TRAFFIC GROOMING FAULT TOLERANT TECHNIQUE FOR LOAD-BALANCED ROUTING AND WAVELENGTH ASSIGNMENT IN WDM NETWORKS
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, ELECTRONICS AND COMMUNICATION
Author(s): ACHALA DESHMUKH , SURENDRA BHOSALE , NISHA SARWADE
Abstract: This problem of traffic grooming, routing, and wavelength assignment (GRWA) is considered with the objective of minimizing the number of transponders in the network. We first formulate the GRWA problem as an integer linear programming (ILP) problem. Unfortunately, the resulting ILP problem is usually very hard to solve computationally, in particular for large networks. To overcome this difficulty, a decomposition method is proposed that divides the GRWA problem into two smaller problems: the traffic grooming and routing (GR) problem and the wavelength assignment (WA) problem. In the GR problem, we only consider how to groom and route traffic demands onto light paths and ignore the issue of how to assign specific wavelengths to light paths. Similar to the GRWA problem, we can formulate the GR problem as an ILP problem. The size of the GR ILP problem is much smaller than its corresponding GRWA ILP problem. Once we solve the GR problem, we can then consider the WA problem, in which our go
- Publication Date: 11-Oct-2015
- DOI: 10.15224/978-1-63248-064-4-76
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- Downloads: 0
THE ADOPTION OF MOBILE-LEARNING TO SUPPORT PHYSICALLY CHALLENGED LEARNERS WITH SPECIAL EDUCATIONAL NEEDS: CASE OF ZIMBABWE
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, ELECTRONICS AND COMMUNICATION
Author(s): SIBUSISIWE DUBE
Abstract: Education is a key investment in any nation as it plays a crucial role to sustainable human, economic, social and technological development of that nation. The right to education for all has been a long standing commitment for Zimbabwe and as such the Zimbabwe Education Act stipulates that all children have the right to the provision of education without discrimination in compliance with the Millennium Development Goals (MDG). On the contrast the situation in Zimbabwe shows that many children with physical disabilities are still segregated as regards education for very few neither have access to basic education nor reach the highest levels of education. This study investigated ways through which mobile technologies can be used as learner support services for learners with special educational needs due to physical disabilities. In this paper, disabled learners with special education needs refer to learners with physical and hearing impairments. This paper is timely since there is signif
- Publication Date: 11-Oct-2015
- DOI: 10.15224/978-1-63248-064-4-77
- Views: 0
- Downloads: 0