Adaptation protocols for local peer group (LPG) networks in dynamic roadway environments
AssigneesTelcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
InventorsWai Chen, Taek-Jin Kwon, Ryokichi Onishi, Rama Vuyyuru
Life of this patent
Estimating the term…
Abstract
A method and system for determining a size of a local peer group (LPG) network in a dynamic roadway (mobile) environment is provided. In one embodiment, the method comprises measuring a roundtrip time between a first node and a second node, and utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table. In another embodiment, the method comprises determining when the roundtrip time exceeds a time interval of the heartbeat signal, and when the roundtrip time exceeds the time interval of the heartbeat signal adjusting the size of the local peer group network.
Claims18
A computer implemented method for determining a size of a local peer group network, comprising:
- measuring a roundtrip time between a first node and a second node;
- utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table, wherein the computer performs one or more steps of measuring and utilizing;
- transmitting a heartbeat signal from the first node to the second node;
- receiving the heartbeat signal at the second node;
- and
- transmitting a message response from the second node to the first node in response to receiving the heartbeat signal, wherein the message response comprises a node identifier and a hop count value and the roundtrip time is associated with the hop count value in the lookup table.
A computer implemented method for determining a size of a local peer group network, comprising:
- measuring a roundtrip time between a first node and a second node;
- and
- utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table, wherein the computer performs one or more steps of measuring and utilizing;
- when the roundtrip time exceeds the time interval of a heartbeat signal, adjusting the size of the local peer group network.
A computer program product for determining a size of a local peer group network, comprising:
- a storage device readable by a processor and storing instructions for execution by the processor for performing a method comprising:
- measuring a roundtrip time between a first node and a second node;
- utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table, wherein the computer performs one or more steps of measuring and utilizing;
- transmitting a heartbeat signal from the first node to the second node;
- receiving the heartbeat signal at the second node;
- and
- transmitting a message response from the second node to the first node in response to receiving the heartbeat signal, wherein the message response comprises a node identifier and a hop count value and the roundtrip time is associated with the hop count value in the lookup table.
A computer program product for determining a size of a local peer group network, comprising:
- a storage device readable by a processor and storing instructions for execution by the processor for performing a method comprising:
- measuring a roundtrip time between a first node and a second node;
- and
- utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table, wherein the computer performs one or more steps of measuring and utilizing;
- when the roundtrip time exceeds a time interval of a heartbeat signal, adjusting the size of the local peer group network.
A system for determining a size of a local peer group network, comprising:
- a processor operable to measure a roundtrip time between a first node and a second node and utilize the measured roundtrip time to select the size of the local peer group network from a lookup table;
- wherein the processor is further operable to transmit a heartbeat signal from the first node to the second node, receive the heartbeat signal at the second node, and transmit a message response from the second node to the first node in response to receiving the heartbeat signal, wherein the message response comprises a node identifier and a hop count value and the roundtrip time is associated with the hop count value in the lookup table.
A system for determining a size of a local peer group network, comprising:
- a processor operable to measure a roundtrip time between a first node and a second node and utilize the measured roundtrip time to select the size of the local peer group network from a lookup table;
- wherein the processor is further operable to determine when the roundtrip time exceeds a time interval of a heartbeat signal, and when the roundtrip time exceeds the time interval of the heartbeat signal adjust the size of the local peer group network.
Dependencies are inferred from the claim text.