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

Author

Weng, Weiwen ; Liu, Yuan´an ; Hu, Hefei ; Yuan, Dongming ; Zhu, Xianglin

Author_Institution

Beijing Univ. of Posts & Telecommun. (BUPT), Beijing, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

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.

Keywords

OFDM modulation; cognitive radio; minimum shift keying; ultra wideband communication; MB-OFDM UWB systems; OFDM-MSK modulation scheme; cognitive radio; minimum-shift keying; multi-carrier modulation systems; out-of-band attenuation; roll-off sidelobe spectrum; Attenuation; Binary phase shift keying; Chromium; Cognitive radio; Interference cancellation; OFDM; Quadrature amplitude modulation; Quadrature phase shift keying; Radiofrequency interference; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5305449

Filename

5305449