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Simple method for localisation of multiple tag-free targets using UWB sensor network 使用超宽带传感器网络定位多个无标签目标的简单方法
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058843
R. Zetik, Snezhana Jovanoska, R. Thoma
{"title":"Simple method for localisation of multiple tag-free targets using UWB sensor network","authors":"R. Zetik, Snezhana Jovanoska, R. Thoma","doi":"10.1109/ICUWB.2011.6058843","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058843","url":null,"abstract":"In this article we propose a low complexity algorithm for detection and localization of multiple targets using UWB sensor networks. We assume that the targets being tracked do not have any devices or tags attached. They are localized using scattered electromagnetic waves. Our envisaged sensor network consists of sensor nodes that can autonomously detect and localize the closest target. Those partial location estimates are mapped into images of an inspected area that are smoothed in time. This data fusion method does not require any data association or multi-hypothesis tests that are usually prerequisite in localization of multiple targets. This yields a significantly lower computational complexity compared to other algorithms. We demonstrate the performance of our algorithm by an experimental measurement using 6 sensor nodes.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130205501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
UWB signaling for CR and coherent receivers and localization with weak received signals 超宽带信号的CR和相干接收器和定位与弱接收信号
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058855
Jin Wang, Ruiqing Ye, Huaping Liu, Ru Zhang
{"title":"UWB signaling for CR and coherent receivers and localization with weak received signals","authors":"Jin Wang, Ruiqing Ye, Huaping Liu, Ru Zhang","doi":"10.1109/ICUWB.2011.6058855","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058855","url":null,"abstract":"Pulsed ultrawideband (UWB) signaling is widely used in indoor localization networks, in which data communications often occur concurrently. The receivers in such a network often have different complexity, performance, and energy consumption requirements. The goal of this paper is to design a coded-reference (CR) UWB scheme that enables simultaneous data transmission and high-precision localization while receivers with different performance and complexity requirements can flexibly choose their own operation modes. We start with the Barker codes and construct a set of orthogonal codes for CR signaling; compared with existing schemes, these codes have the desired autocorrelation properties required for high-precision timing extraction when the received signal is weak (transmission over a long distance). We also modify an existing hybrid coherent-transmitted-reference modulation format and apply the orthogonal codes designed so that both coherent and CR receivers can demodulate the same transmitted data while the fine-timing information required for high-precision localization is carried inherently in the transmitted signal. Timing synchronization and error performances of the proposed system are analyzed and simulated.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117129346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The effect of channel models on compressed sensing based UWB channel estimation 信道模型对基于压缩感知的UWB信道估计的影响
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058867
M. Başaran, S. Erkucuk, H. A. Çırpan
{"title":"The effect of channel models on compressed sensing based UWB channel estimation","authors":"M. Başaran, S. Erkucuk, H. A. Çırpan","doi":"10.1109/ICUWB.2011.6058867","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058867","url":null,"abstract":"Ultra-wideband (UWB) multipath channels are assumed to have a sparse structure as the received consecutive pulses arrive with a considerable time delay and can be resolved individually at the receiver. Due to this sparse structure, there has been a significant amount of interest in applying the compressive sensing (CS) theory to UWB channel estimation. There are various implementations of the CS theory for the UWB channel estimation based on the assumption that the UWB channels are sparse. However, the sparsity of a UWB channel mainly depends on the channel environment. Motivated by this, in this study we investigate the effect of UWB channel environments on the CS based UWB channel estimation. Particularly, we consider the standardized IEEE 802.15.4a UWB channel models and study the channel estimation performance from a practical implementation point of view. The study shows that while UWB channel models for residential environments (e.g., CM1 and CM2) exhibit a sparse structure yielding a reasonable channel estimation performance, channel models for industrial environments (e.g., CM8) may not be treated as having a sparse structure due to multipaths arriving densely. The results of this study are important as it determines the suitability of different channel models to be used with the CS theory.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123010833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Markovian SS codes flatten the spectrum of UWB Gaussian pulse 马尔可夫SS码对超宽带高斯脉冲的频谱进行了平坦化处理
