Abstract: An interdental brush comprising an interdental brush bar and a grip, the interdental brush bar having a central shaft and a joint portion, the central shaft surface axially staggering a plurality of first bristle sets and a plurality of second bristle sets, the first bristle set has two first bristles, and the second bristle set has two second bristles, and each of the first bristles is connected with an adjacent second bristles to form a squeegee. The grip connects the joint portion, and the squeegee can increase the contact area with the teeth to enhance the cleaning effect.

Abstract: An interdental brush comprising an interdental brush bar and a grip, the interdental brush bar having a central shaft and a joint portion, the central shaft surface axially staggering a plurality of first bristle sets and a plurality of second bristle sets, the first bristle set has two first bristles, and the second bristle set has two second bristles, and each of the first bristles is connected with an adjacent second bristles to form a squeegee. The grip connects the joint portion, and the squeegee can increase the contact area with the teeth to enhance the cleaning effect.

Abstract: A group host selection method for a device-to-device network and a control platform for selecting a group host are provided. The device-to-device network includes a user device and a gateway device, the group host selection method includes the steps of: calculating a signal reception capability corresponding to a transmission path from the gateway device to the user device; calculating a first computation capability of the gateway device; calculating a second computation capability of the user device; and selecting one of the user device and the gateway device to be a group host according to the signal reception capability and the first computation capability of the gateway device and the second computation capability of the user device.

Abstract: A control method, a network system and a control platform for mobile-edge computing (MEC) are provided. The control method can select at least one of relay gateways in the device-to-device relay network as a mobile-edge cloudlet for a user equipment. An application service program may be performed by the mobile-edge cloudlet, that the user equipment may receive a corresponding response with respect to an application service without accessing to a core network.

Abstract: A group host selection method for a device-to-device network and a control platform for selecting a group host are provided. The device-to-device network includes a user device and a gateway device, the group host selection method includes the steps of: calculating a signal reception capability corresponding to a transmission path from the gateway device to the user device; calculating a first computation capability of the gateway device; calculating a second computation capability of the user device; and selecting one of the user device and the gateway device to be a group host according to the signal reception capability and the first computation capability of the gateway device and the second computation capability of the user device.

Abstract: A control method, a network system and a control platform for mobile-edge computing (MEC) are provided. The control method can select at least one of relay gateways in the device-to-device relay network as a mobile-edge cloudlet for a user equipment. An application service program may be performed by the mobile-edge cloudlet, that the user equipment may receive a corresponding response with respect to an application service without accessing to a core network.

Abstract: Communication methods and communication devices are disclosed.

Abstract: A transmitter and an identification pattern transmission method thereof and a receiver and an identification pattern detection method thereof are provided. The transmitter includes a random sequence generator, a mapper and a resource allocation unit. The identification pattern transmission method includes following steps. A random sequence is generated. The random sequence is mapped to an identification pattern. The identification pattern is partitioned into a plurality of identification segments. The identification segments are allocated to a plurality of communication resource blocks to generate a transmitted signal having information of the identification pattern, where each of the communication resource blocks is spaced from another adjacent communication resource block by a predetermined number of symbols and/or a predetermined number of subcarriers.

Abstract: A signal receiving method of a receiver includes following steps. Multiple time-domain received signals are transformed into multiple frequency-domain received signals, and channel response matrices corresponding to the frequency-domain received signals are estimated. The frequency-domain received signals are STBC decoded and multiple original combination signals are obtained based on the corresponding channel response matrices. The frequency-domain received signals are rearranged, and the rearranged frequency-domain received signals are STBC decoded and multiple rearrangement combination signals are obtained based on the corresponding channel response matrices. The original combination signals and the rearrangement combination signals are randomly chosen and summed to obtain multiple complex signals. The complex signal with minimum interference power is selected and then the selected signal is used to cancel interference and compensate the channel effect to obtain the detected data.

Abstract: A signal receiving method of a receiver includes following steps. Multiple time-domain received signals are transformed into multiple frequency-domain received signals, and channel response matrices corresponding to the frequency-domain received signals are estimated. The frequency-domain received signals are STBC decoded and multiple original combination signals are obtained based on the corresponding channel response matrices. The frequency-domain received signals are rearranged, and the rearranged frequency-domain received signals are STBC decoded and multiple rearrangement combination signals are obtained based on the corresponding channel response matrices. The original combination signals and the rearrangement combination signals are randomly chosen and summed to obtain multiple complex signals. The complex signal with minimum interference power is selected and then the selected signal is used to cancel interference and compensate the channel effect to obtain the detected data.