Simulation done in opnet academic edition Scenario 1: In this scenario One coordinator (node_0), 2 end devices (node_1 and node_2. In Scenario 1 node_1 act as transmitter and node_2 act as receiver. Node_1 sends data through node 0. From the Figure (1) it is clear that within 800 meter range nodes are connected to coordinator. Within this range packet drop is 0 and all the packets transmitted successfully to node 2. Figure(1) Star Topology Scenario2: In scenario 2 same nodes are used that are used in scenario 1 but end nodes are placed at 900 meter apart from the coordintor. After simulation it is observed that end nodes are not connected to coordinator. All Packets are dropped shown in Figure (2). Figure (2) Star Topology Result: From …show more content…
For this extra two end devices are used. After simulation it is observed that only two end devices are connected with router. This is the limitation of opnet. Scenario 7: In Scenario 7 and 8 ,7 routers and 3 end devices are used. After simulation it is observed that only 5 routers are connected with a router. To see the difference this paper analyses the graphs which are obtained after simulation. Different scenarios are compared using MAC delay, throughput and packet drop parameters. . Result and Discussion MAC Throughput Figure (6). Throughput comparison for star, tree and mesh topology with router Throughput is the total no packet received by the receiver within a specified time (seconds).If the delay in the network is low throughput is more. From Figure(6). It is observed that throughput for tree topology is more and for star topology is less. End-to End Delay Figure (7). End-to-End Delay comparison for star, tree and mesh topology. End-to-end delay is the time taken by the packet to be transmitted from source to destination. From Figure
On this internet, the website said that there are two Calories per one mini marshmallow. The website also said that in one cup of marshmallows there is 159 Calories. This is the same as the back of the marshmallow label we had in class. On the label it said there were 83.2 Calories per gram.
As the Fig 1 showing, the node which generates the packet is the source node. There are many sensor nodes in a 3-D interest area. The packet is delivered among these sensor nodes and finally try to reach one sink node. Sink nodes are deployed on the water surface. In the figure, it is a multiple-sink topology. Multiple sinks equipped both radio-frequency and acoustic modems are fixed on the water surface.The packet is assumed delivered successfully if it reaches any one of the sink nodes because sink nodes use radio-frequency channel to communicate with each other which is several orders of magnitudes faster than acoustic channel.
Cecila, all great questions! Typically advisors may desire to add more notes when initially scheduling a call back to close the business. The protocol for SOM has the advisor add those notes to their Outlook as an appointment/task. Unfortunately, if the call was redirected to another advisor, the other advisor will not have access to the appointment created in the previous advisor’s Outlook.
When using routers, you need many routers in order to route the information to the correct location, as one router will not be able to manage this task. Explain how the routing schemes handle this problem.
Japan is an island nation off the coast of East Asia. It is made up of four large islands and about 3,900 smaller ones. On a map, they form a thin crescent moon. All together, they form an area about the size of Montana. To the west, the sea of Japan separates it from its nearest neighbors, Korea and China. To the east lies the Pacific ocean. Japan has a moderate climate. Summers are nice. Winters are mild, with heavy snowfall limited to the north. Japan makes crops due to rain in the summer.
Answer: - As we saw in the lab simulation runs, Segment Sequence Number remains unchanged as indicated by the horizontal line because of the congestion caused by packet drops, which in turn causes timeouts which leads to drop in the graph, that causes the congestion window to decreases in size when timeouts are detected, timeouts are due to 0.5% packet drop in IP cloud.
When there is loss of packet, the sender doesn’t wait for the time out and resends the packets immediately using the mechanism of fast recovery and fast retransmit.
There are so many reasons that lead me to chose this particular topic.I have been following the MMA for couple years , and also I am comfortable with sports platforms.
1.“If, for example, students were not ultimately rewarded for spending their early adulthoods pursuing undergraduate, graduate, and professional degrees, or if the hardest-working and most productive workers were paid the same as the median worker, then citizens would have little incentive to develop expertise, to exert effort, or to excel in their work.”
The first end system requires to transmit the packet to the second link = L/R2
The Unistep IRP Elexol EtherIO 24 Module is a network board that is integrated with features that allow multiple devices over the same network to communicate. This microcontroller was designed to be implemented as an addition to a larger network system; the multiple features and capabilities allow for various industrial and home applications. Ethernet is very common and used in most networks, which makes the IRP a great candidate for networking problems both at home and in the work field.
...it for data to arrive at its destination, and is normally expressed in milliseconds (ms). Although Latency and Bandwidth define the Speed and Capacity of a network but having a 25 Mbps (Megabits per second) connection does not really allow a single bit of data to travel that distance any faster. However, a large bandwidth connection only allows you to send or receive more data in parallel but not faster as the data still needs to travel the distance and experience the normal delay [8].
A network is merely a series of interrelated components, sharing information, linked by one common lifeline, spanning across a large area. When most people think of networks in the computer sense, cyberspace and the internet are usually types of networks that come to mind. However, these are just small pieces that complete the network puzzle. Many other types of networks include Local Area Networks (LANs), Wide Area Networks (WANs), and also wireless networks as well. This paper will provide some insight into the development, objectives, and impact of various network systems.
b) Information cannot be shared at a wider range to different receivers at distanced locations
Since nodes themselves are not relied upon for communication, the failure of a single node is not problematic for the rest of the network. For a major issue to occur, there must be a problem with the bus itself. Despite its simplicity and reliability, the bus network does have several limitations. The cable length of the bus is limited due to data loss. Also, a bus network may have performance issues if the nodes are located at scattered points and do not lie near a common line....