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Abstract
Internet is growing at a very fast rate. So, its demand for network capacity is huge. lptical switching technologies make use of wavelength division multiplexing (WDM) to cater ) this rising demand. The most promising technology for today that can support these etworks is optical burst switching (OBS) that offers all-optical transmission, high-speed data ltes and format transparent switching. Many studies have focused on the OBS core and edge odes, their architecture, wavelength converter capabilities, burst assembly and signaling :heme. On the other hand, insufficient research is done paying attention for the complete IBS network including burst routing and network analysis and design.
In this thesis, we elaborate on earlier trends to propose a new routing metric based on Jrst loss ratio (BLR). The new metric takes into account the effect of some optical U”lUneters such as number of channels, traffic load and link bandwidth on BLR and thus on e new routing decision. It is found that, the BLR is decreased by more than 22% in some pologies after using the new routing metric instead of simple link bandwidth dependent uting metric. Also, for further decreasing the BLR, a new unequal load balance routing ISed on the preceding routing metric is described. In addition, a complete algorithm for lequal load balance routing is illustrated. Results show that using previous load balance uting decreases the DROP rate, in some topologies, by more than 50%. This is achieved in mparison with using single path routing using the new routing metric. Finally, a new ’plication is developed for OBS network analysis, design and upgrade purposes. This ’plication is used for any topology depending on the previously proposed routing metric.