System for dynamically shifting beacons in distributed wireless network and method thereof
First Claim
1. A method for dynamically shifting beacons in a distributed wireless network, said method comprising:
- selecting a slot among free lower slots which are anterior beacon slots, that are not used during a beacon period of a superframe;
requesting protection of the selected free lower slot in a beacon group; and
at a device, receiving a response to the protection request and shifting the beacons to the selected free lower slot to broadcast the beacons.
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Abstract
A system for dynamically shifting beacons in a distributed wireless network and a method thereof are disclosed. In a medium access control for a wireless personal area network based on a mobile ad-hoc network, beacons are shifted to other free lower slots in order to reduce the size of a beacon period. Also, collisions that may occur during the shifting of the beacons are detected and avoided. According to the system and method, the size of the beacon period for transmitting data can sufficiently be secured by dynamically reducing the size of the beacon period without collisions.
27 Citations
23 Claims
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1. A method for dynamically shifting beacons in a distributed wireless network, said method comprising:
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selecting a slot among free lower slots which are anterior beacon slots, that are not used during a beacon period of a superframe;
requesting protection of the selected free lower slot in a beacon group; and
at a device, receiving a response to the protection request and shifting the beacons to the selected free lower slot to broadcast the beacons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12)
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8. The method as claimed in claim 31 wherein the response includes the beacon period occupancy information element that includes information of the device, a first index of a present beacon slot, and a second index of the selected free lower slot.
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13. A system for dynamically shifting beacons in a distributed wireless network based on a mobile ad-hoc network having at least one device, the system comprising:
a requesting device which selects a slot among free lower slots which are anterior beacon slots that are not used during a beacon period of a superframe, requests protection of the selected free lower slot in a beacon group, receives a response from all neighboring devices, and shifts the beacons to the selected free lower slot to broadcast the beacons. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
Specification