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Changes between Version 19 and Version 20 of Internal/StudentPages/XiruoLiu


Ignore:
Timestamp:
Jun 4, 2012, 2:56:42 PM (12 years ago)
Author:
sissiok
Comment:

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  • Internal/StudentPages/XiruoLiu

    v19 v20  
    51515.examine each update/lookup in the order of timestamp, calculate average update/lookup latency.[[BR]]
    52526. application example: multimedia on demand system, peer-to-peer (texting/call) communication[[BR]]
     53     (1) multimedia on demand system:[[BR]]
     54         Node A sends a query to local GNRS server for service provider B's GUID; GNRS server returns B's network address; A sends service request to B; B sends media file of size x MB (chunked into k packets)to A, A acknowledge each packet received successfully; A moves to another grid (based on transition probability matrix) during the media file transmission, B fails to receive ACK during to A's change of network address; B queries its local GNRS server for A's network address, if B finds A's network address updated, it sends packets to the new address.[[BR]]
     55Data to be measured: update / query latency due to A's moving during the media file transmission[[BR]]
     56[[BR]]
     57     (2) peer-to-peer commnuication[[BR]]
     58      Node A and B are mobile nodes. There is a packet flow between A and B. Measure the update / query delay due to their movements.[[BR]]
    5359
    5460