A pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps. What is the throughput if the system (all stations together) produces a. 1000 frames per second b. 500 frames per second
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- A distant planet is about 9 x 1010 metres from the surface of the Earth. What is the channel utilisation of a point-to-point connection that operates at 64 megabits per second and uses a stop-and-wait protocol for frame transmission? Let's say that the speed of light is 3 108 metres per second, and that the frame size is 32 kilobytes.A group of N station share a 56-kbps pure ALOHA channel. Each station outputs a 1000 bit frame on an average of once every 100 sec, even if the previous one has not yet been sent (eg., the stations are buffered). What is the maximum value of N?A channel has a bit rate of 4 kbps and a propagation delay of 20 msec For what range of frame sizes does stop-and-wait given an efficiency of at least 50 percent?
- A line has a signal-to-noise ratio of 1000 and a bandwidth of 4000 kHz. What is the maximum data rate supported by this line? If the bandwidth of the channel is 5 kbps, how long does it take to send a frame of 100,000 bits out of this device? What is the maximum data rate of a channel with a bandwidth of 200 kHz if we use four levels of digital signaling?For the following stream of digital signal which is being transmitted by bit rate 5 Kbps: 101100000000110 a) Draw the waveform for all line codes you studied. b) Determine if the line code is self synchronized or not. c) Determine if the code can be used with ac coupling or not d) Determine the Bandwidth of the line code e) Which code is used in magnetic recording f) Which code is used in LAN8. A pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps.What is the throughput if the system (all stations together) produces?a. 1000 frames per second?b. 500 frames per second?c. 250 frames per second?
- what is the throughput if the system produces the 1000 frames/sec then A pure ALOHA network transmits 200-bit frames on a shared channel of 200kbps.800 b frames are sent over a 500 kbps communication channel. The communication channel usesGBN protocol with 3 bit sequence numbers. The propagation delay is 20 ms. Confirmationsare of size 500 b. Headers and control information are negligible in size.What is the maximum efficiency of this channel?Consider TDM-based circuit switching with 8000 frames per second and 32 time slots per frame. During each time slot 8 bits are sent. What is the shortest time possible (in seconds) to transmit a 1 Mbyte file over the given link?
- Suppose you are designing a sliding window protocol for a 2Mbps point to point link to the moon, which has a one way latency of 10 sec. Assume that, each frame carries 1KB of data, what is the minimum number of bits you need for the sequence number?5- A synchronous TDM with four 2 Mbps data stream inputs and one data stream output. The multiplexing unit of data is 1 bit. The input bit duration is the output bit duration is the output frame rate is ------- Frame/sec. otansmi Mbps; and us; the output bit rate is natos imeni adi stonl -.oi mibanaine 1. 1. ... 2 Mbps Be eill Frames ilsbit ... 0. 2 Mbps MUX 2 Mbps 1. 1. ... 2 Mbps .. 7- A de pulse train has a peak voltage value of 5 V, a frequency of 4 MHz, and a duty cycle of 30 percent. The minimum bandwidth necessary to pass this signal without excessive distortion is MHz. (Note: to =T*Duty Cycle; T= 1/F) 8- Ten channels, each with a 200 kHz bandwidth, are to be multiplexed together using FDM. The minimum bandwidth of the link is need for a guard band of 10 k Hz between the channels; while the minimum bandwidth of the link is 20 kHz between the channels. KHz when there is a KHz when there is a need for a guard band of 9. If a channel can transmit a range of frequencies from 10 MHz…A planet located far from Earth is around 9 x 1010 meters away. If a stop-and-wait protocol is employed for frame transmission on a 64 Mbps point-to-point link, what is the channel utilization? Assume that the speed of light is 3 108 m/s and that the frame size is 32 KB.