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Unformatted text preview: appearing in the data stream. During idle times, the sender will transmit continuously the same flag. (a) Under the worst case situation, how many more bytes will be added for a packet of 200 bytes? (b) The opening and ending flags are the same. What method can the receiver use to determine which one is the opening and which one is the ending flag? Explain. (4) Users of each cell in a cellular network uses a ALOHA channel for sending in requests for acquiring a signaling channel. Assume that each user only needs to send in one packet per call through this ALOHA channel and the packet length is 200 bits. The channel capacity is 4.8 Kbps. Assume on average a user will make one call in 10 minutes. Under the ALOHA is operating under the optimal condition. How many users can we support in a cell with this ALOHA channel?...
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This note was uploaded on 10/16/2011 for the course ELEC 308,315,10 taught by Professor Prof.shenghuisong during the Spring '11 term at CUHK.
- Spring '11