کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4957231 | 1444951 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Logical topology optimization of free space optical networks with tracking transceivers
ترجمه فارسی عنوان
بهینه سازی توپولوژی منطقی شبکه های نوری فضای آزاد با فرستنده های ردیابی
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کلمات کلیدی
ارتباطات نوری فضایی آزاد، شبکه نوری، زنده ماندن، مسیریابی پویا، بهینه سازی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی
This paper proposes a transceiver system for automatic tracking and dynamic routing for free space optical (FSO) communication. The proposed transceiver architecture has M transmitters and M receivers in a MÃM configuration that has the capability to dynamically orient themselves at different angles to establish a link between two nodes. It also addresses the problem of optimizing and designing logical topologies for FSO communications using tracking transceivers. Whereas the physical topology consists of nodes, transmitters and receivers that can orient themselves in different directions, the logical topology consists of a set of lightpaths and the set of nodes originating or terminating the lightpaths. A lightpath in a logical topology is a combination of one or more physical links using transmitters and receivers with the same wavelength. For a given physical topology and traffic pattern, the main challenge is to establish an optimal logical topology so as to minimize congestion. We formulate a mixed integer linear programming (MILP) methodology for constructing logical topologies in FSO networks with tracking transceivers. The main objective of the mathematical formulation is to minimize the maximum offered load on any physical link so as to minimize congestion in the network. Given a fixed number of resources, in comparison to a fixed FSO architecture, the proposed architecture reduces the blocking probability further as well as increases the percentage recovery of traffic affected by a single link failure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Switching and Networking - Volume 24, April 2017, Pages 57-64
Journal: Optical Switching and Networking - Volume 24, April 2017, Pages 57-64
نویسندگان
Rabindra Ghimire, Seshadri Mohan,