Design of MB-OFDM UWB system frequency synchronization

Shi Jie Ren; Jian Ping An; Xiang Yuan Bu; Zhan Xu; Xia Zhang

doi:10.15918/j.tbit1001-0645.2016.12.014

Design of MB-OFDM UWB system frequency synchronization

Shi Jie Ren, Jian Ping An, Xiang Yuan Bu, Zhan Xu^*, Xia Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The influence of carrier frequency offset (CFO) and sampling frequency offset (SFO) on the system performance in multi-band orthogonal frequency division multiplexing ultra wideband (MB-OFDM UWB) system and frequency synchronization was analyzed. First, preambles were used to estimate the CFO in time domain, the estimated value was averaged according to each frequency band's SNR in order to improve the estimate precision. Second, pilots were used to estimate the residual CFO and the SFO in frequency domain. In the end, the residual phase error was compensated in frequency domain. Analysis results show that, the methods are suitable for each band group (BG1~BG5) and all frequency hopping patterns (TFC1~TFC10). The simulation results show that, when SNR is 15 dB, the mean square error level of normalized CFO is 10^-16, the mean square error level of normalized SFO is 10^-10. The design method is of high accuracy, and is suitable for high speed MB-OFDM UWB system.

Original language	English
Pages (from-to)	1283-1288
Number of pages	6
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	36
Issue number	12
DOIs	https://doi.org/10.15918/j.tbit1001-0645.2016.12.014
Publication status	Published - 1 Dec 2016

Keywords

Carrier frequency offset
ECMA-368
MB-OFDM UWB
Sampling frequency offset
Synchronization

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10.15918/j.tbit1001-0645.2016.12.014

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title = "Design of MB-OFDM UWB system frequency synchronization",

abstract = "The influence of carrier frequency offset (CFO) and sampling frequency offset (SFO) on the system performance in multi-band orthogonal frequency division multiplexing ultra wideband (MB-OFDM UWB) system and frequency synchronization was analyzed. First, preambles were used to estimate the CFO in time domain, the estimated value was averaged according to each frequency band's SNR in order to improve the estimate precision. Second, pilots were used to estimate the residual CFO and the SFO in frequency domain. In the end, the residual phase error was compensated in frequency domain. Analysis results show that, the methods are suitable for each band group (BG1~BG5) and all frequency hopping patterns (TFC1~TFC10). The simulation results show that, when SNR is 15 dB, the mean square error level of normalized CFO is 10-16, the mean square error level of normalized SFO is 10-10. The design method is of high accuracy, and is suitable for high speed MB-OFDM UWB system.",

keywords = "Carrier frequency offset, ECMA-368, MB-OFDM UWB, Sampling frequency offset, Synchronization",

author = "Ren, {Shi Jie} and An, {Jian Ping} and Bu, {Xiang Yuan} and Zhan Xu and Xia Zhang",

year = "2016",

month = dec,

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doi = "10.15918/j.tbit1001-0645.2016.12.014",

language = "English",

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pages = "1283--1288",

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T1 - Design of MB-OFDM UWB system frequency synchronization

AU - Ren, Shi Jie

AU - An, Jian Ping

AU - Bu, Xiang Yuan

AU - Xu, Zhan

AU - Zhang, Xia

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The influence of carrier frequency offset (CFO) and sampling frequency offset (SFO) on the system performance in multi-band orthogonal frequency division multiplexing ultra wideband (MB-OFDM UWB) system and frequency synchronization was analyzed. First, preambles were used to estimate the CFO in time domain, the estimated value was averaged according to each frequency band's SNR in order to improve the estimate precision. Second, pilots were used to estimate the residual CFO and the SFO in frequency domain. In the end, the residual phase error was compensated in frequency domain. Analysis results show that, the methods are suitable for each band group (BG1~BG5) and all frequency hopping patterns (TFC1~TFC10). The simulation results show that, when SNR is 15 dB, the mean square error level of normalized CFO is 10-16, the mean square error level of normalized SFO is 10-10. The design method is of high accuracy, and is suitable for high speed MB-OFDM UWB system.

AB - The influence of carrier frequency offset (CFO) and sampling frequency offset (SFO) on the system performance in multi-band orthogonal frequency division multiplexing ultra wideband (MB-OFDM UWB) system and frequency synchronization was analyzed. First, preambles were used to estimate the CFO in time domain, the estimated value was averaged according to each frequency band's SNR in order to improve the estimate precision. Second, pilots were used to estimate the residual CFO and the SFO in frequency domain. In the end, the residual phase error was compensated in frequency domain. Analysis results show that, the methods are suitable for each band group (BG1~BG5) and all frequency hopping patterns (TFC1~TFC10). The simulation results show that, when SNR is 15 dB, the mean square error level of normalized CFO is 10-16, the mean square error level of normalized SFO is 10-10. The design method is of high accuracy, and is suitable for high speed MB-OFDM UWB system.

KW - Carrier frequency offset

KW - ECMA-368

KW - MB-OFDM UWB

KW - Sampling frequency offset

KW - Synchronization

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JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

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ER -

Design of MB-OFDM UWB system frequency synchronization

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