Optical burst switching (OBS) is a promising technology for the
next generation optical Internet. A buffer-less OBS network can be
implemented using ordinary optical communication equipment without the
need for either wavelength converters or optical memories. However, OBS
networks suffer from a relatively high blocking probability, a primary
metric of interest, because of contention. In this paper, an efficient deflection
routing scheme for buffer-less OBS networks has been proposed in order to
reduce blocking probability (Packet loss) caused by Offset Time (OT) and
burst contention. Simulation results have shown that the proposed scheme
reduces blocking probability effectively and also it maintains a reasonable
end-to-end delay for each burst. Thus, it improves the overall network
performance by reducing the burst blocking probability effectively.
