講演抄録/キーワード |
講演名 |
2008-06-12 15:15
Modelling the Impact of GVD on the Performance of 2-D WH/TS OCDMA Systems Anh T. Pham・○Ngoc T. Dang(Computer Comm. Lab.) OCS2008-11 |
抄録 |
(和) |
This report proposes a novel model of Gaussian pulse propagation in optical fiber to comprehensively analyze the impact of Group Velocity Dispersion (GVD) on the performance of two-dimensional wavelength hopping/time spreading optical code division multiple access (2-D WH/TS OCDMA) systems. In addition, many noise and interferences, including multiple access interference (MAI), optical beating interference (OBI), and receiver's noise are included in the analysis. Besides, we propose to use the heterodyne detection receiver so that the receiver's sensitivity can be improved. Analytical results show that, under the impact of GVD, the number of supportable users is extremely decreased and the maximum transmission length (i.e. the length at which BER <= 10-9 can be maintained) is remarkably shortened; and it is found that the main factor that limits the system performance is time skewing. |
(英) |
This report proposes a novel model of Gaussian pulse propagation in optical fiber to comprehensively analyze the impact of Group Velocity Dispersion (GVD) on the performance of two-dimensional wavelength hopping/time spreading optical code division multiple access (2-D WH/TS OCDMA) systems. In addition, many noise and interferences, including multiple access interference (MAI), optical beating interference (OBI), and receiver's noise are included in the analysis. Besides, we propose to use the heterodyne detection receiver so that the receiver's sensitivity can be improved. Analytical results show that, under the impact of GVD, the number of supportable users is extremely decreased and the maximum transmission length (i.e. the length at which BER <= 10-9 can be maintained) is remarkably shortened; and it is found that the main factor that limits the system performance is time skewing. |
キーワード |
(和) |
two-dimensional optical CDMA / group velocity dispersion / heterodyne detection / fiber Bragg gratings / / / / |
(英) |
two-dimensional optical CDMA / group velocity dispersion / heterodyne detection / fiber Bragg gratings / / / / |
文献情報 |
信学技報, vol. 108, no. 83, OCS2008-11, pp. 7-14, 2008年6月. |
資料番号 |
OCS2008-11 |
発行日 |
2008-06-05 (OCS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
OCS2008-11 |
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