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Communications and Sensor Networks Lab.

Research

Wireless Sensor Networks Group

This group is researching on current issues in the field of Wireless Sensor Networks (WSNs). WSNs consist of a large number of distributed autonomous devices equipped with computation, sensing, data processing, and wireless communication capabilities to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations. WSNs has found application in various areas including environment and habitat monitoring, healthcare, home automation, military application, traffic control, commercial and industrial applications).
Although WSNs is a very active and attractive research area due to its diverse applications, however, certain resolution still exists for the design problems. These include fault tolerance, scalability, low cost, low power consumption, and topology maintenance. Our main research issues are as follows:

Fading Channel Transmission Techniques Under Cooperative Robot Squads

  • Sponsor: Korea Agency For Defense Development (ADD)
  • Project Leader: Saewoom Lee

Research on the robust wireless communication network system and structure for Unmanned Ground Vehicles (UGV) controlled remotely.

  • For signal distortion compensation from non-line-of-sight operating status.
  • For strong transmission technique in ground robot activity territory which has deep fading channel.
  • For organization the stable transport link under physical/electrical restricting by the characteristics as small-sized and limited energy.
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To develop the techniques for wireless mobile communication using by UGV

Robot communication techniques based on rapid transmission, low transmission power, security, etc.

  • KAIST : Research on the MIMO-OFDM techniques based on Physical layer for the unmanned robots.
    • Distributed beamforming with 1 bit feedback and two stage beamforming.
  • GIST : Research on the MAC and routing protocols under the deep fading channel environment.
    • Delay sensitive MAC protocol and robust routing protocol.
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