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Networking 8 -G s(10pts) Thethroughput of slotted ALOHA is this throughput S=Ge". Find the value of...
from computer networks a system approach book please answer the following .. .. (Slotted ALOHA): Suppose there are N nodes in a slotted ALOHA network. Every node is trying to transmit a packet at every time slot with probability p, independently of each other. It takes one time slot to transmit a packet. (a) Express the offered load (the average number of packets per time slot that are arriving to the network) in terms of N and p. (b) Showthethroughput(theaveragenumberofsuccessfullytransmittedpacketspertimeslot)isequaltoNp(1−p)N−1....
Problem 6 a) State two approaches of avoiding collision in a carrier sense multiple access with collision avoidance based network. Give two reasons why collisions cannot be eliminated in a network whose nodes perform carrier sensing prior to transmitting a packet b) For the slotted ALOHA protocol used on the random access channel in cellular systems, show that the theoretical maximum throughput, Smax = '36%. Hint: For slotted ALOHA, the throughput S is given by: S=Ge-, where G is the...
8- Consider an ALOHA system with 10 users, where each user transmits with probability pt = 25%. a) What is the success probability for user #1 [5 pts] b) What is the success probability for any user (u1,u2,....u10) no matter which one: (10 pts] c) In order to increase the success probability would you recommend increasing or decreasing the transmission probability Pt [5 pts] 9-Answer question 8 for a slotted ALOHA system. [20 pts] Slotted Aloha efficiency Let us assume...
Q.3(a) Transfer function model of a plant is, G(s) The controller is Ge(s)-K, where K is a constant. Find the value of K such that steady-state error for unit ramp input is 0.1. Find the gain margin and the phase mar gin (6 marks) (b) What are the effects on gain margin, phase margin and steady-state error, if the gain K is increased? (3 marks (c) Can the closed loop be unstable if the controller of Q.3(a) is implemented digi...
Problem 3. (15 points) Consider the feedback system in Figure 3, where G(s)1 (s -1)3 Ge(s) G(s) Figure 3: Problem 3 1. Let the compensator be given by a pure gain, ie, Ge(s)-K, K 0 (a) Draw the root locus of the compensated system (b) Is it possible to stabilize the systems by selecting K appropriately? If so, find the range for K such that the closed-loop system is BIBO stable. If not, explain. 2. This time, let the compensator...
1. (10pts) Find the solution to the initial value problem for the following differential equations 1/' + 2y - 8y = (2x + 2?), y(0) = -1, 7(0) = 0.
2. Provide the equilibrium constant (value) for the combustion reaction below (10pts) avv 2 CH30H (g)+3 02 (g) 2 Co2 (g)+ 4 H20 (g) d godahow Keq = bolgodahow Reference Reactions avISOARTME3 от яаяо ит CO2 (g) co (g)+02 (g) Kea 0.901 nOW HUOY Co (g)+2 H20 (g) Keg= 1.19 CH30H (g)+02 (g) CH3OHLO g d Pd) co d wolad ballvo Keg l.23(8 1 ( Kea -(1.14)-14e co t aH2o CCHOHO coaoKeq= (1.19) d 2 1.7H ত) ICea
R(s) .Y(s) G,(s) G. (s) C++20)(0+12 For Questions9 and 10: In Figure 1, Gp(s) and Ge(s)K. Table 1: Table of specific points on Bode Plot for the system given above w(rad/s) - 0.5 5.68 10 20 44.4 -61.6 -66.4 -82.7 -72 -100 mag phase -9.51 -90 -131 -180 -224 9. What is the maximum value of K in the system described above will ensure system stability? (Note that the answers are not in dB) (a) 1.36 x 104 (b 8.13...
7. Show parity using odd I's with double parity, for following data 11001101110. (10 pt.) UG 8. Show the hamming code for any 6-bit data. (10pt.) 9. What are the polynomial equivalence of following bits. (10 pt.) 1100101 0011101 1110001 010100 Assume a sender has the following data frames. Suppose the sender using burst error detection/correction. Show the actual row and column that is send and received. (10pt.) 1- 0110 2- 1101 3- 0011 4- 0101 11. In terms of...
E4.5 A unity feedback system has the loop transfer function 100K L(s) Ge(s)G(s) 1 s(s b) Determine the relationship between the steady-state error to a ramp input and the gain K and system pa- rameter b. For what values of K and b can we guaran- tee that the magnitude of the steady-state error to a ramp input is less than 0.1? E4.5 A unity feedback system has the loop transfer function 100K L(s) Ge(s)G(s) 1 s(s b) Determine the...