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Interference Cancellation Schemes in UWB Systems Used in Wireless Personal Area Network based on Wavelet based Pulse Spectral shaping and Transmitted Reference UWB using AWGN Channel Model
2010
International Journal of Computer Applications
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using wavelet technique and reduction of interference from other narrowband system to UWB system in conjunction with Transmitted-Reference (TR-UWB) signaling scheme with adaptive receivers is attempted ...
In this paper adaptive receiver (using notch filter) is used for detection and suppression of mutual interference (narrowband and wideband signal) which do not require modification of the narrowband system ...
Unlike traditional narrowband systems, UWB generates short pulses and uses these pulses for data modulation. ...
doi:10.5120/620-890
fatcat:uocafpp4cnb3xg5rzi7ms6gpvi
Multi-band OFDM-based UWB system with multiple users and interference mitigation
2008
2008 IEEE International Conference on Ultra-Wideband
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Bit error rate (BER) performance of the proposed system is illustrated with numerical results obtained from simulations for various scenarios that include multiple users and narrowband interference. ...
In this paper we present a multiuser multiband OFDM-based UWB system with interference mitigation capabilities. ...
Thus, an important challenge facing UWB system designers is mitigation of both multiaccess interference (MAI) and narrowband interference (NBI). ...
doi:10.1109/icuwb.2008.4653355
fatcat:nitf6wuax5dvpdd2ukuykmifni
Error Analysis of Hybrid DS-Multiband-UWB Multiple Access System in the Presence of Narrowband Interference
2009
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
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The developed theoretical framework models the multiple access interference (MAI), multipath interference (MI) and narrowband interference for the designed UWB system. ...
The theoretical error analysis for the DS-MB-UWB multiple access system with Rake receiver in the presence of multipath and narrowband interference is developed. ...
Section 2 presents the DS-MB-UWB signal and system models. Then, Sect. 3 provides the modeling of various types of interference, including MAI, MI and narrowband interference. ...
doi:10.1587/transfun.e92.a.2167
fatcat:zq2gehybmfhinmy4myvdtqyctq
Performance Analysis of Rake Receivers in IR–UWB System
2013
IOSR Journal of Electronics and Communication Engineering
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Suppression of interference in time domain equalizers is attempted for high data rate impulse radio (IR) ultra wideband communication system. ...
The narrow band systems may cause interference with UWB devices as it is having very low transmission power and the large bandwidth. ...
A UWB Rake receiver structure is shown in Fig.1
Fig.1 UWB Rake receiver model in presence of NBI For a single user system, the continuous transmitted data stream is represented as = ( − . +∞ =−∞ ) ...
doi:10.9790/2834-0632327
fatcat:mlejfhtksffv7h57hwoonthrhi
Multi-Differential Slightly Frequency-Shifted Reference Ultra-wideband (UWB) Radio
2006
2006 40th Annual Conference on Information Sciences and Systems
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In particular, such a scheme obviates the need for the delay element that greatly complicates implementation of the receiver in standard transmitted reference UWB (TR-UWB) systems. ...
After a general performance characterization, applications to parallel data signaling, multidimensional signaling, and narrowband interference cancellation are considered that demonstrate the utility of ...
Moreover, the proposed MD FSR-UWB can also provide a large-dimensional signal space that allows for the mitigation of narrowband interference. The system model is described in Section II. ...
doi:10.1109/ciss.2006.286542
fatcat:4ocxutfvqfgbfh5ikxopp2k76u
A simulation comparison of time-hopping PAM and interference suppressing OFDM in multiuser ultra wideband communications systems
2008
2008 IEEE Radio and Wireless Symposium
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This is evaluated using simulations for various scenarios that include additive white Gaussian noise (AWGN), multipath and/or multiple access interference, and narrowband interference. ...
However, in the presence of narrowband interference the IS-OFDM system outperforms the TH-PAM IR system which displays poor performance in this case. ...
MMSE receiver for the IS-OFDM UWB system is designed to mitigate MAI only. ...
doi:10.1109/rws.2008.4463632
fatcat:fipztr5cynfa7bfa4tcxz7sgum
NARROWBAND INTERFERENCE REDUCTION TECHNIQUE IN IMPULSE RADIO (IR) UWB COMMUNICATION SYSTEM COEXISTING IN WPAN AND UNDERWATER ENVIRONMENT
2012
ICTACT Journal on Communication Technology
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model cancelling out the narrowband interference. ...
Study on non-line of sight indoor channel models illustrates that bit error rate performance of UWB SRAKE-MMSE (both LE and DFE types) improves for CM3 model with smaller spread compared to CM4 channel ...
