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--- activities [2017/10/26 10:24]
mustafaelnainay
+++ activities [2017/10/26 10:28] (current)
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 interfaces, to use the same physical machine.
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+==== Topology Control using Gains ====
+Some wireless experiments depend on the existence of a specified topology between the nodes. For
+example, some cognitive radio scenarios require certain connectivity between the nodes. Changing the
+transmitter power and the amplification at the receiver by changing the transmit and receive gains of
+the nodes can be used to realize a given topology. Selecting suitable nodes and finding suitable values
+for the gains using trial and error is a time consuming process. In CRC, we developed a system, that
+given a desired topology, will find values of the transmit and receive gains for the nodes to achieve the
+desired topology.
+==== Storage Efficient Disk Imaging System ====
+The users’ images are always derived from the base image provided by the administrators of CRC
+which is stored on the server. Users may perform some changes on the image and then save it back
+to the storage server using [[https://www.cs.utah.edu/flux/papers/frisbee-usenix03-base.html|Frisbee]]. The drawback of Frisbee is that it stores the entire disk image
+which leads to having duplicate data. To avoid this, we use a proven data duplication software which
+is [[https://www.usenix.org/legacy/events/fast02/quinlan/quinlan_html/|Venti archival storage system]]. Venti is a block level storage system, it identifies duplicate blocks
+and avoids data duplication. Our work was on the integration of Venti and Frisbee to get the benefits of
+both; Venti avoids duplication, while Frisbee enables fast and scalable image transfer.
-===== Studying the Software Defined Networking and possibilities to integrate into CRC testbed =====
-==== Short Description ====
-A document describing how to include SDN in the CRC testbed and possible research directions.
-==== Team ====
-==== Resources ====
-[[https://drive.google.com/open?id=0B0-0d_WzArTUQnpCcDRaQUNMb2M&authuser=0]]
 ----
-===== Survey portals of other testbeds and plan CRC portal =====
-==== Short Description ====
-==== Team ====
-==== Resources ====
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-===== Study the interference model of the SmartCI research building =====
-==== Short Description ====
-==== Team ====
-==== Resources ====
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-===== Study the suitable testbed nodes positions inside the research building =====
-==== Short Description ====
-==== Team ====
-==== Resources ====
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-===== How to use flack in GENI experimentation  =====
-==== Short Description ====
-An introductory presentation to the GENI testbed, and how to use the flack software in setting an experiment
-==== Team ====
-==== Resources ====
-About GENI testbed
-https://drive.google.com/open?id=0B5q_HJKGbI38aDZCaFJNOC1MZnM&authuser=1
-Using Flack
-https://drive.google.com/open?id=0B5q_HJKGbI38TGtiWmM5UWN1Z0k&authuser=1

CRC: Communication and Networking Testbed

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