Publication IEICE TRANSACTIONS on CommunicationsVol.E91-BNo.2pp.518-526 Publication Date: 2008/02/01 Online ISSN: 1745-1345 DOI: 10.1093/ietcom/e91-b.2.518 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: impulse radio, LR-WPAN, UWB, wireless sensor networks,
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Summary: A direct-sequence ultra-wideband impulse radio (DS-UWB-IR) system is developed for low-power wireless applications such as wireless sensor networks. This system adopts impulse radio characterized by a low duty cycle, and a direct-sequence 0.7-GHz bandwidth, which enables low-power operation and extremely precise positioning. Simulation results reveal that the system achieves a 250-kbps data rate for 30-m-distance wireless communications using realistic specifications. We also conduct an experiment that confirms the feasibility of our system.