Filters








1,780 Hits in 4.5 sec

Impulse Radio Systems with Multiple Types of Ultra-Wideband Pulses [article]

Sinan Gezici, Zafer Sahinoglu, Hisashi Kobayashi, H. Vincent Poor
2005 arXiv   pre-print
Spectral properties and performance of multi-pulse impulse radio ultra-wideband systems with pulse-based polarity randomization are analyzed.  ...  types of ultra-wideband pulses.  ...  Introduction Impulse radio ultra-wideband (IR-UWB) systems hold great promise for a variety of applications such as shortrange high-speed data transmission and precise location estimation.  ... 
arXiv:cs/0502083v1 fatcat:cbrtcjr265af7f6xuolkamgzta

Introduction to Ultra Wideband [chapter]

Hüseyin Arslan, Maria-Gabriella Di Benedetto
2005 Ultra Wideband Wireless Communication  
The choice of the pulse shape is thus a key design decision in UWB systems. Chapter 5, "Ultra Wideband Pulse Shaper Design," will discuss the UWB pulse design issues.  ...  As a result, a received signal is made up of pulses with different pulse shapes, which makes synchronization, channel estimation, and optimal receiver design more challenging than in other wideband systems  ... 
doi:10.1002/9780470042397.ch1 fatcat:6okhwnhrn5awjaykl3fb3ln46e

DESIGN OF ANALYTICAL MODEL FOR ULTRA WIDEBAND SYSTEM

Alpana P. Adsul, Shrikant K. Bodhe
2010 International Journal of Computer Networks & Communications  
Ultra Wide Band impulse radios are microwave systems that communicate using baseband pulses of very short duration.  ...  The performance of UWB system is described with the help of BER. The BER of a UWB system depends on the modulation scheme and detection method it uses.  ...  Impulse radio communication systems and impulse radars both utilize very short pulses in transmission that results in an ultra-wideband spectrum.  ... 
doi:10.5121/ijcnc.2010.2309 fatcat:ymjk74w4yndzjaicwb77yca4z4

The Roles of Ultra Wideband in Cognitive Networks

Mustafa E. Sahin, Sadia Ahmed, Huseyin Arslan
2007 2007 IEEE International Conference on Ultra-Wideband  
A proper candidate for the physical layer implementation of cognitive radio networks is ultra wideband (UWB), because UWB is highly competent in satisfying many basic requirements of cognitive radio.  ...  Beside this, UWB can also provide various kinds of supportive uses to cognitive radio systems that are realized by means of other wireless technologies.  ...  SUITABILITY OF ULTRA WIDEBAND FOR COGNITIVE RADIO Considering the main features of ultra wideband, it is seen that there is a strong match between what the cognitive radio requires and what UWB offers.  ... 
doi:10.1109/icuwb.2007.4380950 fatcat:4km7zcjv5rghfbemoyuxmolp2m

A Biphase Modulator Circuit for Impulse Radio-UWB Applications

Bernd Schleicher, Çagri A. Ulusoy, Hermann Schumacher
2010 IEEE Microwave and Wireless Components Letters  
The authors are with the Institute of Electron Devices and Circuits and the Competence Center on Integrated Circuits in Communications, Ulm University, Ulm, Germany (e-mail: bernd.schleicher@uni-ulm.de  ...  Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LMWC.2009.2038617  ...  It can be used in UWB systems using pulse correlation reception or spectral spreading. Index Terms-Biphase modulator, impulse radio ultra-wideband (IR-UWB). Fig. 1 . 1 Fig. 1.  ... 
doi:10.1109/lmwc.2009.2038617 fatcat:pitwycwjszg7tegrfbbpakqew4

Performance Improvement of Ultra Wideband Multiple Access Modulation System using a new Optimal Pulse Shape

V. Goyal, B. S. Dhaliwal
2017 Advanced Electromagnetics  
In this paper, we will present an approach for the generation of an optimal pulse shape with the optimal generation of pulse shape values that can provide effective results when transmitted using multiple  ...  Ultra-wideband (UWB) uses very low energy levels to transfer data at very high data rate and bandwidth.  ...  For the generation of UWB signals a research paper [4] explained that Impulse radio can be used for ultra wideband transmission using a Gaussian monocycle pulse.  ... 
doi:10.7716/aem.v6i1.424 fatcat:zeoijvk2ynau7dontquicg4rui

Spectrum sharing radios

D. Cabric, I.D. O'Donnell, M.S.-W. Chen, R.W. Brodersen
2006 IEEE Circuits and Systems Magazine  
of Ultra-Wideband signaling with a particular focus on unique aspects of impulse signaling.  ...  On the other hand, others have promoted a technique that is made possible by the wideband frequency allocation with a novel type of signaling which makes use of impulses to carry information.  ...  where his research focus is new applications of integrated circuits as applied to personal communications systems with emphasis on wireless communications, low power design and the CAD tools necessary  ... 
doi:10.1109/mcas.2006.1648988 fatcat:xbxvpeo25vgy7m3wxkevi2sgau

A Survey on Various Receivers for UWB Communication

Saranya Pauline
2013 IOSR Journal of Electronics and Communication Engineering  
Ultra Wideband (UWB) is an inherent technology used in current wired and wireless communication systems.  ...  In multi-user environments, multiple access interference (MAI) degrades the performance of UWB systems.  ...  This interference fact between impulse radio and the other existing radio systems is one of the significant topics in present UWB research.  ... 
doi:10.9790/2834-0760711 fatcat:yt5iz5xsyfa6zbonkqz7r7rb44

