Method and apparatus for multi-channel MAC protocol using multi-tone synchronous collision resolution
First Claim
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1. A method of operating a mobile ad hoc network (MANET) that includes a set of mobile wireless communication nodes which contend for communication resources of the MANET, comprising:
- from nodes of said set of contending nodes, synchronously transmitting a corresponding plurality of frequency tones;
selecting some of the nodes of said set of contending nodes in response to the plurality of frequency tones;
removing the selected nodes from said set of contending nodes; and
after said removing step, transmitting data packets from a plurality of nodes that remain in said set of contending nodes to respectively corresponding destination mobile wireless communication nodes of the MANET on respectively different frequency channels.
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Abstract
A multi-tone synchronous collision resolution system permits communication nodes within a MANET to contend simultaneously for a plurality of available channels. The communication nodes contend for access using a synchronous signaling mechanism that utilizes multiple tones in a synchronous manner to resolve contentions. Contentions are arbitrated locally, and a surviving subset of communication nodes is selected. The communication nodes of the surviving subset then transmit data packets simultaneously across the available communication channels.
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20 Claims
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1. A method of operating a mobile ad hoc network (MANET) that includes a set of mobile wireless communication nodes which contend for communication resources of the MANET, comprising:
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from nodes of said set of contending nodes, synchronously transmitting a corresponding plurality of frequency tones; selecting some of the nodes of said set of contending nodes in response to the plurality of frequency tones; removing the selected nodes from said set of contending nodes; and after said removing step, transmitting data packets from a plurality of nodes that remain in said set of contending nodes to respectively corresponding destination mobile wireless communication nodes of the MANET on respectively different frequency channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile wireless communication apparatus for use in a mobile ad hoc network (MANET) as one of a set of mobile wireless communication nodes of the MANET which contend for communication resources of the MANET, comprising:
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a wireless communication interface for supporting wireless communication with other nodes of the MANET; a contention resolution controller coupled to said wireless communication interface and cooperable with other nodes of the MANET for determining in response to a plurality of frequency tones signaled synchronously in the MANET whether said mobile wireless communication apparatus should be removed from said set of contending nodes; a communication controller coupled to said wireless communication interface and cooperable therewith for supporting wireless communication of data packets associated with a user communication application; and said contention resolution controller coupled to said communication controller, said contention controller cooperable with said communication controller and said wireless communication interface in response to a determination that the mobile wireless communication apparatus is not removed from said set of contending nodes for permitting wireless communication of said data packets on a first communication channel while other nodes of the MANET are simultaneously transmitting data packets on respective communication channels which are different from one another and which are different from said first communication channel. - View Dependent Claims (14, 15, 16)
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17. A mobile ad hoc network (MANET) comprising:
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a plurality of mobile wireless communication nodes, including a set of said mobile wireless communication nodes which contend for communication resources of the MANET; and a contention resolution system distributed among said plurality of mobile wireless communication nodes, said contention resolution system operable for selecting some of the nodes of said set of contending nodes in response to a corresponding plurality of frequency tones transmitted synchronously from nodes of said set of contending nodes and further operable for removing the selected nodes from said set of contending nodes; and said contention resolution system operable after removing the selected nodes from said set of contending nodes for effectuating transmission of data packets from a plurality of nodes that remain in said set of contending nodes to respectively corresponding destination nodes of the MANET on respectively different frequency channels. - View Dependent Claims (18, 19, 20)
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Specification