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hw7 - ECE 547 Homework 7 Note This homework will not be...

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ECE 547: Homework 7 Note: This homework will not be collected. 1. Solve problems 8-4, 8-5, 8-9, 8-10 and 8-14 in Schwartzs book. 2. Terminal A is transmitting messages over a common channel shared with a second source. The data rate of the common channel is C . The second source generates messages according to a Poisson process with rate λ 2 . Each message is of fixed length m 2 . Once a message is generated at the second source, it is immediately transmitted on the channel, regardless whether any other messages are being transmitted. The message from the second source is NOT retransmitted even if a collision occurs. Messages of length m 1 > m 2 arrive at Terminal A according to a Poisson process with rate λ 1 . Assume that Terminal A has infinite buffer space, and it serves the messages in a first- come-first-serve manner. Terminal A uses the following pure Aloha scheme. Once a message is ready for transmission (i.e., when it is the first message in the queue), the message is first immediately transmitted to the common channel. If there is no collision with messages
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