System and Method for Mobile Ad Hoc Network
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Abstract
A method and system for geocasting data packets in a MANET. The MANET is combined with a long-range network such that a wireless terminal can decide whether to rebroadcast a geocast packet over the MANET, the long-range network, or not at all, depending on the wireless terminal'"'"'s proximity to the geocast region, the location of the originating wireless terminal, or both. A wireless terminal close to or within the geocast region can rebroadcast on the MANET, whereas a wireless terminal far from the geocast region can rebroadcast on the long-range network.
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Citations
32 Claims
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1-22. -22. (canceled)
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23. A wireless terminal comprising:
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a receiving means for receiving a geocast packet transmitted from a sending terminal; a counting means for determining whether the received geocast was previously received at least a number of times; a terminal proximity means for determining the proximity of the wireless terminal to the sending terminal; a geocast-region proximity means for determining the proximity of the wireless terminal to a geocast region; and a retransmission means for selectively retransmitting the received geocast packet on a MANET, the means for selectively retransmitting configured to retransmit the geocast packet based on the determination of the counting means, retransmit the geocast based on the determination of the terminal proximity means, if the packet has not been retransmitted based on the determination of the counting means, and retransmit the geocast based on the determination of the geocast-region proximity means, if the packet has not been retransmitted based on the determination of the terminal proximity means. - View Dependent Claims (24, 25, 26, 27)
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28. A network comprising:
a MANET formed by a plurality of wireless terminals, at least one wireless terminal being operable to; receive geocast packets transmitted on said MANET from other wireless terminals located in said MANET, determine whether the received geocast packet was previously received at least a number of times, determine the proximity of the wireless terminal to the sending terminal, determine the proximity of the wireless terminal to a geocast region, retransmit the geocast packet if the geocast packet was not previously received at least a number of times, retransmit the geocast packet based on the proximity of the wireless terminal to the sending terminal, if it is determined not to retransmit the geocast packet based on the number of times the geocast packet was received, and retransmit the geocast packet based on the proximity of the wireless terminal to the sending terminal, if it is determined not to retransmit the geocast packet based on the proximity of the wireless terminal to the geocast region. - View Dependent Claims (29, 30, 31, 32)
Specification