SYSTEM SIMULATIONS OF DS-TRD AND TH-PPM FOR ULTRA-WIDE BAND (UWB) WIRELESS COMMUNICATIONS

S. Vasana, K. Phillips
2010 International Journal of Modelling and Simulation  
This paper illustrates two types of impulse UWB radio modulation systems and their simulation performance.  ...  Unique ways of coding and positioning the impulses, as in Transmitted-Reference Delay (TRD) modulation and Pulse-Position Modulation (PPM), can result in the simple UWB radio architectures.  ...  We would like to thank Terry Smith and Mark Price for providing quality technical support on the system simulation tool of Coware SPW.  ... 
doi:10.2316/journal.205.2010.2.205-4496 fatcat:injcywb6pncixdaxktrz2hcr4q

Analysis of Physical Processes in Electronic Equipment Under the Exposure of Electromagnetic Radiation

2020 International Journal of Emerging Trends in Engineering Research  
The primary and secondary effects in semiconductor elements under the influence of pulsed microwave noise are considered.  ...  The article analyzes the possible physical effects and processes that can occur in semiconductor and microprocessor radio-electronic equipment when exposed to powerful electromagnetic radiation of ultrashort  ...  a series of single or multiple ultra-wideband signals, following with a small interval.  ... 
doi:10.30534/ijeter/2020/918102020 fatcat:mf3lhiqlcbey3mxroahqtfjh24

Ultra-Wideband RF Transceive [chapter]

M. A.
2012 Ultra Wideband - Current Status and Future Trends  
The MB-OFDM systems are dealing with continuous ultra-wideband modulated signals while DS-UWB systems are transmitting discrete short pulses which cover ultra-wide bandwidth.  ...  To avoid the frequency use of WLAN radio signals, the direct sequence ultra-wideband (DS-UWB) specifications for wireless personal area networks (WPANs) need further to divide into a low band of 3.1-4.9  ... 
doi:10.5772/49095 fatcat:yxcpq2a5xvgilieobyynutt6i4

Analysis the Performance of Transceiver Circuits for Pulse Based Ultra Wideband

Bobby Barua
2012 International Journal of Engineering and Technology  
To complete the analysis we introduce a transmitter and receiver of pulse based ultra wideband modulation.  ...  In this paper we is specifically focused on the performance of software radio transceiver design for impulse-based UWB with the ability to transmit a raw data rate of 100 Mbps yet encompasses the adaptability  ...  INTRODUCTION Ultra wideband (also known as UWB or as digital pulse wireless) is a wireless technology for transmitting large amounts of digital data over a wide spectrum of frequency bands with very low  ... 
doi:10.7763/ijet.2012.v4.311 fatcat:nkoixj64cjco5ffztvohlw55dq

UWB Antennas: Design and Modeling [chapter]

Yvan Duroc, Ali Imran
2010 Ultra Wideband  
Fig. 15 (b) is the impulse radio OOK signal where pulses are easily modeled in VHDL-AMS by the Rayleigh monocycle.  ...  Notably concerning impulse radio applications, antennas are critical components since the emitted and received pulse shapes are distorted.  ...  Ultra Wideband Ultra wideband technology is one of the most promising directions in the rapidly developing modern communications.  ... 
doi:10.5772/10002 fatcat:h36yqnynjrhvxonechhxuqz4yy

Packet collision based Multiuser Interference (MUI) analysis for TH-PAM and TH-PPM ultra wideband (UWB) system

Himanshu B. Soni, U.B. Desai, S.N. Merchant
2008 2008 3rd International Conference on Communication Systems Software and Middleware and Workshops (COMSWARE '08)  
In this paper we have examine MUI by considering packet based transmission with Impulse radio.  ...  Here we have considered the TH-PAM and TH-PPM based Impulse radio systems for evaluating MUI.  ...  For multiple access in Impulse radio based UWB system, literatures [3] , [6] suggest method based on Time Hopping (TH) technique.  ... 
doi:10.1109/comswa.2008.4554488 dblp:conf/comsware/SoniDM08 fatcat:d5rskp26kvbvbm5yk6kdizzx4y

Analytical Approach for the TH-BPSK Ultra-Wideband Systems Performance

Chihi Houda, Hizem Moez, Bouallegue Ridha
2012 Journal of clean energy technologies  
This paper characterizes the performance of Time Hopping Binary Phase-shift Keying (TH-BPSK) multiple access schemes for Ultra Wideband (UWB) communications by validating an analytical study based on the  ...  Analysis of TH-BPSK is assessed over the approach used in [1] for a Time Hopping Binary Pulse Position Ultra-Wideband Modulation scheme (TH BPPM-UWB) and a comparison is made between both.  ...  TH multiple access technique, where users are distinguished by their respective pulse arrival time sequences, is one of the most popular multiple access techniques used for an impulse radio system [2]  ... 
doi:10.7763/ijcte.2012.v4.622 fatcat:mhaakyafmvchbgzzy5dqvc5k7a
« Previous Showing results 1 — 15 out of 1,780 results