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Unformatted text preview: are identically and exponentially distributed with mean L . The internet access point A is assumed to have in²nite bu±ers. However, packets From two streams are treated di±erently. A packet From stream 1 is always accepted by A . A packet From stream 2 is accepted only iF the number oF packets in A (including the packet under service) is less than or equal to a number K > 0; otherwise, it is assumed lost. (a) Derive P n , the steady-state probability that there are n packets in the access point A . (b) ³ind the rate with which packets From stream 2 are lost. (c) ³ind the expected delay From the time a packet From stream 1 arrives at the access point A to the time when it completes service. (d) ³ind the expected number oF packets From stream 1 that are in the access point A . 3. Solve problems 2-9, 2-11, 2-13, and 2-20 in the Schwartz book....
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This note was uploaded on 01/27/2010 for the course ECE 547 taught by Professor Xiaojunlin during the Fall '09 term at Purdue.
- Fall '09