9 9 votes 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 $4.25$ $3.5$ $450$ $350$ Computer Networks isro2015 computer-networks slotted-aloha + – ajit 9.6k views answer comment Share Follow Print See 1 comment 1 1 comment reply Siddharth_Perkar commented Jul 24 reply Follow flag Slot time = 50 ms = 0.05 s G = λ x T = requests per second x slot duration (seconds) = 70 × 0.05 = 3.5 1 1 replyShare Please log in or register to add a comment.
Best answer 34 34 votes Answer: (b)Explanation: In slotted ALOHA we divide the time into slots and force the station to send only at the beginning of the time slot. Here slot time is 50 ms, so number of slots in 1 second = 1/(50 X 10^-3) => 20 slots/sec Requests per second = 70 Time slots per second = 20 Channel load = No. of Requests / No. of Slots = 70 / 20 = 3.5 Reference: http://www.cs.wichita.edu/~chang/lecture/cs742/homework/hwk3-sol.txt Mangilal Saraswat answered Jun 19, 2016 • selected Jul 1, 2016 by Desert_Warrior Mangilal Saraswat comment Share Follow See all 2 Comments 2 2 Comments reply pC commented Jul 1, 2016 reply Follow flag is ALOHA in 2017 GATE syllabus ? 1 1 replyShare shweta1920 commented Apr 16, 2017 reply Follow flag yes it is in GATE syllabus 0 0 replyShare Please log in or register to add a comment.
5 5 votes Answer is (B) part. 70 request per second so number of request in one time slot(50 ms) will be (70*50)/1000 = 3.5 (which is channel load means request per time slot) Chhotu answered Apr 20, 2017 Chhotu comment Share Follow 0 reply Please log in or register to add a comment.
3 3 votes (b) option (70*50)/1000 =3.5 focus _GATE answered Oct 12, 2015 focus _GATE comment Share Follow 0 reply Please log in or register to add a comment.
2 2 votes 70 request/sec time is slotted in units of 50 msec channel load = 50 msec * 70 request / sec = 3.5 b option akankshadewangan24 answered Apr 29, 2017 akankshadewangan24 comment Share Follow 0 reply Please log in or register to add a comment.
1 1 vote in 1 sec it is generating 70 request means to generate 1 request it will take 14.3 msec so in 1 slot time(50 msec) it will have (1/14.3)*50 =3.5 answers should be (B) cse23 answered Jun 17, 2016 cse23 comment Share Follow 0 reply Please log in or register to add a comment.
