Thursday, April 25, 2024

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Welcome to NITOS Testbed Scheduler

NITLab introduces you to NITOS Scheduler, a tool which is responsible for managing the testbed resources. In this section, you can find a brief description of NITOS Scheduler, as well as instructions on how to use it.

Since NITOS objective is to serve as many users as possible without any complicated procedures, our scheduler is developed in that spirit. NITOS scheduler is mainly consisted of two components, a web-based user interface and a server component comprising of some scripts and a database. The user interface is responsible for guiding the user through the reservation process, making sure that he does not make a reservation conflicting with reservations made by other users. The server component manages the resources, namely wireless nodes and spectrum channels, by associating at the beginning of each time slot (30 min) each resource to the correspoding slice, according to the information stored in the database.

The Scheduler mirrors the testbed's slicing capabilities. Until now, we have enabled spectrum slicing support on NITOS. By that, we mean that various users may use the testbed at the same time, without interfering with each other, since each one of them will be using different spectrum. This spectrum is declared by each user during the reservation process. The scheduler does not allow for a user to choose any channel that has been chosen by another user.

NITOS is a testbed which is not sited in a single room; its nodes are laying in a six-floor building, while we are studying its extension to other buildings. Therefore, NITOS topology would not be realistically represented on a two dimension shape; this is why the scheduler is letting the user to see the exact position of each node in the building.

Although NITOS is supporting spectrum slicing, the testbed reservation procedure has been simplified to the user that visits our site for the first time. Nevertheless, we are giving a detailed tutorial on how reservation is done. We recommend that you first read the instructions which will guide you through the reservation process.

Please note that in order to use the Scheduler you need to be a registered user of the NITOS Testbed. So, if you do not have an account yet, you can create a new one right now by clicking Create an account on the top right corner of your page.

If you are a registered user, please log in and use the NITOS Scheduler in order to book your nodes, right now!

Enjoy!

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