as IEEE 802.15.4a CM1 channel are performed. It shows that CS-based signal detection in uncorrelated noise situation outperforms the correlated noise situation. This noise driven architectural analysis can be used as a design guideline for the CS-based IR-UWB receiver regarding different application scenarios.

sted, utgiver, år, opplag, sider
2014. s. 222-227
Emneord [en]
Compressed sensing, CS measurement, impulse radio, receiver; UWB
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-159593DOI: 10.1109/ICUWB.2014.6958982Scopus ID: 2-s2.0-84912063610OAI: oai:DiVA.org:kth-159593DiVA, id: diva2:786173
Konferanse
2014 IEEE International Conference on Ultra-WideBand, ICUWB 2014; Paris; France
Merknad

QC 20150302

Tilgjengelig fra: 2015-02-04 Laget: 2015-02-04 Sist oppdatert: 2017-03-03bibliografisk kontrollert
Inngår i avhandling
1. Sub-Nyquist Sampling Impulse Radio UWB Receivers for the Internet-of-Things
Åpne denne publikasjonen i ny fane eller vindu >>Sub-Nyquist Sampling Impulse Radio UWB Receivers for the Internet-of-Things
2016 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

In the era of Internet-of-Things, the demand for short range wireless links featured by low-power and low-cost, robust communication and high-precision positioning is growing rapidly. Impulse Radio Ultra-Wideband (IR-UWB) technology characterized by the transmission of sub-nanosecond pulses spanning up to several GHz band with extremely low power spectral density emerges as a promising candidate. Nevertheless, several challenges must be confronted in order to take the full advantage of IR-UWB technology. The most significant one lies in the reception of UWB signals. Traditional receiver requires Nyquist rate ADC which is overwhelmingly complex and power hungry. This dissertation proposes and investigates possible sub-Nyquist sampling techniques for IR-UWB receiver design.

In the first part of this dissertation, the IR-UWB receiver based on energy detection (ED) principle is explored. A low-power ED receiver featured by flexibility and multi-mode operation is proposed. The receiver prototype for 3-5 GHz band is implemented in 90 nm CMOS. Measurement results demonstrate that 16.3 mW power consumption and -79 dBm sensitivity at 10 Mb/s data rate can be achieved. To further optimize the receiver performance, threshold optimization is suggested for the on-off-keying modulated signal, and adaptive synchronization and integration region optimization is proposed. Finally, a low complexity burst packet detection scheme is proposed, which is adaptive to the variations of noise background and link distance.

In the second part of this dissertation, the IR-UWB receiver based on compressed sensing (CS) theory is investigated. Firstly, appropriate sparse basis, sensing matrix and reconstruction algorithms are suggested for the CS based IR-UWB receiver. And then, the architectural analysis of the CS receiver with focuses on the random noise processes in the CS measurement procedure is presented. At last, a novel two-path noise-reducing architecture for the CS receiver is proposed. Besides the improvement on the receiver performance, the proposed architecture also relaxes the hardware implementation of the CS random projection as well as the back-end signal reconstruction.

sted, utgiver, år, opplag, sider
Stockholm: KTH Royal Institute of Technology, 2016. s. 79
Serie
TRITA-ICT ; 2016:23
Emneord
Ultra-Wideband, impulse radio, receiver, energy detection, compressed sensing, sub-Nyquist sampling, Internet-of-Things
HSV kategori
Forskningsprogram
Informations- och kommunikationsteknik
Identifikatorer
urn:nbn:se:kth:diva-195816 (URN)978-91-7729-174-9 (ISBN)
Disputas
2016-12-12, Sal 205, Electrum, Kista, 09:00 (engelsk)
Opponent
Veileder
Merknad

QC 20161110

Tilgjengelig fra: 2016-11-10 Laget: 2016-11-09 Sist oppdatert: 2016-11-10bibliografisk kontrollert

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Totalt: 23 treff
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