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?
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Q: what is the throughput if the system produces the 1000 frames/sec then A pure ALOHA network…
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Q: A group of N station share a 56-kbps pure ALOHA channel. Each station outputs a 1000- bit frame on…
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Q: A group of N stations share a 56-kbps pure ALOHA channel. Each station outputs a 1000-bit frame on…
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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?
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- Consider a full-duplex 256 Kbps satellite link with a 240 millisecond end-to-end delay. The data frames carry a useful payload of size 12,000 bits. Assume that both ACK and data frames have 320 bits of header information, and that ACK frames carry no data. What is the effective data throughput When using Stop and Wait?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.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, BanglaLink has 4 voice channels, each of 60Mbps. They use synchronous TDM to multiplex these channels. If 3 characters at a time are multiplexed (3 characters in each output slot), 1. Draw the first two output frames with arbitrary inputs. 2. What is the size of an output frame in bits? 3. What is the output frame rate? 4. What is the duration of an output frame?Consider a baseband bus where the average distance between any two stations is 375m with a data rate of 10Mbps and a propagation delay of 200m/μs. If two stations begin to transmit at exactly the same time, how long does it take for each to notice the interference, and how many bit are sent by each station by that time.Please check my answer and correct the part which is need to be foxed.And provide justification for the answer. a) The transmission time of a frame can be calculated as follows: Propagation delay (Tp) = distance/speed = 5km / 200000 km/s = 0.0025ms Transmission time (Tt) = frame size/bandwidth = 10000 * 8bits / (1Mbps * 10 ^ 6) = 0.008sec = 8ms Total time for transmission = 2 * Tp + Tt(since the frame has to travel from A to D and then D to A) = 2 * 0.0025ms + 8ms = 0.005ms + 8ms = 8.005ms The transmission time of the frame from A to D is 8.005 ms. b) The efficiency of the CSMA/CD protocol is given by the formula: Tt is the transmission time of a frame C is the number of collisions, Tp is the propagation time of a signal from one end of the segment to the other. Efficiency = Tt / (C * 2 * Tp + Tt + Tp) Assuming that there are no other stations transmitting or attempting to transmit on the segment, the transmission from A to D will succeed without collisions. Therefore,…
- A serial transmission T1 uses 8 information bits, 2 start bits, 1 stop bit and 1 parity bit for each character. A synchronous transmission T2 uses 3 eight-bit sync characters followed by 30 eight bit information characters. If the bit rate is 1200 bits/second in both cases, what are the transfer rates of T1 and T2?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.Consider a 1Mbps transmission channel. The clock at the receiver has a drift of 1 second in one year. How long asequence of bits (or frame) can be sent before the clock drift could cause a problem? Assume that the sender and receiver are synchronized at the beginning of each frame and that they cannot resynchronize during the frame. Also, assume that the receiver samples the received signal at the middle of each bit duration to detect if it is 0 or 1.
- A 20 Kbps satellite link has a propagation delay of 400 ms. The transmitter employs the "go back n ARQ" scheme with n set to 10. Assuming that each frame is 100 bytes long, what is the maximum data rate possible?The following frame should be transmitted over a given network (the frame is shown in hexadecimal): 7E DB DD 7E C0 7D DB DC FF C0. a) If the SLIP framing protocol is used; what are the bytes that are sent on the wire (after framing)? Show your work8. 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?
