• Title/Summary/Keyword: UWB 통신

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Performance Analysis of UBW Communication System using Time-Hopping PPM modulation (Time-Hopping PPM 변조를 이용한 UWB 통신 시스템의 성능 평가)

  • 변건식;이민혁;전제훈
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.1
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    • pp.220-226
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    • 2004
  • Ultra-wideband(UWB) communication applications is a recent innovation due to high transmission rate and low power emission. Therefore, it is important to research UWB signal's characteristics and modulation methods to apply to various UWB communication technologies. In this paper the characteristics of Gaussian monopulse which is capable of using UWB communication was analyzed and we compared the performance of PPM and PAM modulation method. Also we analyzed the interference effect of QPSK system with different center frequencies in the present of various UWB noises and simulated simple UWB transceiver system.

A study on wireless endoscope technology development combined with UWB communication module (UWB 통신모듈을 결합한 무선 내시경 기술 개발에 관한 연구)

  • Shim, Dongha;Lee, Jongsung;Rho, Jungkyu;Lee, Minwoo;Cha, Jaesang
    • Journal of Satellite, Information and Communications
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    • v.9 no.1
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    • pp.17-21
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    • 2014
  • In this paper, we proceeded a study about the wireless endoscopic technology development combined with UWB communication module for endoscope. Firstly, we proposed needs of UWB wireless endoscope technology development related to domestic endoscope industry and UWB communication technology. Also, we develop a wireless endoscope combined with UWB communication module. In this paper, the proposed UWB wireless endoscope technology can acquire a endoscope image using UWB communication method. It can transfer a image at high data rate using DB and Smart Device linkage technology, an effective and trusted diagnosis is possible. The proposed UWB wireless communication module combined with UWB communication module is expected to be widely utilized.

Performance Analysis of UWB Communication System for Multiuser Communition (다중 사용자 통신을 위한 UWB 통신 시스템의 성능평가)

  • 전제훈;이민혁;변건식
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.10a
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    • pp.488-491
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    • 2003
  • UWB communication applications is a recent innovation due to high transmission rate and low power emission. There, we analyzed monopulse's characteristics and simulated the performance for various UWB communication applications. we introduced Time-Hopping method and simulated for MAI removal in multi-user communication.

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Performance Analysis for Time-Hopping PPM m Communication using S-Function (S-Function을 이용한 초광대역 Time Hopping-PPM UWB 통신 시스템의 성능 평가)

  • 이민혁;전제훈;이성신;정주수;변건식
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2003.06a
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    • pp.213-216
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    • 2003
  • UWB 통신 기술은 초광대역 특성 때문에 높은 전송 속도와 저전력 통신이 가능하여 의료장비에 응용이 가능하며, 특히 유선이라는 제약성으로 큰 불편을 겪고 있는 ECG시스템에 적용되어질 수 있다. 따라서 근거리 무선 통신 기술로 급부상하고 있는 UWB 통신 기술의 응용을 위해 UWB 신호 특성 및 변조 방식의 연구가 행하여져야 한다. 이에 본 논문에서는 UWB에 사용가능한 각종 펄스의 특성과 적용하고자 하는 시스템 환경에서 발생할 수 있는 UWB 신호의 간섭 영향을 분석하였으며, 간단한 UWB 송수신 시스템을 시뮬레이션 하였다.

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Calculation of UWB Communication System Capacity with Timing litter (타이밍 지터를 고려한 UWB 통신 시스템 용량 계산)

  • 박장우
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.4
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    • pp.767-773
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    • 2004
  • An UWB communication system are a promising communication technique suitable for the current trends, which are requesting communication methods with the high throughputs and very high speed. A key feature of UWB communication systems is the very narrow pulse used in transmitting the data and PPM(Pulse Position Modulation) for modulating the data. So, the timing accuracy is very important. It is very important to accurately analyze the effect of the timing jitter on the performance of UWB communication systems. In this paper, the methods of analyzing the timing jitter effects on UWB communication systems are introduced. In particular, the channel capacities with timing jitter are calculated including the multiuser access interference.

A Performance Analysis of UWB Communication System using BPSK modulation (BPSK 변조를 이용할 UWB 통신 시스템의 성능평가)

  • Lee, Sun-Ho;Jun, Eun-Kyoung;Kim, Sung-Soo
    • Proceedings of the KIEE Conference
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    • 2005.07d
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    • pp.3013-3015
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    • 2005
  • UWB 통신기술은 초 광대역 특성 때문에 높은 전송속도와 저전력 통신이 가능하다는 이유로 Bluetooth 이후에 최근에 매우 각광을 받는 통신 응용분야이다. 따라서, 다양한 UWB 통신 기술의 적용을 위하여 UWB 신호의 특성과 변조 방법을 연구하는 것은 매우 중요하다. 본 논문에서는 UWB 통신에 사용가능한 가우시언 모노펄스의 펄스폭에 따른 BPSK 변조 방법의 성능을 비교하였다.

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Analysis and Measurement of Interferences between UWB and Mobile Communication System (UWB 시스템과 이동통신 시스템간의 간섭측정 분석)

  • Kim Myung-Jong;Lee Hyung-Soo;Hong Ic-Pyo;Shin Yong-Sup
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.15 no.10 s.89
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    • pp.1011-1017
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    • 2004
  • Ultra Wideband(UWB) technologies have been developed to exploit a new spectrum resource in substances and to realize ultra-high-speed communication, high precision geolocation, and other applications. The energy of UWB signal is extremely spread from near DC to a few GHz. This means that the interference between conventional narrowband systems and UWB systems is inevitable. However, the interference effects had not previously been studied from UWB wireless systems to conventional mobile wireless systems sharing the frequency bands such as Korean Cellular CDMA and WCDMA. This paper experimentally evaluates the interference from two kinds of UWB sources, namely a direct-sequence spread-spectrum CDMA(DS-CDMA) UWB source and an impulse radio UWB source, to a Cellular CDMA and WCDMA digital transmission system. The average frame error rate degradation of each system are presented. From these experimental results, the interference effects of DS-CDMA UWB source is not severe compared to the Impulse UWB.

Performance Analysis of UWB System using S-Function Builder (S-Function Builder를 이용한 UWB 시스템의 성능해석)

  • Lee Sung-Sin;Byon Kun-Sik
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.9 no.3
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    • pp.516-521
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    • 2005
  • The application of UWB not only complies with the requirements of remote sensors system(ECG), it also contributes to the effectiveness of the implementations through its unique qualities such as ultra low transmission power - an important factor when dealing with biomedical equipment. In this paper, the aim is to replace the wired ECG sensors with a wireless link and design wireless UWB communication system. The various pulse shapes are presented that satisfies the FCC spectral mask and FCC part 15 rule. It is shown that UWB can be a high rate transmission over short ranges using Rake receiver, with the capability for reliably transmitting 100Mbps over distance at about 10 meters.

The research of the UWB system radiation measurement (UWB 시스템의 방사출력 측정방법 연구)

  • Song, Hong-Jong;Cha, Jae-Sang
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.10 no.5
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    • pp.277-286
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    • 2010
  • In this paper we analyse radiation measurement method for UWB wireless system of the wideband low power frequency characteristics. In the radiation measurement environment we discuss RMS electric field strength, UWB PSD, UWB detect signal level, UWB noise signal collection etc.. also, we discuss power measure method of the CISPR16-1, low level e.i.r.p radiation measurement method. lastly we analyse consideration problem for the signal analyser of the UWB system.