On the Impact of Ultra Wide Band (UWB) System on Macrocell Downlink of IS-136 Systems

As the restaurant industry is facing labor shortage issues, the use of meal delivery robots instead of waiters/waitresses not only allows the customers to experience the impact of robot technology but also benefits the restaurant business financially by reducing labor costs. Most existing meal delivery robots employ magnetic navigation technologies, which require magnetic strip installation and changes to the restaurant decor. Once the moving path is changed, the magnetic strips need to be re-laid. This study proposes multisource information fusion, i.e., the fusion of ultra-wide band positioning technology with an odometer and a low-cost gyroscope accelerometer, to achieve the positioning of a non-rail meal delivery robot with navigation. By using a low-cost electronic compass and gyroscope accelerometer, the delivery robot can move along a fixed orbit in a flexible and cost-effective manner with steering control. Ultra-wide band (UWB) and track estimation algorithm are combined by extended Kalman filter (EKF), and the positioning error after fusion is about 15 cm, which is accepted by restaurants. In summary, the proposed approach has some potential for commercial applications.

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Impact of Delay Spread on IEEE 802.15.4a Networks with Energy Detection Receivers

Journal of Applied Research and Technology ◽

10.22201/icat.16656423.2010.8.03.458 ◽

2010 ◽

Vol 8 (03) ◽

Cited By ~ 3

Author(s):

P. Medina ◽

J. R. Gallardo ◽

J. Sánchez ◽

F. Ramírez-Mireles

Keyword(s):

Bit Error Rate ◽

Error Rate ◽

Wide Band ◽

Energy Detection ◽

Ultra Wide Band ◽

Delay Spread ◽

Multiuser Interference ◽

Ieee 802.15.4A ◽

Industrial Environments ◽

The Impact

This work analyzes the impact of delay spread on IEEE 802.15.4a networks using energy detection (ED) receivers.Specifically, we review the typical values for delay spread in Ultra Wide Band (UWB) systems reported to date for indoor, outdoor and industrial environments, and study how the delay spread impacts the bit-error rate with and without Multiuser Interference (MUI).

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On the Impact of Ultra Wide Band (UWB) on Macrocell Downlink of CDMA-PCS System

Wireless Personal Communications ◽

10.1007/s11277-006-9228-1 ◽

2006 ◽

Vol 43 (2) ◽

pp. 355-367

Author(s):

Bazil Taha-Ahmed ◽

Miguel Calvo-Ramón ◽

Leandro Haro-Ariet

Keyword(s):

Wide Band ◽

Ultra Wide Band ◽

The Impact

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A 40 Gbps electro-absorption modulator integrated laser modeling method for optical transmitter in ultra-wide band radio-over-fiber systems

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078709990791 ◽

2009 ◽

Vol 1 (6) ◽

pp. 511-519 ◽

Cited By ~ 3

Author(s):

Frédérique Deshours ◽

Anne-Laure Billabert ◽

Catherine Algani ◽

Fabrice Blache ◽

Christian Rumelhard ◽

...

Keyword(s):

Orthogonal Frequency Division Multiplexing ◽

Wide Band ◽

Optoelectronic Device ◽

Modeling Method ◽

Ultra Wide Band ◽

Design System ◽

Large Signal ◽

Fiber System ◽

Optical Transmitter ◽

The Impact

The great interest of optical fiber links in communicating systems especially in ultra-wide band (UWB) communications has grown up in the last decade and requires co-simulation for mixed circuits design exploiting both optical and microwave domains. In this paper, we report an original modeling method of an electro-absorption modulator associated with a distributed-feedback laser to simulate an optical transmitter of an UWB over fiber system. Large signal optoelectronic device models can be developed and implemented in a high-frequency simulator, such as advanced design system-Ptolemy to analyze the performances of fiber radio links and study the impact of the transmitter characteristics. This specific simulation way, taking into account precisely electrical characteristics of both electrical and optical circuits, links two different frequency domains by coupling electrical and optical modules in the same system simulator. Therefore, a complete simulation of an UWB multi-band orthogonal frequency division multiplexing signal transmission over fiber with an external modulator is investigated.