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058854
T. Kohda, Y. Jitsumatsu, K. Aihara
{"title":"Markovian SS codes flatten the spectrum of UWB Gaussian pulse","authors":"T. Kohda, Y. Jitsumatsu, K. Aihara","doi":"10.1109/ICUWB.2011.6058854","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058854","url":null,"abstract":"Gabor-division (GD) code division multiple access (CDMA) communication, which can provide almost flat power spectrum, has been recently proposed. Using a UWB Gaussian pulse generator implemented by CMOS technology as a fundamental component generating a chip waveform, we apply the GD-CDMA system for UWB communications. Time-frequency two dimensional spread spectrum (SS) codes with Markovity are employed. How Markovian SS codes flatten the spectrum of the transmitted signal is explained.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123044626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Compressed channel estimation and data detection algorithms for IR-UWB 短波宽带压缩信道估计和数据检测算法
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058864
A. Barbieri, F. Pancaldi, G. Vitetta
{"title":"Compressed channel estimation and data detection algorithms for IR-UWB","authors":"A. Barbieri, F. Pancaldi, G. Vitetta","doi":"10.1109/ICUWB.2011.6058864","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058864","url":null,"abstract":"In this paper compressed sensing (CS) techniques are employed to develop reduced sampling rate strategies for channel estimation and data detection in impulse radio ultrawideband (IR-UWB) systems. In particular, first channel estimation algorithms based on Matching Pursuit (MP) and Basis Pursuit Denoising (BPDN) techniques are proposed. Then, it is shown how the channel estimates generated by these algorithms can be used in correlation-based CS detectors. Finally, the performance loss originating from CS is assessed analytically in a transmitted reference (TR) system.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114413119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Opportunistic Spectrum Access based on underlay UWB signalling 基于底层UWB信令的机会频谱接入
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058822
M. Petracca, F. Mazzenga, Remo Pomposini, F. Vatalaro, R. Giuliano
{"title":"Opportunistic Spectrum Access based on underlay UWB signalling","authors":"M. Petracca, F. Mazzenga, Remo Pomposini, F. Vatalaro, R. Giuliano","doi":"10.1109/ICUWB.2011.6058822","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058822","url":null,"abstract":"Opportunistic Spectrum Access (OSA) is a promising solution to increase spectral efficiency in the Cognitive Radio (CR) framework. In OSA networks, unlicensed Secondary Users (SUs) need a Common Control Channel (CCC) to identify the spectrum opportunities, i.e., common spectrum holes unused by licensed Primary Users (PUs). To fulfill this requirement, the sharing of the spectrum sensing data via Ultra-wideband (UWB) has been proposed in the literature. In this paper we evaluate the design of a highly available underlay UWB signalling network for the exchange of sensing information among SUs avoiding harmful interference to PUs. We analyse the trade-off between the connectivity degree of a multi-hop underlay signalling network, related to the CCC parameters, and its coexistence with PUs. Moreover, we assess the performance of cooperative sensing in terms of detection probability accounting for the availability and the characteristics of the CCC. Results show that a correct dimensioning of the UWB signalling network allows to achieve high accuracy of PU detection avoiding harmful interference.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124551423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Optimisation of low power Radio-over-fibre links for UWB systems 超宽带系统低功率光纤无线电链路的优化
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058919
V. Sipal, D. Edwards, B. Allen
{"title":"Optimisation of low power Radio-over-fibre links for UWB systems","authors":"V. Sipal, D. Edwards, B. Allen","doi":"10.1109/ICUWB.2011.6058919","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058919","url":null,"abstract":"This paper focuses on the design of Radio-over-fibre (ROF) links for ultrawideband (UWB) applications. Due to strict regulations, network architecture and technical feasibility, UWB ROF links must have 0 dB gain, low noise figure and low DC power dissipation. Due to the low power of UWB signals, pre-amplification is possible. Design rules for UWB ROF links with a pre-amplifier are presented. If followed, these rules enable design of links with a lower noise figure and power dissipation than previous design rules yield for general purpose ROF links. This is illustrated by a ROF link for UWB channel sounding that requires only 27.3% of DC power compared to a commercial link with similar gain and noise figure.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126430114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Capacity regions of Wireless Network Coding with Hierarchical Decode & forward strategy applied on Impulse Radio UWB technology 在脉冲无线电UWB技术中应用分层解码转发策略的无线网络编码容量区域
