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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Novel UWB Transceiver for WBAN Networks: A Study on AWGN Channels

  • Zhao, Chengshi (UWB-ITRC, Graduate School of Information Technology and Telecommunications, Inha University, Wireless Network Laboratory, Beijing University of Posts and Telecommunications) ;
  • Zhou, Zheng (Wireless Network Laboratory, Beijing University of Posts and Telecommunications) ;
  • Kwak, Kyung-Sup (UWB-ITRC, Graduate School of Information Technology and Telecommunications, Inha University)
  • Received : 2008.12.30
  • Accepted : 2009.10.01
  • Published : 2010.02.28
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Abstract

A novel ultra-wideband (UWB) transceiver structure is presented to be used in wireless body area networks (WBANs). In the proposed structure, a data channel and a control channel are combined into a single transmission signal. In the signal, a modulation method mixing pulse position modulation and pulse amplitude modulation is proposed. A mathematical framework calculating the power spectrum density of the proposed pulse-based signal evaluates its coexistence with conventional radio systems. The transceiver structure is discussed, and the receiving performance is investigated in the additive white Gaussian noise channel. It is demonstrated that the proposed scheme is easier to match to the UWB emission mask than conventional UWB systems. The proposed scheme achieves the data rate requirement of WBAN; the logical control channel achieves better receiving performance than the logical data channel, which is useful for controlling and maintaining networks. The proposed scheme is also easy to implement.

Keywords

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