Ms. Fei Gao Profile

Fei Gao

at Beijing Univ of Posts and Telecommunications

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Proceedings Article | 19 November 2007 Paper

A load-balance path selection algorithm in automatically swiched optical network (ASON)

Fei Gao, Yueming Lu, Yuefeng Ji

Proceedings Volume 6783, 67833J (2007) https://doi.org/10.1117/12.742838

KEYWORDS: Optical networks, Computer simulations, Lead, Networks, Lutetium, Data modeling, Optical communications, Telecommunications, Transmittance, Switching

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In this paper, a novel load-balance algorithm is proposed to provide an approach to optimized path selection in automatically swiched optical network (ASON). By using this algorithm, improved survivability and low congestion can be achieved. The static nature of current routing algorithms, such as OSPF or IS-IS, has made the situation worse since the traffic is concentrated on the "least-cost" paths which causes the congestion for some links while leaving other links lightly loaded. So, the key is to select suitable paths to balance the network load to optimize network resource utilization and traffic performance. We present a method to provide the capability to control traffic engineering so that the carriers can define their own strategies for optimizations and apply them to path selection for dynamic load balancing. With considering load distribution and topology information, capacity utilization factor is introduced into Dijkstra (shortest path selection) for path selection to achieve balancing traffic over network. Routing simulations have been done over mesh networks to compare the two different algorithms. With the simulation results, a conclusion can be made on the performance of different algorithms.

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