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058849
T. Hynek, J. Sýkora
{"title":"Capacity regions of Wireless Network Coding with Hierarchical Decode & forward strategy applied on Impulse Radio UWB technology","authors":"T. Hynek, J. Sýkora","doi":"10.1109/ICUWB.2011.6058849","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058849","url":null,"abstract":"This paper addresses a cooperative communication scheme in a simple multi-node network of two mutually independent sources communicating over a common shared relay. We assume an Impulse Radio Ultra-Wideband (UWB) communication technique employed by all network nodes which influences used model of a channel impulse response. The signal received at the relay is processed by a Hierarchical Decode & Forward (HDF) strategy. Due to properties of a Hierarchical eXclusive Code (HXC) it is sufficient for the relay to fully decode only hierarchical symbols. The capacity region of the HDF strategy has a rectangular shape and exceeds the capacity region of a Joint Decode & Forward (JDF) concept. We assume a projection to given subspace at the input of the relay receiver to reduce the dimensionality of the signal. Impact of the choice of the subspace is analyzed in this paper. Various subspaces with different level of the knowledge of a Channel State Estimation (CSE) are considered. For different particular channel realizations, according to the chosen channel model, we numerically evaluate the MAC channel capacity. For comparison we also evaluate the classical MAC region as well as the true information theoretic channel capacity.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132691056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detect and avoid mechanism for ultra wide-band WiMedia: Experimental evaluation of detection capabilities 超宽带WiMedia的检测和避免机制:检测能力的实验评估
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058852
A. Somov, S. Kandeepan, A. Biswas, A. Krause
{"title":"Detect and avoid mechanism for ultra wide-band WiMedia: Experimental evaluation of detection capabilities","authors":"A. Somov, S. Kandeepan, A. Biswas, A. Krause","doi":"10.1109/ICUWB.2011.6058852","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058852","url":null,"abstract":"The Detect and Avoid (DAA) mechanism is a widely used technique in cognitive radios to support the coexistence of primary and secondary users operating in the same spectrum portion. In this paper we describe our experience in detecting WiMAX signal (operating as a primary user) in the 3.5 GHz range using the Ultra Wide-Band (UWB) test dongles from Wisair (operating as a possible secondary user of the spectrum). For this purpose a generic radiated test bed was prepared and two scenarios were considered in order to experimentally study the detection capability of DAA block within the WISAIR UWB devices. The detection results are presented in terms of the received signal strength and the sensitivity of the device.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129330558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Notice of Violation of IEEE Publication Principles A low complexity tuneable pulse generator architecture for sub-GHz UWB applications 一种用于sub-GHz UWB应用的低复杂度可调谐脉冲发生器架构
2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058915
V. Stornelli, R. Minutolo, G. Leuzzi, F. Barcio, M. Montanari
{"title":"Notice of Violation of IEEE Publication Principles A low complexity tuneable pulse generator architecture for sub-GHz UWB applications","authors":"V. Stornelli, R. Minutolo, G. Leuzzi, F. Barcio, M. Montanari","doi":"10.1109/ICUWB.2011.6058915","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058915","url":null,"abstract":"In this work we present a low-complexity, ultra-wideband (UWB) pulse generator which complies with the Sub-GHz band in FCC regulation. This pulse generator uses a simple common emitter amplifier followed by RC high-pass filter as a differentiator to generate the monocycle pulse directly. The circuit provides a monocycle pulse when activated by a ramp edge of an external trigger signal provided by a dedicated circuit exploiting also the pulse width duration tuneability by varying the edge slope. An ultra-short monocycle pulse of 1ns pulse duration up to tens of nanosends has been demonstrated with reduced ringing levels, and good symmetry. The design is versatile and may be used in a variety of integrated circuits UWB modulation schemes and systems. A discrete element board with commercial components has been implemented as prototype and good agreement between the measured and calculated results was achieved with a 50 mW power consumption from a 3.3V power supply.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134381998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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