标题：Cognitive Ultra-Wideband Radio Based on Adpative Spectrum Allocation and Rake Receiver
作者：Cui, Wentao; Hai, Cao; Li, Xiangyang
作者机构：[Cui, Wentao; Hai, Cao] Shandong Univ Weihai, Sch Informat Engn, Weihai, Shandong, Peoples R China.; [Li, Xiangyang] Univ Int Relat Hangzhou, Hangzh 更多
会议名称：5th International Conference on Wireless Communications, Networking and Mobile Computing
会议日期：SEP 24-26, 2009
来源：2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8
关键词：adaptive spectrum allocation; Cognitive radio; Ultra-wideband; multipath; channel model; Rake Receiver
摘要：Cognitive ultra-wideband(UWB) radio is supposed to economically solve the evermore serious problem of a spectrum scarcity at frequencies. In order to achieve this purpose, adaptive UWB pulse generation and spectrum allocation algorithm are investigated for utilizing the unique capability of UWB and Cognitive Radio technology. In this paper, an adaptive pulse generation algorithm based on a new pulse waveform design method of ultra wideband pulse is presented and employed into an UWB communication system with different Rake receiver, which can explore the adaptive pulse generation to realize a high date rate and high performance cognitive radio communication system. We evaluate this cognitive ultra-wideband radio system in a multi-path channel model proposed by the 802.15.3a Working Group and give the BER performance. With concern of acceptable complexity of system structure and low interference to primary (often licensed) users, this proposed scheme can be applied to different scenario.