Given two channel data transfer rates: (1) 4 Gbps @ 200 MHz (2) 200 Mbps @...
Please, answer all the parts of the question. The subject is
Networking.
Consider a 1-Mbps satellite channel. Frame length is 1000 bits and the probability of an unsuccessfiul frame transmission is P. Assume that the errors on different frames are independent. Neglect acknowledgment transmission time and receiver processing time and assume a sliding window protocol, using the selective-repeat ARQ method of error recovery. Assume t-50x10° seconds (a) What is the average number of transmission per frame N Assume P 0.01...
Suppose that multiple users share a 1 Mbps link. Each user has a data rate of 200 b) kbps when "active", and each user is active 10% of the time. When circuit switching is used to allocate resources on the shared link, how (2) (i) many users can be supported? When packet switching is used and the total number of users is 20, what is (ii) the probability that more than 5 users are active simultaneously? (3) What are the...
Suppose that multiple users share a 1 Mbps link. Each user has a data rate of 200 b) kbps when "active", and each user is active 10% of the time. When circuit switching is used to allocate resources on the shared link, how (2) (i) many users can be supported? When packet switching is used and the total number of users is 20, what is (ii) the probability that more than 5 users are active simultaneously? (3) What are the...
Suppose that multiple users share a 1 Mbps link. Each user has a data rate of 200 b) kbps when "active", and each user is active 10% of the time. When circuit switching is used to allocate resources on the shared link, how (2) (i) many users can be supported? When packet switching is used and the total number of users is 20, what is (ii) the probability that more than 5 users are active simultaneously? (3) What are the...
Question 4 (35 points). Two message signals, ?1 (?) =
200??(100??) cos(103πt) volts and ?2 (?) = 900??2 (450??)
cos(103πt) volts, are required to be combined and then transmitted
over a channel around 2 MHz using amplitude double-side modulation.
We assume that the channel is ideal with no delay and no
attenuation. Design a system consisting of mixers, filters, etc. to
transmit and restore perfectly these two signals (i.e. ?1 (?) and
?2 (?)) at the receiving side after the...
7.) The transfer function of a transmission channel is given by H(z) = (2+1.4)(2+ + 2z + 4) (z + 0.8) (2 -0.6) In order to correct for the magnitude distortion introduced by the channel on a signal passing through it, we wish to connect a stable and causal digital filter characterized by a system func- tion G(2) at the receiving end. Determine G(z) such that the H(2) G(%) = 1 for | <. A good starting point would be...
4) Consider the Rdt 2.0 protocol for reliable data transfer. Given the data (actual payload) determine checksums at sender and receiver side. Also, determine what type of response will be sent from receiver to sender. Explain? (20 points) Give values for sender checksum, receiver checksum and response? Response = ? Sender ► Unreliable channel bit error Receiver Data (payload) = (1100 1010, 0101 1100) Received Data (payload) = (1101 1010, 1010 1100) Checksum = ? Checksum = ?
Data is being encoded using a certain line code with r=2 and a data rate of 17Mbps. Assume the channel bandwidth is to be scaled by a factor of (1/4) and a different line code is to be used where the new r=3. What is the new data rate in Mbps? (Assume c=1/2)
Please if you can help question (i) at least, which would be
very helpful.
Assume that a wireless channel can transmit up to 30 Mbps and can be divided between any number of admitted users. There are 7 users in total with the data rate as shown in vector R [rl (R[5, 11, 3, 2, 7, 15, 10]) in Mbps. The profit of a service provider will depend on the number of admitted users as well as the allocated data...
3· -12 points TV channel 2 broadcasts in the frequency range 52 to 62 MHz. What is the corresponding range of wavelengths? (Let us denote the minimum and My Notes AskYour Teacher maximum wavelengths by Amin and Amax, respectively.) max 4. -1 points My Notes Ask Your Teacher Long-distance telephone communication utilizes transmission of electromagnetic signals in the microwave part of the spectrum. How long does it take to transmit a signal cross country, a distance of 3676 km?