Title :
The theorem and performance analysis of 1/3 Continuous Phase Chirp Keying modulation
Author :
Sun Zhiguo ; Yan Huiqiang ; Ning Xiaoyan
Author_Institution :
Coll. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin, China
Abstract :
In order to increase frequency efficiency in bandwidth-limited wireless communication, a new digital band-pass modulation method named as 1/3 Continuous Phase Chirp Keying (1/3-CPCK) was proposed. Using very minimum frequency shift chirp (VMFS-chirp) signal as carrier, energy concentration of 1/3-CPCK modulated signal is high. The characteristics of modulated signal and system were analyzed such as energy concentration and orthogonality as well as the ability of AWGN suppression in total-band and band-limited channel. Theoretical analysis and simulation results shows that compared with VMCK modulated signal 1/3-CPCK modulated signal has a higher energy concentration. In bandwidth limited AWGN channel, orthogonal 1/3-CPCK system, based on coherent demodulation has 3dB processing gain compared with VMCK system.
Keywords :
AWGN channels; chirp modulation; continuous phase modulation; demodulation; frequency shift keying; wireless channels; 1-3 continuous phase chirp keying modulation; 1-3-CPCK modulated signal; AWGN channel; VMCK system; VMFS-chirp signal; band-limited channel; bandwidth-limited wireless communication; coherent demodulation; digital band-pass modulation method; energy concentration; very minimum frequency shift chirp signal; 1/3 Continuous Phase Chirp Keying (1/3-CPCK); Orthogonal 1/3-CPCK; Very Minimum Chirp Keying (VMCK); bandwidth limited wireless communication;
Conference_Titel :
Computer Science and Network Technology (ICCSNT), 2012 2nd International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4673-2963-7
DOI :
10.1109/ICCSNT.2012.6526034
