Every ns2 based project starts with the normal wireless or wired procedure [12]. Here a wired many to one communication is designed. A simulation environment of 10-11 nodes which are wired is created. The system starts with designing a network topology of the described kind as depicted in Fig. 2. Blue node represents the intermediate switch and yellow node represents the client to whom packets are intended to transfer. The nodes are created and the duplex connections are made between the nodes. The corresponding agents are attached and the flows id’s are also given.
The complete framework of LTTP to support many-to-one communication in data centers includes two parts, i.e., the data channel from each server to the client, and the control channel…show more content… 3 illustrates the workflow of LTTP. First, the client establishes control channels (TCP connections) to all the servers. Second, the client sends requests to all the servers simultaneously through the control channel, asking the servers to start sending the data. Third, once receiving the request, the servers use control channel to send the decoding parameters back to the client. Meanwhile, each server starts to employ LT code [11] to produce and send encoding packets continually. TFRC is used by both servers and the client to control the sending rate. Finally, as soon as the original data is successfully restored, the client sends a terminating signal through control channel back to the corresponding server, which informs the server to stop…show more content… The technique is also sometimes applied to data storage devices, such as a disk drive. In this situation each block on the disk would have check bits, and the hardware might automatically initiate a reread of the block when an error is detected, or it might report the error to software. The material that follows speaks in terms of a “sender” and a “receiver” of a “message,” but it should be understood that it applies to storage writing and reading as
