A low-cost time-hopping impulse radio system for high data rate transmission

  • Authors:

  • Andreas F. Molisch;Ye Geoffrey Li;Yves-Paul Nakache;Philip Orlik;Makoto Miyake;Yunnan Wu;Sinan Gezici;Harry Sheng;S. Y. Kung;H. Kobayashi;H. Vincent Poor;Alexander Haimovich;Jinyun Zhang

  • Affiliations:

  • MERL Technology Lab, Mitsubishi Electric Research Laboratories, Cambridge, MA;School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA;MERL Technology Lab, Mitsubishi Electric Research Laboratories, Cambridge, MA;MERL Technology Lab, Mitsubishi Electric Research Laboratories, Cambridge, MA;Information Technology R&D Center, Mitsubishi Electric Corporation, Kanagawa, Japan;Department of Electrical Engineering, Princeton University, NJ;Department of Electrical Engineering, Princeton University, NJ;5Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ;Department of Electrical Engineering, Princeton University, NJ;4Department of Electrical Engineering, Princeton University, NJ;Department of Electrical Engineering, Princeton University, NJ;Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ;MERL Technology Lab, Mitsubishi Electric Research Laboratories, Cambridge, MA

  • Venue:
  • EURASIP Journal on Applied Signal Processing
  • Year:
  • 2005

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Abstract

We present an efficient, low-cost implementation of time-hopping impulse radio that fulfills the spectral mask mandated by the FCC and is suitable for high-data-rate, short-range communications. Key features are (i) all-baseband implementation that obviates the need for passband components, (ii) symbol-rate (not chip rate) sampling, A/D conversion, and digital signal processing, (iii) fast acquisition due to novel search algorithms, and (iv) spectral shaping that can be adapted to accommodate different spectrum regulations and interference environments. Computer simulations show that this system can provide 110 Mbps at 7-10 m distance, as well as higher data rates at shorter distances under FCC emissions limits. Due to the spreading concept of time-hopping impulse radio, the system can sustain multiple simultaneous users, and can suppress narrowband interference effectively.