METHOD FOR ENERGY EFFICIENT PROSPECTIVE PEER DISCOVERY IN AN AD HOC NETWORK
First Claim
1. A method for a client node to discover a peer provider node in an ad hoc network, comprising:
- activating a first ad hoc interface in the client node while in a discovery mode to establish a channel for a first time period and transmitting a first beacon to advertise presence of the client node to other nodes within the transmission range of the client node to acquire service information from at least one prospective peer provider node within the transmission range of the client node; and
activating a second ad hoc interface in at least one of a plurality of prospective peer provider nodes for a second period of time to listen for beacons from other nodes, wherein the second period of time is less than or equal to the first period of time.
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Abstract
Energy-efficient discovery techniques are provided for a client node to discover at least one peer provider node in an ad hoc network. For example, the client node can be configured to turn on its first ad hoc interface while in a discovery mode to establish a channel for a first time period. The client node can then transmit a first beacon to advertise its presence to other nodes within the transmission range of the client node to acquire service information from at least one of a plurality of prospective peer provider nodes within the transmission range of the client node. At least one of the prospective peer provider nodes is configured to turn on its second ad hoc interface for a second period of time to listen for beacons from other nodes. The second period of time is less than or equal to the first period of time.
151 Citations
34 Claims
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1. A method for a client node to discover a peer provider node in an ad hoc network, comprising:
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activating a first ad hoc interface in the client node while in a discovery mode to establish a channel for a first time period and transmitting a first beacon to advertise presence of the client node to other nodes within the transmission range of the client node to acquire service information from at least one prospective peer provider node within the transmission range of the client node; and activating a second ad hoc interface in at least one of a plurality of prospective peer provider nodes for a second period of time to listen for beacons from other nodes, wherein the second period of time is less than or equal to the first period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An ad hoc network, comprising:
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at least one prospective peer provider node; a client node configured to turn on a first ad hoc interface in the client node while in a discovery mode to establish a channel for a first time period and transmit a first beacon to advertise presence of the client node to other nodes within the transmission range of the client node to acquire service information from at least one of the prospective peer provider nodes within the transmission range of the client node; and wherein at least one of the prospective peer provider nodes is configured to turn on a second ad hoc interface in the at least one of the prospective peer provider nodes for a second period of time to listen for beacons from other nodes, wherein the second period of time is less than or equal to the first period of time. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification