Title :
A differential pulse position width modulation for optical wireless communication
Author :
Ai-ping, Huang ; Yang-Yu, Fan ; Yuan-Kui, Liu ; Meng, Jia ; Bai Bo ; Qing-Gui, Tan
Author_Institution :
Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an
Abstract :
A new scheme called differential pulse position width modulation (DPPM+PWM) in wireless optical communication is discussed. Compared to pulse position modulation (PPM), it does not need symbol synchronization when receiving signals. And it effectively solves the problem of the narrow transmitting pulse width in both differential pulse position modulation (DPPM) and PPM. The symbol structure, the power efficiency, bandwidth efficiency and error performance are analyzed and compared with OOK, PPM, DPPM and PWM. Basing on the given model, the stimulation results show that DPPM+PWM achieves greater ability to bandwidth efficiency and simplifies the receiver. Those improve DPPM+PWM a quite suitable scheme in the wireless optical communication system.
Keywords :
optical links; optical modulation; pulse position modulation; pulse width modulation; DPPM; PWM; bandwidth efficiency; differential pulse position width modulation; error performance; optical wireless communication; power efficiency; symbol structure; Bandwidth; Error analysis; Optical fiber communication; Optical modulation; Optical pulses; Optical receivers; Pulse modulation; Pulse width modulation; Space vector pulse width modulation; Wireless communication; bandwidth efficiency; differential pulse position width Modulation; packet error rate; power efficiency; wireless optical communication;
Conference_Titel :
Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-2799-4
Electronic_ISBN :
978-1-4244-2800-7
DOI :
10.1109/ICIEA.2009.5138501
