The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design and Performance Analysis of 60GHz Wireless Communication System for Low Power Consumption and High Link Quality

저전력 및 고품질의 60GHz대역 무선 통신 시스템 설계와 성능 분석

  • Received : 2012.10.23
  • Accepted : 2013.01.23
  • Published : 2013.02.28
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Abstract

In this paper, we design and analyze digital retrodirective array antenna (RDA) system in 60GHz wireless communication for low power consumption and high quality. Digital RDA can automatically make beam toward source without information about the direction of incoming signal, this system is able to do low power communication thanks to increased signal to interference noise ratio (SINR) because making the beam toward source can reduce interference signals. The frequency offset seriously arises when millimetric wave band like 60GHz is used to communicate for high-speed transmission. The proposed system is robustly designed to frequency offset through designing digital phase lock loop in order to solve the problem of frequency offset. In this paper, we analyze the performance of the proposed system according to the number of array antenna and frequency offset. striking space.

본 논문에서는 저전력 고품질의 60GHz 대역 무선 통신을 위한 디지털 역지향성 안테나 시스템의 설계와 성능을 분석하였다. 디지털 역지향성 안테나는 수신된 방향에 대한 정보 없이 자동적으로 빔을 신호원 방향으로 생성할 수 있다. 제안된 시스템은 신호원 방향으로 빔을 형성하여 간섭 신호를 감소시키고 SINR 을 향상시킴으로써 저전력 통신이 가능하다. 초고속 통신을 위해서 60GHz 와 같은 밀리미터파 대역에서 통신을 할 경우 주파수 오프셋이 심하게 발생된다. 본 논문에서는 디지털 PLL 을 사용하여 주파수 오프셋에 강한 시스템을 설계하였다. 또한, 안테나 수에 따른 빔 성능 및 디지털 역지향성 안테나의 위상 공액 기법을 사용한 경우에 대해서 주파수 오프셋을 고려하여 성능을 분석하였다.

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References

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