Dark Mode

Recent questions tagged slotted-aloha

2 votes

0 answers

31

Parshu gate asked in Computer Networks Nov 5, 2017

421 views

0 votes

1 answer

32

aloha
6000 stations are competing for use of single slotted aloha channel. The average station makes 30 requests/hr ,where each request is for 500 us(micro sec) duration. calculate normalized total traffic on channel

Pratap asked in Computer Networks Jan 27, 2017

by Pratap

800 views

0 votes

2 answers

33

slotted aloha
measurements of a slotted aloha channel shows that 20% of slots are idle. 1.what is normalized total traffic in channel? 2.what is normalized throughput?

Pratap asked in Computer Networks Jan 27, 2017

by Pratap

1.2k views

2 votes

0 answers

34

Aloha
I have a lot of problems to solve numericals of Aloha. In Test series they are asking such questions which i'm unable to understand. Is there any good material for it? Please provide it or explain some concepts.

target2017 asked in Computer Networks Jan 5, 2017

1.3k views

1 vote

0 answers

35

MadeEasy Test Series: Computer Networks - Access Control Methods

Rajesh Raj asked in Computer Networks Dec 15, 2016

318 views

0 votes

0 answers

36

slotted aloha
A group of N stations share 100 Kbps slotted ALOHA channel. Each station output, a 500 bits frame on an average of 5000 ms; even if previous one has not been sent. What is the required value of N?

Lone Wolf asked in Computer Networks Oct 29, 2016

1.5k views

4 votes

1 answer

37

RANDOM TEST SERIES
Suppose there are 4 nodes N1, N2, N3 and N4 are using a slotted ALOHA channel to send their own huge data. When competing all the nodes to transfer their data only one node will get succeeded with a probability P. The time is divided into slots S1, S2, S3 .and so on. What is probability of N1 succeeded in ... P)3) P(1-P)3(1-P(1-P)3) 4*P(1-P)3(1-P(1-P)3) 4*P(1-P)3(1-P3(1-P)3)

shyamalkishorejha asked in Computer Networks Oct 25, 2016

by shyamalkishorejha

668 views

3 votes

1 answer

38

frame transmission probability
In a aloha implemented shared channel probability of transmission of a station in a time span of T is p. Given, probability such that NO station transmit in a time duration of $2T$ is $50\%$ , where T = one frame transmission time. What is the value of p is if total no of station = $100$

dd asked in Computer Networks Jul 11, 2016

by dd

1.1k views

3 votes

3 answers

39

Calculating throughput for slotted ALOHA
Consider a system generating 20 bit frames and connected through a shared 20kbps channel. Find throughput in percent if slotted ALOHA is used and frame rate is 1000 fps.

Purple asked in Computer Networks Jan 26, 2016

by Purple

27.2k views

5 votes

1 answer

40

Aloha
You have two computers, $A$ and $B$, sharing a wireless network in your room. The network runs the slotted Aloha protocol with equal-sized packets. You want $B$ to get twice the throughout over the wireless network as $A$ whenever both nodes are backlogged. You configure $A$ to send packets with ... of $B$ to, in order to achieve your throughout goal? $p/(1+p)$ $p/(1+2p)$ $2p/(1+p)$ $1/2$

tiger asked in Computer Networks Jan 8, 2016

by tiger

2.0k views

2 votes

0 answers

41

Aloha
Consider a slotted aloha channel with bandwidth 5Mbps. if frame size is equal to 10 user slots then what is effective data rate of a user if every 2nd slot is occupied by him?(Assume data if required)

saurav04 asked in Computer Networks Oct 18, 2015

676 views

9 votes

5 answers

42

ISRO2015-55
A certain population of ALOHA users manages to generate $70$ request/sec. If the time is slotted in units of $50$ msec, then channel load would be $4.25$ $3.5$ $450$ $350$

ajit asked in Computer Networks Oct 12, 2015

by ajit

6.9k views

Page:

Recent questions tagged slotted-aloha