JP3811147B2 - 波長分割多重方式を利用する環状通信ネットワークの波長割当方法 - Google Patents
波長分割多重方式を利用する環状通信ネットワークの波長割当方法 Download PDFInfo
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- JP3811147B2 JP3811147B2 JP2003280788A JP2003280788A JP3811147B2 JP 3811147 B2 JP3811147 B2 JP 3811147B2 JP 2003280788 A JP2003280788 A JP 2003280788A JP 2003280788 A JP2003280788 A JP 2003280788A JP 3811147 B2 JP3811147 B2 JP 3811147B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
- H04J14/0283—WDM ring architectures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Small-Scale Networks (AREA)
Description
G. Ellinas, K. Bala and G.-K. Chang, "A Novel Wave-length Assignment Algorithm for 4-fiber WDM Self-Healing Rings," Proc. of ICC '98, 1998, pp.197-201.)[OR PLEASE PROVIDE ANOTHER SITE FOR THIS REFERENCE TO ELLINAS].
Claims (3)
- N個のノードと、該N個のノードをそれぞれ順に接続する少なくとも1対の光ファイバを備える波長分割多重方式を利用するリング通信ネットワークにおける相互に異なる2つのノード間の所定波長割当方法において、
N−1個のノードに対する光パスの構成及び波長割当を表示する行列を構成する過程と、
所定列を前記行列の該当位置に追加して拡張した後、該追加列にXを割り当てる過程と、
前記行列にN/2だけ行を追加する過程と、
前記追加列を中心に各行に対して左にトラッキングしつつ最初に出会う数字を選択して1だけ増加させる過程と、
前記追加列における追加行の該当位置に数字1、2、・・・、LmaxとしてN/2を割り当て、該当ホップ数だけ行に従ってXを割り当てる過程と、
各追加行に沿って右にトラッキングしながら空位置を検索し、該空位置に数字1、2、・・・、N/2のうち使用していない値を割り当て、該当ホップ数だけ行に従ってXを割り当てる過程と、を含んでなり、
前記Nが偶数で、前記Xは該当ノードの光パスを形成しないことを示し、各列が1からLmaxであるN/2までのすべての値を有するようにホップ数を割り当てることを特徴とする波長分割多重方式リング通信ネットワークの波長割当方法。 - 前記N−1個のノードに対する波長割当を表示する行列を構成する過程は、
列数が前記N−1個のノード数と同一で、行数が前記N−1個のノード数に必要な波長数の下限値Wと同一な行列を構成する過程と、
前記行列の第1列に数字{1,2,・・・,Lmax}の集合を順に割り当て、数字を割り当てない位置にはXを割り当て、前記割り当てられた数字が対応するホップ数だけ行に従ってXを割り当てる過程と、
前記行列を右に進行しつつ、前列に使用した集合をローテイトさせて順に割り当て、残りの位置にはXを割り当てる過程と、を含んでなる請求項1記載の波長分割多重方式リング通信ネットワークの波長割当方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0044403A KR100454932B1 (ko) | 2002-07-27 | 2002-07-27 | 파장분할 다중방식을 이용한 링형 통신망의 파장할당 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004064794A JP2004064794A (ja) | 2004-02-26 |
JP3811147B2 true JP3811147B2 (ja) | 2006-08-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003280788A Expired - Fee Related JP3811147B2 (ja) | 2002-07-27 | 2003-07-28 | 波長分割多重方式を利用する環状通信ネットワークの波長割当方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7277632B2 (ja) |
EP (1) | EP1387515A3 (ja) |
JP (1) | JP3811147B2 (ja) |
KR (1) | KR100454932B1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7769296B1 (en) | 2005-02-17 | 2010-08-03 | At&T Intellectual Property Ii, L.P. | Arrangement for reducing multiplexing and demultiplexing cost in ultra long haul (ULH) all-optical networks by minimizing number of required mux/demux groups |
JP4388556B2 (ja) * | 2007-01-09 | 2009-12-24 | 株式会社日立コミュニケーションテクノロジー | パッシブ光ネットワークシステムおよび波長割当方法 |
CN101834690B (zh) * | 2010-04-27 | 2014-03-12 | 中兴通讯股份有限公司 | 一种波长分配的计算方法及装置 |
EP2634940B1 (en) * | 2010-10-25 | 2015-09-23 | Nippon Telegraph And Telephone Corporation | Method and device for frequency allocation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE503258C2 (sv) * | 1995-02-06 | 1996-04-29 | Ericsson Telefon Ab L M | Förfarande för tilldelning av våglängdskanaler i ett optiskt bussnät |
US5999288A (en) * | 1998-02-02 | 1999-12-07 | Telcordia Technologies, Inc. | Connection set-up and path assignment in wavelength division multiplexed ring networks |
US6476945B1 (en) * | 1999-06-01 | 2002-11-05 | Nortel Networks Limited | Wavelength allocation in a ring |
JP2001103081A (ja) * | 1999-09-30 | 2001-04-13 | Toshiba Corp | 光波長多重リングネットワークシステムにおけるフルメッシュパス設定方法とフルメッシュパス設定プログラムを記録した記録媒体 |
JP2001160785A (ja) * | 1999-12-01 | 2001-06-12 | Toshiba Corp | 波長多重リングネットワークシステム及びその波長割当方法 |
KR100572111B1 (ko) * | 1999-12-28 | 2006-04-17 | 주식회사 케이티 | 동기식 디지털 계위(SDH)/파장분할다중화(WDM)링(Ring)에서의 파장할당 방법 |
KR20010075768A (ko) * | 2000-01-17 | 2001-08-11 | 이재승 | 단일 광섬유 링형 광통신 장치 |
KR100407345B1 (ko) * | 2001-10-12 | 2003-11-28 | 삼성전자주식회사 | 파장분할 다중방식을 이용한 링형 통신망의 파장 할당 방법 |
-
2002
- 2002-07-27 KR KR10-2002-0044403A patent/KR100454932B1/ko not_active IP Right Cessation
-
2003
- 2003-07-15 US US10/619,694 patent/US7277632B2/en not_active Expired - Fee Related
- 2003-07-28 JP JP2003280788A patent/JP3811147B2/ja not_active Expired - Fee Related
- 2003-07-28 EP EP03017099A patent/EP1387515A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2004064794A (ja) | 2004-02-26 |
KR100454932B1 (ko) | 2004-11-06 |
KR20040011067A (ko) | 2004-02-05 |
US20040028410A1 (en) | 2004-02-12 |
EP1387515A3 (en) | 2007-08-01 |
US7277632B2 (en) | 2007-10-02 |
EP1387515A2 (en) | 2004-02-04 |
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