Changes between Version 15 and Version 16 of 802.11/wlan_exp/app_notes/dcf_with_hidden_nodes


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Timestamp:
Jun 23, 2015, 10:05:38 PM (9 years ago)
Author:
murphpo
Comment:

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  • 802.11/wlan_exp/app_notes/dcf_with_hidden_nodes

    v15 v16  
    55The [https://en.wikipedia.org/wiki/Hidden_node_problem Hidden Node Problem] is a classic topology studied in wireless networking where the arrangement of nodes prevents traditional carrier sensing from protecting against collisions. In a simple hidden node topology a central node has a high SNR link with two other nodes, but these other nodes are too far apart to detect the other's transmissions. Transmissions by these "hidden" nodes will frequently collide when physical carrier sensing is unable to infer a busy medium at the central node.
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    7 ||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_hidden_nodes/figs:hidden_node_topology.png, width=800)]]  ||
     7||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_hidden_nodes/figs:hidden_node_topology.png, width=400)]]  ||
    88||  '''Classic Hidden Node Topology'''  ||
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