PERFORMANCE ANALYSIS OF SRAKE-MMSE RECEIVERS FOR NBI MITIGATION IN UWB SYSTEM It is already studied in section 5 that UWB system performance degrades due to interferers from narrowband system. ...
doi:10.21917/ijct.2012.0067
fatcat:w2hlnkvm5zgejl4byhx2a4flme
Improvement of Ultra-wideband Link Performance over Bands Requiring Interference Mitigation in Korea
2010
ETRI Journal
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Ultra-wideband (UWB) systems have witnessed a debate over whether they may cause interference to other existing and future narrowband systems sharing their band of operation. ...
We investigate DAA's impact on performance and propose a method to mitigate it, which provides UWB with the more efficient support of the DAA mechanism and enables it to avoid a larger number of narrowband ...
We term all these systems as narrowband (NB) systems referring to their bandwidth compared to that of UWB. ...
doi:10.4218/etrij.10.0109.0218
fatcat:3cecefawm5aybhgynl7ptafgra
A channelized digital ultrawideband receiver
2003
IEEE Transactions on Wireless Communications
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narrowband interferer with a bandwidth of 15% of the chip frequency. ...
A channelized digital ultrawideband (UWB) receiver that efficiently samples the UWB signal at a fraction of the chip frequency is proposed. ...
Furthermore, the UWB radio must coexist with many other narrowband systems transmitting and receiving in the same bandwidth. ...
doi:10.1109/twc.2003.811177
fatcat:prxdn7daebbkjmcdvd2abtalea
Narrowband Interference Suppression In Transmitted Reference Uwb Receivers Using Sub-Band Notch Filters
2006
Zenodo
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Publication in the conference proceedings of EUSIPCO, Florence, Italy, 2006 ...
TRANSMITTED REFERENCE WITHOUT NBI We first briefly introduce the system model for the transmitted reference scheme. ...
In order to illustrate the concept of the transmitted reference system we present in this section the signal model without the narrowband interference. ...
doi:10.5281/zenodo.52655
fatcat:43mbpgw3kfgqdh3eomshsao27y
Compressed UWB signal detection with narrowband interference mitigation
2008
2008 IEEE International Conference on Ultra-Wideband
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However, strong narrowband interference (NBI) can easily jam and saturate the receiver front-end and greatly degrade the system performance. ...
The performance analysis of the proposed receiver is provided. Simulation results show the effectiveness of the proposed method for UWB signal detection and NBI mitigation. ...
The design of the dictionary Ψ c exploits the time sparsity of the multipath UWB channel model h(t). Please refer to [1] for details on the dictionary design for I-UWB signals. ...
doi:10.1109/icuwb.2008.4653375
fatcat:jfnfgo6n2ncbjog67dg3bsx2ri
Ultra-wideband wireless communications
2003
Wireless Communications and Mobile Computing
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with other narrowband wireless systems, design of the link and network layers to benefit from UWB transmission characteristics. ...
Ultra-wideband (UWB) communication techniques have attracted a great interest in both academia and industry in the past few years for applications in short-range wireless mobile systems. ...
Cheng, and L. Xu) at the Centre for Wireless Communications, University of Waterloo, for collecting previous publications on UWB which helped this research. ...
doi:10.1002/wcm.149
fatcat:4ta3hknr2jfoho4hw7ngkegb7u
Introduction to Ultra Wideband
[chapter]
2005
Ultra Wideband Wireless Communication
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receiver types such as the energy detector, rake, and transmitted reference receivers. ...
Another major interference source, specifically in UWB systems, is narrowband interference. ...
doi:10.1002/9780470042397.ch1
fatcat:6okhwnhrn5awjaykl3fb3ln46e
Adaptive narrowband interference mitigation by designing UWB waveforms based on radial basis function neural networks
2013
EURASIP Journal on Wireless Communications and Networking
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In order to mitigate the mutual interference between ultra-wideband (UWB) impulse radio and other existing wireless systems, a novel adaptive interference-avoiding UWB pulse, in the context of the appealing ...
The presented generator can adaptively change the spectrum shape of UWB signals according to the authorized users' working states, and hence the mutual interference between UWB and other systems sharing ...
, and by the National major special science and technology project of China (2011ZX03005-002, 2012ZX03001022). ...
doi:10.1186/1687-1499-2013-94
fatcat:a26galvxt5gyfnuvipywcfsju4
Ultra-Wideband Radio
2005
EURASIP Journal on Advances in Signal Processing
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The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels are explored, and their effects on UWB hardware design are illustrated. ...
Here, the low EM pollution and covertness of operation potentially provide the means for wireless transmission without licensing." (From the Abstract of C. L. Bennett and G. F. ...
discussions of UWB radio systems. ...
doi:10.1155/asp.2005.252
fatcat:42x2nibnwrecvdyjjcb3kswzfa
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