World Journal of Engineering Research and Technology (WJERT) has indexed with various reputed international bodies like : Google Scholar , Index Copernicus , Indian Science Publications , SOCOLAR, China , International Institute of Organized Research (I2OR) , Cosmos Impact Factor , Research Bible, Fuchu, Tokyo. JAPAN , Scientific Indexing Services (SIS) , Jour Informatics (Under Process) , UDLedge Science Citation Index , International Impact Factor Services , International Scientific Indexing, UAE , International Society for Research Activity (ISRA) Journal Impact Factor (JIF) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Scientific Journal Impact Factor (SJIF) , Science Library Index, Dubai, United Arab Emirates , Eurasian Scientific Journal Index (ESJI) , Global Impact Factor (0.342) , IFSIJ Measure of Journal Quality , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , Scope Database , 

World Journal of Engineering
Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

News & Updation

  • Article Invited for Publication

    Article are invited for publication in WJERT Coming Issue

  • ICV

    WJERT Rank with Index Copernicus Value 79.45 due to high reputation at International Level

  • New Issue Published

    Its Our pleasure to inform you that, WJERT March 2023 Issue has been Published, Kindly check it on

  • WJERT New Impact Factor

    Its our Pleasure to Inform you that WJERT Impact Factor has been increased from  5.549 to 5.924 due to high quality Publication at International Level


    MARCH 2023 Issue has been successfully launched on 1 March 2023.




*Dr. Shruthi P. C. and Dr. Sivakumar B.


In all-optical network, the Wavelength conversion is one of the key that has been shown to improve blocking performance in a wavelength-routed. In this paper the different techniques Partial Wavelength Conversion, Sparse Wavelength Conversion are analyzed. A performance indication of an All Optical Network is the call blocking probability. The blocking probability is reduced at an affordable cost and at the same time to make sure that other performance measures are within reasonable limits is also achieved. The blocking probability is calculated varying number of channels and load (in Erlangs) on each link in network. It has been observed that the selection of nodes to be equipped with wavelength converters is crucial. The blocking probability should be minimal at those particular nodes chosen to place the Wavelength Converter. The placement of Wavelength Converter will be easy for the decrease in the blocking probability by a large margin. In this paper, Sparse-Partial Wavelength Conversion (SPWC) network architecture is proposed to support wavelength conversion. The performance of an different Optical backbone Network for different parameters such as number of links, number of channels, number of Wavelengths associated between source to destination are analyzed.

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