Explain why worst-case fair wfq can have absolute bound

Assignment Help Electrical Engineering
Reference no: EM13739917

Question 1: Explain why worst-case fair WFQ can have the absolute fairness bound.

Question 2: Consider two N x N internally non-blocking packet switches where N is very large. One is operated as a waiting system with very large input buffers and the other is operated as a loss system without input buffers. For the former, packets are dropped when the input buffers overflow, and for the latter, packets that lost contention are dropped. When the input load is 0.3, which system has a lower packet loss probability? How about when the input load is 1? Please justify your answer.

Question 3: Consider WFQ (weighted fair queuing). There are four equally weighted connections A, B, C and D to a WFQ scheduler. Initially, all these four connections are inactive. Now suppose that at time 0, a packet of size 3 units arrives at connection A, a packet of size 4 units arrives at connection B and a packet of size 2 units arrives at connection D; at time 2, a packet of size 2 units arrives at connection C; and at time 10, one more packet of size 3 units arrives at connection D. The outgoing link serving rate is one unit per second. Please specify the finish numbers of all these five packets. What is the round number when the system becomes idle? When is the system idle? Justify your answer.

Question 4:

Please prove that the maximum throughput of input queued switch is 0.586 when switch size N approaches infinity. Assume the incoming traffic is uniformly distributed.

Question 5:

Consider max-min weighted fair allocation. There are four connections with bandwidth demands of (6, 3, 10, 5) and weights (2, 4, 3, 1). The total network capacity is 20. What are the final fair shares for these four connections.

Question 6:

Consider an 8 x 8 Batcher-Banyan network. Label the input and output ports from 0 to 7, respectively (the lowest port is port 7).             Four packets arriving to the input side of the Banyan network: packet 1 at input port 1, destined to output port 5; packet 2 at input port 3, destined to output port 4; packet 3 at input port 5, destined to output port 7; packet 4 at input port 6, destined for output port 7. Which packets will be delivered during the current round? Justify your answer.

Verified Expert

Reference no: EM13739917

Find maxima and minima

Plot the amplitude y versus distance x along the line, from L at the right to 0 at the left, at time t = 0 - Where do the minima and maxima of the upper envelope1occur - Plot

Design an active first order low pass filter which passes f

Use a capacitor, a resistor and an operational amplifier circuit to design an active first order low pass filter which passes frequencies that human can hear (below 15kHz). Sh

Create a literature review concerning mentoring leadership

Contain an APA formatted cover page with the title of your topic.Contain an APA formatted abstract with your research topic summarized.Contain 8-10 pages of content synthesizi

There needs to be certain measures put in place as a techno

There needs to be certain measures put in place as a technology or application is being developed in order to protect the intellectual property to maximize the lifecycle of a

What is the effect on the amount of charge

How much charge is stored in a 5uF capacitor connected across a 70V supply and For a constant supply voltage and an increasing value of capacitance, what is the effect on the

Spatial scalability by using wavelet transform

a. JPEG2000 achieves spatial scalability by using wavelet transform. Suppose you want to enable 3 spatial layers,show the wavelet decomposition structure (i.e. how is the imag

An active network is described by the characteristic equatio

It is required that the network be stable and that no component of its response decay more rapidly than K1e^-3t. Show that these conditions are satisfied if K2>0, |K1| 3K1. Cr

Derive the state diagram

Design a Moore machine to detect the sequence 00010a. Derive the state diagram.b. Derive the state table and flip-flop excitation equations.c. Draw the sequential circuit.

Reviews

Write a Review

 
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd