Changes between Version 3 and Version 4 of Internal/WinlabMadwifi/PipelineMACPaper


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Timestamp:
Nov 15, 2005, 5:38:46 PM (19 years ago)
Author:
zhibinwu
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  • Internal/WinlabMadwifi/PipelineMACPaper

    v3 v4  
    77== Motivation ==
    88 * Per packet Micro-scheduling need firmware/hardware(MAC) upgrade
    9  * Macro-scheduling could be done in multiple packet basis peridodically, e.g 10ms.
     9 * Macro-scheduling could be done in multiple packet basis periodically, e.g 10ms.
    1010 * Cooperative scheduling extensions can be supported using a new layer on top of the existing MAC layer.
    1111
    1212
    1313== Features of Scheme ==
    14  * each node conducts "global scheduling" based on "load infomation" of all other nodes.
     14 * each node conducts "global scheduling" based on "load information" of all other nodes.
    1515    * the global scheduling determines a TDMA-like slot/bandwidth allocation
    16  * 3 stages, 2 1/2 pipelineing:
     16 * 3 stages, 2 1/2 pipelining:
    1717   * estimation -- load exchange -- scheduling
    1818   * equivalent to predict -- signaling -- access
     
    2323   * wake_queue
    2424
     25== Experiment Evaluation ==
     26
     27using 2 nodes and 1 AP, configure 1 node to have twice bandwidth as another node (interferer/competitor)
     28
    2529== Weakness ==
    2630 * a solution for IEEE 802.11 Wireless LAN, not a solution for multi-hop
    2731 * no solution for signalling loss, wrong scheduling automatically fades out in next cycle.
    2832 * rely on AP's beacon to sync all nodes.
     33 * very simple experiment scenario and incomplete results.
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