Routing and traffic engineering in hybrid RF/FSO networks
Routing and traffic engineering in hybrid RF/FSO networks
复制标题
混合 RF/FSO 网络中的路由和流量工程
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
M. Shayman
中科院分区:
文献类型:
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作者:
Abhishek Kashyap;M. Shayman
We provide a routing framework for hybrid RF/FSO backbone networks, utilizing the characteristics of RF and free space optical (FSO) links. FSO links offer higher bandwidth and security, while RF links offer more reliability. We propose the concept of criticality index for different classes of traffic and providing obscuration-tolerant paths to the traffic in a weighted max-min fair way. We provide an optimal algorithm for the case where a traffic demand can be routed along multiple paths. The problem of routing unsplittable traffic is NP-hard, so we propose efficient heuristics for routing them. We do extensive simulations to demonstrate that our algorithms outperform the algorithms currently in use.