Title :
All-optical router with pulse-position modulation header processing in high-speed photonic packet switching networks
Author :
Le-Minh, H. ; Ghassemlooy, Zabih ; Ng, W.P. ; Chiang, M.F.
Author_Institution :
NCRLab, Northumbria Univ., Newcastle upon Tyne, UK
fDate :
3/1/2009 12:00:00 AM
Abstract :
In future high-speed photonic packet switching networks, it is highly desirable to carry out robust all-optical header recognition to provide high-throughput routing. The authors present a pulse-position modulation header processing (PPM-HP) scheme, offering significantly reduced routing table size and employing a single bit-wise AND operation to carry out correlation of the packet header with the entire routing table entries. The downsized routing table also offers multiple transmission modes (unicast, multicast and broadcast) in the optical layer and improves core network scalability where the number of core/edge nodes could be altered without the need for changing the number of routing table entries. The authors present modelling and simulation of the packet switching router based on PPM-HP. Noise propagation and crosstalk incurred in a multiple-hop routing scenario are investigated. The simulation results are presented and compared with the theoretical calculations.
Keywords :
high-speed optical techniques; optical communication equipment; optical correlation; optical crosstalk; optical fibre networks; optical modulation; optical noise; packet switching; pulse position modulation; telecommunication network routing; PPM-HP scheme; all-optical header recognition; all-optical router; broadcast modes; core network scalability; high-speed photonic packet switching network; multicast modes; multiple transmission modes; multiple-hop routing scenario; noise propagation; optical correlation; optical crosstalk; optical layer; pulse-position modulation header processing; routing table entries; routing table size; single bit-wise AND operation; unicast modes;
Journal_Title :
Communications, IET
DOI :
10.1049/iet-com:20070505