Beacon coordination and medium access

Details Beacon coordination and medium access Beacon coordination and medium access

2004-12-14

2010-02-23

Harper, Vincent P (Department: 2617)

Multiplex communications

Communication over free space

C370S395400

Reexamination Certificate

active

07668126

ABSTRACT:
Each of a plurality of nodes in a wireless network is capable of generating, transmitting, and receiving beacons in a distribute fashion. Each beacon contains information regarding the order of which other nodes are to transmit beacons and wireless medium access information at to when various nodes are to access the network. Nodes that are in separate “extended neighborhoods” are permitted to transmit their beacons simultaneously without risking beacon collisions. The beacons contain information that is used to ensure this result. Using the distributed beacon mechanism, each nod can reserve access to the wireless medium. In the disclosed embodiments, a central coordinator is not needed.

REFERENCES:
patent: 6982987 (2006-01-01), Cain
patent: 7412265 (2008-08-01), Chen et al.
patent: 7450553 (2008-11-01), Park et al.
patent: 7564812 (2009-07-01), Elliott
patent: 2006/0104301 (2006-05-01), Beyer et al.

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