Cognitive Implementation of Chirp Waveform in UWB System

• SHEN Hanbing

  Research Center, UWB ITRC, Inha University

• ZHANG Weihua

  Research Center, UWB ITRC, Inha University

• KWAK Kyung Sup

  Research Center, UWB ITRC, Inha University The Institute of Electronics, Information and Communication Engineers

抄録

Cognitive Radios (CR) can recognize the communication environment and switch its communication scheme to more efficiently and flexibly utilize the radio spectrum. The performance of ultra wideband (UWB) degrades if interference is not suppressed properly. We propose here a series of adaptive chirp waveforms in UWB systems. By designing waveform shaping of both linear chirp and non-linear cases, we avoid the estimated spectrum of the on-going applications without the necessity of notch filters, and thus reduce the system complexity. We evaluate system performance of the proposed scheme by simulations and verify that the proposed scheme is a candidate for cognitive UWB systems.

収録刊行物

• IEICE Transactions on Communications

  IEICE Transactions on Communications E91-B (1), 147-150, 2008

  一般社団法人 電子情報通信学会

キーワード

• chirp spread spectrum (CSS)
• cognitive radio (CR)
• ultra-wideband (UWB)
• chirp waveform

詳細情報

• CRID: 1390001204376414720
• NII論文ID: 10026826569
• NII書誌ID: AA10826261
• DOI: 10.1093/ietcom/e91-b.1.147
• ISSN: 17451345
• ISSN: 09168516
• Web Site: https://www.jstage.jst.go.jp/article/transcom/E91.B/1/E91.B_1_147/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可