000			03464cas|a2200397 a 4500
005			20260818090233.0
008			090115s2007 th uu|m rtt 0| a1eng d
035			_a.b12044568
099		9	_aAIT Diss. no.TC-07-01
100	0		_aAreeyata Sripetch
245	1	0	_aDesign of DWDM networks for power utilities
260			_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2007
300			_a108 leaves : _bill.
490	1		_aDissertation ; _vno. TC-07-01
500			_aA dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering in Telecommunications, School of Engineering and Technology
502			_aThesis (Ph.D.) - Asian Institute of Technology, 2007
520			_aOn top of a power grid used to distribute electricity, a dense wavelength division multiplexing (DWDM) based optical network can be constructed to be a scalable backbone network that can reach almost all remote areas of the country. This dissertation proposes a complete optimization procedure for optical network design based on an existing power grid. We design a network as a sub graph of the power grid and divide the network topology into two layers: backbone and access networks. The design procedure includes physical topology design, routing and wavelength assignment (RWA) and optical amplifier placement. We formulate the problem of topology design into two steps: selecting the concentrator nodes with their node members and finding the connections among concentrators subject to the two-connectivity constraint on the resultant backbone topology. These two problems are formulated as integer linear programming (ILP) problems. Since the ILP problem for the concentrator connection problem grows intractable for large networks, a heuristic algorithin is developed. For RWA and optical amplifier placement problem, we solve these two problems together since they are closely related. As the ILP for solving these two problems becomes intractable with increasing network size, we propose a simulated annealing approach. We choose a neighborhood structure based on path-switching operations using k shortest paths for each source and destination pair. The optimal number of optical ilmplifiers is solved based on local search among these neighbors. We solve and present numerical results for 3D-node and IDO-node randomly generated power grid topologies and for actual EGAT's power grid topology.
650		0	_aTopology
650		0	_aSimulated annealing (Mathematics)
700	0		_aPoompat Saengudomlert, _eChairperson
700	1		_aErke, Tapio J., _eExamination Committee
700	1		_aDutta, Joydeep, _eExamination Committee
700	1		_aChan, Vincent W.S., _eExamination committee
810	2		_aAsian Institute of Technology. _tDissertation ; _vno. TC-07-01
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B00854
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909			_aBarcode : 30050120565493 _bCREATED : 2012-08-31 _cRECORD # : i12691860 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
909			_aBarcode : 30050120235170 _bCREATED : 2016-03-29 _cRECORD # : i12911173 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
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