Disclosed herein is a first portable electronic device facilitating a proximity based interaction with at least one second portable electronic device. The first portable electronic device may include at least one first sensor device configured to generate at least one of a first sensor data, at least one second sensor data, and a third sensor data. Further, the first portable electronic device may include a first transceiver configured for communicating with at least one second transceiver associated with the at least one second portable electronic device. Further, the first portable electronic device may include a first processor communicatively coupled with each of the first transceiver and the at least one first sensor device. Further, the first portable electronic device may include a presentation device configured to present the combined digital asset and a memory device configured for storing the combined digital asset based on the post-tap gesture.

A communication system transmits data signals between communication nodes. A first data signal is transmitted as an electromagnetic wave along a first data transmission path to a receiver using skywave propagation. A second data signal, identical to the first data signal, is transmitted to the receiver along a second data transmission path. The two data signals are compared at the receiver to determine any distortion caused by the skywave propagation. Data regarding the distortion is sent back to the transmitter so that subsequent transmitted data signals may be preconditioned when sent by skywave propagation.

A communication system transmits data signals between communication nodes. A first data signal is transmitted as an electromagnetic wave along a first data transmission path to a receiver using skywave propagation. A second data signal, identical to the first data signal, is transmitted to the receiver along a second data transmission path. The two data signals are compared at the receiver to determine any distortion caused by the skywave propagation. Data regarding the distortion is sent back to the transmitter so that subsequent transmitted data signals may be preconditioned when sent by skywave propagation.

An apparatus, method and wireless device for fast scanning of a wireless communications medium are disclosed. According to one aspect, a method includes tuning a transceiver of the wireless node to a first frequency. The method further includes computing a first difference frequency, the first difference frequency being a difference between the first frequency and a second frequency. The method further includes generating a first control signal to configure a first backscattering device to switch between at least two states at a switching frequency equal to the first difference frequency.

An apparatus, method and wireless device for fast scanning of a wireless communications medium are disclosed. According to one aspect, a method includes tuning a transceiver of the wireless node to a first frequency. The method further includes computing a first difference frequency, the first difference frequency being a difference between the first frequency and a second frequency. The method further includes generating a first control signal to configure a first backscattering device to switch between at least two states at a switching frequency equal to the first difference frequency.

Proposed are a multi-access method and apparatus for a LoRa tag using backscatter communication. The multi-access apparatus for a LoRa tag using backscatter communication may include a contention slot unit configured to receive a signal for a contention participation request from a base station and participate in a contention according to a distributed queuing (DQ) protocol using a backscatter signal if data to be transmitted is present, an FBP unit configured to receive a result of the contention from the base station and check whether the result of the contention is a success, and a data slot unit configured to transmit sensed data to the base station using the backscatter signal if the result of the contention is a success.

Proposed are a multi-access method and apparatus for a LoRa tag using backscatter communication. The multi-access apparatus for a LoRa tag using backscatter communication may include a contention slot unit configured to receive a signal for a contention participation request from a base station and participate in a contention according to a distributed queuing (DQ) protocol using a backscatter signal if data to be transmitted is present, an FBP unit configured to receive a result of the contention from the base station and check whether the result of the contention is a success, and a data slot unit configured to transmit sensed data to the base station using the backscatter signal if the result of the contention is a success.

A system for backscatter-based cooperative communication in a wireless-powered heterogeneous network includes a low-power access point, a hybrid access point, and Internet of Things (IoT) devices. The low-power access point transmits an unmodulated carrier. The hybrid access point is in communication with a primary device using a signal. Internet of Things (IoT) devices harvest energy of the unmodulated carrier and the signal, and each of the IoT devices sequentially transmits information to the hybrid access point through a bistatic backscatter communication-based cooperation mode or non-cooperation mode using the harvested energy.

A system for backscatter-based cooperative communication in a wireless-powered heterogeneous network includes a low-power access point, a hybrid access point, and Internet of Things (IoT) devices. The low-power access point transmits an unmodulated carrier. The hybrid access point is in communication with a primary device using a signal. Internet of Things (IoT) devices harvest energy of the unmodulated carrier and the signal, and each of the IoT devices sequentially transmits information to the hybrid access point through a bistatic backscatter communication-based cooperation mode or non-cooperation mode using the harvested energy.

A multiband sensing system includes an active multiband sensing unit configured to transmit a radio frequency (RF) signal in multiple bands and communicate with a network. The active multiband sensing unit includes at least one transmitting antenna configured to transmit the RF signal. The multiband sensing system includes a passive multiband sensing unit including at least one receiving antenna configured to receive the RF signal, an acoustic actuator powered by the received RF signal including an actuating sensor element configured to actuate in response to receiving extracted modulated information of the RF signal, and an acoustic detector. The acoustic detector includes a detector transmitting antenna configured to backscatter a new frequency band signal to the active multiband sensing unit and a detector sensor element configured to sense data. The sensed data is modulated over the received RF signal to produce the new frequency band signal.