Title :
Intra and inter-PON ONU to ONU virtual private networking using OFDMA in a ring topology
Author :
Deng, Lei ; Zhao, Ying ; Pang, Xiaodan ; Yu, Xianbin ; Liu, Deming ; Monroy, Idelfonso Tafur
Author_Institution :
Sch. of Optoelectron. Sci. & Eng., HuaZhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
In this paper, we propose a novel WDM-PON architecture to support efficient and bandwidth-scalable virtual private network (VPN) emulation over both inter-PON and intra-PON. The virtual ring link for the VPN communications among ONUs is realized by using additionally low-cost optical passive components and OFDMA technology. Moreover, the downstream traffic wavelength is reused for the upstream traffic signal by using re-modulation technology. We report on a successful transmission of 10.7 Gbps OOK upstream and 10.7 Gbps DPSK downstream, together with 1.25 Gbps 16-QAM OFDM VPN traffic, over 20 km no-zero dispersion shifted fiber (NZDSF).
Keywords :
OFDM modulation; amplitude shift keying; differential phase shift keying; frequency division multiple access; optical modulation; passive optical networks; quadrature amplitude modulation; telecommunication network topology; telecommunication traffic; virtual private networks; wavelength division multiplexing; 16-QAM OFDM VPN traffic; DPSK downstream; OFDMA technology; ONU virtual private networking; OOK upstream; VPN communications; VPN emulation; WDM-PON architecture; bandwidth-scalable virtual private network; bit rate 1.25 Gbit/s; bit rate 10.7 Gbit/s; distance 20 km; downstream traffic wavelength; inter-PON ONU; intra-PON; low-cost optical passive components; no-zero dispersion shifted fiber; re-modulation technology; ring topology; upstream traffic signal; virtual ring link; Optical attenuators; Optical fibers; Optical filters; Optical receivers; Passive optical networks; Virtual private networks; Optical access networks; orthogonal frequency division multiple access (OFDMA); passive optical network (PON); virtual private network (VPN);
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088698
