| 摘要 |
<p>Provided are a communication method, a communication system, a response requesting device, a responding device and a computer program, which can reduce the probability for collisions to occur thereby to enhance the communication efficiency, in case one response requesting device such as a reader requests many responding devices such as nodes using an RFID tag for responses so that the responding devices may return responses to the response requests, thereby to realize the shortening of an access time period and to realize the workability and the serviceability. A response requesting device (1) transmits, in case it transmits a response request for requesting a return to responding devices (2), a response request containing a probability variable to set the inverse of a natural number indicating the number of the responding devices (2), as a probability. The responding devices (2) respond on the basis of the probability based on the probability variable received.</p> |
