System and method for reducing power consumption in a wireless communications network
First Claim
1. A method for reducing power consumption in a multi-hop wireless communications network including a plurality of nodes, comprising;
- receiving, at an intermediate node, a signal from a source node, the signal including a relay request, a message, a relay power requirement and a regeneration power requirement;
accepting the request if available power at the intermediate node exceeds an amount of power required to relay the message to a destination node;
selecting a relay mode or a regeneration mode based on local criteria at the intermediate node;
relaying the message to the destination node using the selected mode.
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Abstract
A system and method reduce power consumption in a multi-hop wireless communications network. A signal is received from a source node in an intermediate node. The signal includes a request to relay a message to a destination node. The request includes information on power requirements to relay the message either in a relay mode or a regeneration mode. If the available power at the intermediate node exceeds the power requirements, then the request is accepted. Either the relay mode or the regeneration mode is selected, based on criteria for retransmitting the message, and the message is then relayed to the destination node using the selected mode.
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Citations
9 Claims
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1. A method for reducing power consumption in a multi-hop wireless communications network including a plurality of nodes, comprising;
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receiving, at an intermediate node, a signal from a source node, the signal including a relay request, a message, a relay power requirement and a regeneration power requirement; accepting the request if available power at the intermediate node exceeds an amount of power required to relay the message to a destination node; selecting a relay mode or a regeneration mode based on local criteria at the intermediate node; relaying the message to the destination node using the selected mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communications system including a plurality of nodes, each node comprising;
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a mode selector configured to select one of a relay mode and a regeneration mode; first switch means configured to route a received signal to a transmitter if the selected mode is the relay mode, and to a decoder if the selected mode is the regeneration mode, the decoder providing a decoded signal; and second switch means configured to route the decoded signal to an encoder coupled to the transmitter if the selected mode is the regeneration mode.
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Specification