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Beacon scheduling method in multi-hop ad-hoc networks

  • US 8,254,345 B2
  • Filed: 08/31/2006
  • Issued: 08/28/2012
  • Est. Priority Date: 08/31/2005
  • Status: Active Grant
First Claim
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1. A beacon scheduling method in a multi-hop ad-hoc network, comprising:

  • (a) transmitting an advertisement message to initial nodes (INs);

    (b) receiving respective joining messages from each of the INs; and

    (c) assigning non-colliding beacon slots based on the respective joining messages,wherein the advertisement message is transmitted from one of a base station (BS) and a cluster head (CH) to each of the INs,wherein, before said operation (c), an IN which is assigned one of the beacon slots becomes one of a gateway (GW), a cluster head (CH), and an ordinary node (ON),wherein, when the CH assigns a frame of a beacon transmission period (BTP) to the GW as a first beacon slot, the GW uses a same frame of a beacon relay period (BRP) as the frame of the BTP, as a second beacon slot.

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