Title :
Terahertz communication based on high order digital modulation
Author :
Cheng, Wang ; Changxing, Lin ; Xianjin, Deng ; Shiwei, Xiao
Author_Institution :
Inst. of Electron. Eng., China Acad. of Eng. Phys., Mianyang, China
Abstract :
We have developed a 0.14THz wireless link with 10Gbit/s data rate. Terahertz signal is generated and detected by Schottky diode superheterodyne transmitter and receiver. 16QAM high order digital modulation/demodulation has been successfully applied in IF signal processing, which works with non real time software method and could improve the spectrum efficiency and carrier noise rate (CNR). The system has successfully transmitted 10Gbit/s data rate signal over 0.5km with bit error rate (BER)<;10-6, CNR>;35dB. The maximum transmission distance is estimated to be about 1.5km.
Keywords :
Schottky diodes; error statistics; quadrature amplitude modulation; radio links; signal detection; superheterodyne receivers; 16QAM high order digital demodulation; 16QAM high order digital modulation; BER; CNR; IF signal processing; Schottky diode superheterodyne receiver; Schottky diode superheterodyne transmitter; bit error rate; carrier noise rate; distance 0.5 km; frequency 0.14 THz; maximum transmission distance; real time software method; terahertz communication; terahertz signal detection; wireless link; Bandwidth; Bit error rate; Digital modulation; Frequency modulation; Optical transmitters; Receivers;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105253
