| 摘要 |
A method for exchanging beacons between devices having asymmetric links and a system using the method are provided to classify the devices into a normal power device and a low power device based on a transmission range, so that the low power device can forward beacons to the normal power device through at least one relay device, thereby effectively reducing beacon collision. When a low power device(L) receives beacons of a normal power device(N), the device(L) checks whether an asymmetric link with the device(N) exists on the basis of the received beacons. If so, the device(L) negotiates with at least one relay device(R) to demand relay for the asymmetric link. Based on the negotiated results, the device(R) notifies the device(L) and the device(N) which the device(L) wants to communicate with of the negotiated results. |