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Use of Ultra Wide Band Real-Time Location System on Construction Jobsites: Feasibility Study and Deployment Alternatives

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17072219 ◽

2020 ◽

Vol 17 (7) ◽

pp. 2219

Author(s):

Waleed Umer ◽

Mohsin K. Siddiqui

Keyword(s):

Real Time ◽

Manufacturing Industry ◽

Wide Band ◽

Ultra Wide Band ◽

Small Scale ◽

Construction Sites ◽

Average Accuracy ◽

Series Of Experiments ◽

The Impact ◽

Level Of Effort

Ultra wide band (UWB)-based real-time location systems (RTLSs) have been widely adopted in the manufacturing industry for tracking tools, materials, and ensuring safety. Researchers in the construction domain have investigated similar uses for UWB-based RTLSs on construction jobsites. However, most of these investigations comprised small-scale experiments using average accuracy only to demonstrate use cases for the technology. Furthermore, they did not consider alternative deployment scenarios for practically feasible deployment of the technology. To overcome these limitations, a series of experiments were performed to study the feasibility of a commercially available RTLS on the construction jobsites. The focus of the work was on feasibility in terms of accuracy analysis of the system for a large experimental site, the level of effort requirements for deployment, and the impact of deployment alternatives on the accuracy of the system. The results found that average accuracy was found to be a misleading indicator of the perceived system performance (i.e., 95th percentile values were considerably higher than average values). Moreover, accuracy is significantly affected by the deployment alternatives. Collectively, the results arising from the study could help construction/safety managers in decision making related to the deployment of UWB-based RTLSs for their construction sites.

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ULTRA-WIDE BAND APPLICATIONS IN INDUSTRY: A CRITICAL REVIEW / ULTRAPLAČIOS JUOSTOS BANGŲ TAIKYMAS PRAMONĖJE: KRITINĖ APŽVALGA

Journal of Civil Engineering and Management ◽

10.3846/13923730.2011.596317 ◽

2011 ◽

Vol 17 (3) ◽

pp. 437-444 ◽

Cited By ~ 13

Author(s):

Shaohua Jiang ◽

Miroslaw J. Skibniewski ◽

Yongbo Yuan ◽

Chengshuang Sun ◽

Yujie Lu

Keyword(s):

Wide Band ◽

Ultra Wide Band ◽

Industry Performance ◽

History Of ◽

Art Research ◽

Technical Features ◽

Communication Approach ◽

Uwb Applications ◽

The Impact ◽

Near Future

As a radically distinct wireless communication approach compared to traditional narrow band systems, ULTRA-WIDE BAND (UWB) technology has been applied in various sectors and is gaining in popularity, but there appears to be a lack of systematic summary of the potential of this technology. To provide insights into UWB technology for the uninitiated reader, this paper explores the state-of-the-art research and development of UWB applications in many sectors including the construction industry without concerning the technological details. First this paper presents the key concepts related to UWB technology and a brief history of UWB. Then it summarizes the UWB's technical features which enable its popularity in industry. Finally, application examples of UWB technology in many sectors, including construction, are presented to analyze and highlight the impact on the industry performance. In the near future UWB technology is expected to become a very important component and have far-reaching impact in ubiquitous computing. Santrauka Bevielio ryšio ultraplačios juostos bangų (UWB) technologija, radikaliai besiskirianti nuo tradicinės siauros juostos sistemų, buvo plačiai taikoma įvairiuose sektoriuose ir tampa vis populiaresnė, tačiau akivaizdu, kad vis dar trūksta susistemintos šios technologijos galimybių apžvalgos. Siekiant pateikti įžvalgas apie UWB technologiją, šiame straipsnyje analizuojami dabartiniai UWB technologijos tyrimai ir UWB taikymas įvairiuose sektoriuose, įskaitant statybą, nenagrinėjant technologinių detalių. Pirmiausia šiame straipsnyje pristatomos pagrindinės sąvokos, susijusios su UWB technologija ir UWB technologijos istorine raida. Tada susisteminamos techninės UWB technologijos charakteristikos, kurios lemia jos populiarumą pramonėje. Galiausiai analizuojami UWB technologijos taikymo pavyzdžiai įvairiuose sektoriuose, įskaitant statybą, atkreipiant dėmesį į jų poveikį pramonės veiklai. Netolimoje ateityje UWB technologija turėtų tapti labai svarbi ir turėti ilgalaikį poveikį visuotinei kompiuterizacijai.

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