A Novel OFDM-MSK Scheme for MB-OFDM UWB based on Cognitive Radio

被引:0
|
作者
Weng, Weiwen [1 ]
Liu, Yuan'an [1 ]
Hu, Hefei [1 ]
Yuan, Dongming [1 ]
Zhu, Xianglin [1 ]
机构
[1] Beijing Univ Posts & Telecommun, Beijing 100088, Peoples R China
关键词
MSK; MB-OFDM UWB; CR; carrier frequency offset(CFO); inter-carrier interference(ICI); OFDM-MSK;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Minimum-shift Keying (MSK) has a fast roll-off sidelobe spectrum, which is an excellent property for multi-carrier modulation (MCM) systems. In this paper, we propose a novel OFDM-MSK modulation scheme and introduce it to MB-OFDM UWB systems based on Cognitive Radio (CR). Therefore, the new system has a better out-of-band attenuation property. In such situations, when incumbent radio services are detected, without additional measures, only by tuning off the sub-carriers on the corresponding interference frequency band, the requirements of MB-OFDM UWB systems based on CR can be satisfied, and the interference on incumbent users will be cancelled sufficiently.
引用
收藏
页码:1669 / 1672
页数:4
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