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The existing car parking system in Malaysia usually required the car drivers to search an empty parking space in the car park without providing detail direction toward the available parking space. As the result, drivers may waste a lot of time and unnecessary energy while they turn around in the car park without direction and may cause car traffic congestion in parking space. This paper investigates...
This paper proposes a hybrid buffering architecture using feed-forward and feedback shared FDLs to resolve packet contention resolution of an optical packet switch. Feed-forward FDLs are used as primary buffer and feedback FDLs are implemented as supplementary buffer. The proposed switch can avoid time slot overlapping which enables to use FDL resources in a highly efficient manner. It is found that...
Packet contention is a major issue in optical packet switching network and it is not a trivial task to resolve contention due to lack of optical RAM technology. In order to resolve contention optical buffering approach is used which is usually implemented using fiber delay line (FDL). Most of the existing optical buffering schemes are output-based which require huge number of FDLs as well as larger...
Packet contention is a major issue in optical packet switching network. To resolve contention, optical buffering approach is used using Fiber Delay Lines (FDLs). Yet there is a heavy packet loss rate due to unavailability of output-port and free FDLs. This paper proposes a selective minimum delay value algorithm (SMDV) to resolve contention for shared FDL buffering architecture in order to ensure...
A RWA linear programming formulation was formulated and ILP solver was used along with good approximation techniques (heuristic) to solve the static RWA problem The objective was to maximize the one hop traffic, given a set of lightpath requests/traffic demand. However, the proposed heuristic has the limitation of stagnation. Thus we applied ant colony optimization (ACO) combined with heuristic algorithm...
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