Earticle

초록

영어

In order to support ultrawide-band signal generation for low rate WPAN, several types of signal generation mechanisms are suggested such as Chaos, Impluse, and Chirp signals by the activity of IEEE 802.15.4a. The communication system applied chaos theory may have ultrawide-band characteristics with spread spectrum and immunity from multipath effect. In order to use the advantage of chaotic signal generation, we introduce the system implementation of communication and networking systems with the chaos UWB signal. This system may be composed of mainly three parts in hardware architecture : RF transmission with chaotic signal generation, signal receiver using amplifiers and filters, and 8051 & FPGA unit. The most difficult part is to implement the chaotic signal generator and build transceiver with it. The implementation of the system is devidced into two parts i.e. RF blocks and digital blocks with amplifiers, filters, ADC, 8051 processor, and FPGA. In this paper, we introduce the system block diagram for chaotic communications. Mainly the RF block is important for the system to have good performance based on the chaotic signal generator. And the main control board functions for controlling RF blocks, processing Tx and Rx data, and networking in MAC layer.

목차

Abstract
 1 Introduction
 2 Chaotic UWB System
 3 Chaotic RF Blocks
  3.1 Chaotic Oscillator
  3.2 Modulation
  3.3 Band Pass Filter
  3.4 LNA Blocks
 4 System Implementation
  4.1 Experimental Results
 5 Conclusions
 References

키워드

저자

• Lee, Cheol-Hyo [ Electronics and Telecommunication Research Institute (ETRI) ]
• Kim, Jae-Young [ Electronics and Telecommunication Research Institute (ETRI) ]
• Kim, Young-Kkwan [ Limetek Inc.) ]
• Choi, Sun-Kyu [ Limetek Inc.) ]
• Jang, Ui-Gi [ Limetek Inc.) ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국정보기술응용학회 학술대회

• 간기

  부정기

• 수록기간

  2001~2011

• 십진분류

  KDC 005 DDC 005