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Wireless communication system, wireless communication method, and transmitting terminal

  • US 9,351,227 B2
  • Filed: 09/05/2013
  • Issued: 05/24/2016
  • Est. Priority Date: 11/19/2012
  • Status: Expired due to Fees
First Claim
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1. A wireless communication system comprising:

  • a plurality of wireless terminals constituting a wireless ad hoc network, the plurality of wireless terminals including a receiving terminal and a plurality of transmitting terminals, each of the plurality of transmitting terminals being configured to execute direct communication in which information is transmitted directly to the receiving terminal or indirect communication in which the information is transmitted indirectly to the receiving terminal through at least one other wireless terminal;

    a reception side terminal number obtainer that obtains a reception side terminal number which is the number of the wireless terminals with which the receiving terminal is able to communicate directly;

    a transmission side terminal number obtainer that obtains a transmission side terminal number which is the number of the wireless terminals with which the transmitting terminal is able to communicate directly for each of a target transmitting terminal which is one of the plurality of transmitting terminals and a neighboring transmitting terminal which is the transmitting terminal with which the target transmitting terminal is able to communicate directly; and

    a setter that calculates a hidden terminal number parameter which is defined to increase as a hidden terminal number, which is the number of transmitting terminals with which the receiving terminal is able to communicate directly and with which a terminal of interest is unable to communicate directly, increases when the terminal of interest is the target transmitting terminal based on the transmission side terminal number for the target transmitting terminal and the reception side terminal number, calculates the hidden terminal number parameter when the terminal of interest is the neighboring transmitting terminal based on the transmission side terminal number for the neighboring transmitting terminal and the reception side terminal number, selects the indirect communication for the target transmitting terminal when the hidden terminal number parameter for the target transmitting terminal is larger than the hidden terminal number parameter for the neighboring transmitting terminal, and sets the target transmitting terminal to execute the selected communication.

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