Q3) The goal of this question is to explore the impact of bit error rate (BER) on the packet error for multihop wireless networks. Assume a packet of size 512 bytes is transmitted across intermediate nodes until reaching its destination. Assume a communication channel has bit error rate (BER) = 10^-5. What is the probability of packet not in error over one link?
Q3) The goal of this question is to explore the impact of bit error rate (BER)...
Consider packet size 512 bytes in a multihop wireless networks, transmitted across intermediate nodes until reaching its destination. The bit error rate (BER) = 10^-5? The probability for a bad packet in 1 link is 0.04096. What is the probability of packet receiving incorrectly over 50 links AND network uses cooperative diversity over 5 different paths?
A data packet is transmitted over a lossy wireless channel with
packet error rate 0.3. Most communication systems adopt
the Automatic Repeat reQuest (ARQ) protocol. That is, if a packet
is successfully (with probability 0.7) or unsuccessfully
(with probability 0.3) received, the receiver respectively
sends a one-bit ‘ACK’ or ‘NAK’ message (over a separate feedback
channel) to the transmitter. After receiving an ‘ACK’, the
transmitter will move on to the next packet transmission;
otherwise, the transmitter will re-transmit the same...
plwase answer all questions
Question 1 2.5 pts The Internet does not perform any error detection on datagrams and leaves it to the end users. True False U Question 2 2.5 pts If a communication line has an attenuation of -10dB, a transmitted with a power of SW becomes 0.5W when it reaches the end of the line True False D Question 3 2.5 pts Flow control refers to pacing between the source and destination True False D Question 4...
help with computer network questions 1. What is the difference between circuit switching and packet switching? 2. What are the different layers in today’s Internet? Why do we create layers? 3. Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of 2.4 * 10^8 meters/sec. a. What is the propagation delay of...
Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic redundancy check (CRC) A. Yes, No, No B. No, Yes, Yes c. No, Yes, No D. No, No, Yes E. Ho, hum, ha Q2 CRC vs Internet checksums Which of these is not true? A. CRC's are commonly used at the link layer B. CRC's can detect any bit error of up to r bits with an r-bit EDC. c. CRC's are more resilient to bursty...
check my answers for Networking I came up with these answers, can check my answers Question 1: General What data rate is needed to transmit an uncompressed 4" x 6" photograph every second with a resolution of 1200 dots per inch and 24 bits per dot (pixel)? 691,200 kb/s 28.8 kb/s 8.29 Mb/s 829 Mb/s Question 2: Layering "Layering" is commonly used in computer networks because (check all that apply): -It forces all network software to be written in ‘C’....
First, read the article on "The Delphi Method for Graduate Research." ------ Article is posted below Include each of the following in your answer (if applicable – explain in a paragraph) Research problem: what do you want to solve using Delphi? Sample: who will participate and why? (answer in 5 -10 sentences) Round one questionnaire: include 5 hypothetical questions you would like to ask Discuss: what are possible outcomes of the findings from your study? Hint: this is the conclusion....