Abstract: A method can be implemented by a first device. A first data sequence can be received and can include a first data packet and a second data packet. It can be determined that first detection of the first data packet from the first data sequence is erroneous. The first data sequence can be stored as a first buffered data sequence in a memory buffer. A second data sequence that includes the second data packet and that excludes the first data packet can be received. The second data packet can be detected from the second data sequence. The first data packet can be detected based on the first buffered data sequence and the second data packet.

Abstract: There is provided an enhanced OFDM communication system using an enhanced channel estimation and data detection techniques. The system is based on replacing pilot symbols by real-valued information symbols, which enables realizing one-shot blind channel estimator (OSBCE) with low complexity. The channel estimator used is equivalent to pilot-based channel estimators for a wide range of signal to noise ratios (SNRs), yet, the OSBCE offers higher power and spectral efficiencies.

Abstract: The present invention proposes a demodulator device, a receiver and a demodulation method for M-ary amplitude shift keying systems (MASK) that requires partial knowledge of the CSI, namely, the channel attenuation coefficient. Therefore, the new demodulator, receiver and demodulation method do not require the knowledge of the channel phase shift. Consequently, no complicated channel estimation techniques are required, and the system will be very robust to the system impairments such as phase noise, I-Q imbalance, etc. In this sense, the new technique is denoted as semi-coherent demodulation (SCD). To reduce the complexity of the new SCD, a suboptimal demodulator is derived which has much lower complexity than the optimal while providing almost the same error probability.

Abstract: There is provided an enhanced OFDM communication system using an enhanced channel estimation and data detection techniques. The system is based on replacing pilot symbols by real-valued information symbols, which enables realizing one-shot blind channel estimator (OSBCE) with low complexity. The channel estimator used is equivalent to pilot-based channel estimators for a wide range of signal to noise ratios (SNRs), yet, the OSBCE offers higher power and spectral efficiencies.

Abstract: The present invention proposes a demodulator device, a receiver and a demodulation method for M-ary amplitude shift keying systems (MASK) that requires partial knowledge of the CSI, namely, the channel attenuation coefficient. Therefore, the new demodulator, receiver and demodulation method do not require the knowledge of the channel phase shift. Consequently, no complicated channel estimation techniques are required, and the system will be very robust to the system impairments such as phase noise, I-Q imbalance, etc. In this sense, the new technique is denoted as semi-coherent demodulation (SCD). To reduce the complexity of the new SCD, a suboptimal demodulator is derived which has much lower complexity than the optimal while providing almost the same error probability.

Abstract: The present invention proposes a demodulator device, a receiver and a demodulation method for M-ary amplitude shift keying systems (MASK) that requires partial knowledge of the CSI, namely, the channel attenuation coefficient. Therefore, the new demodulator, receiver and demodulation method do not require the knowledge of the channel phase shift. Consequently, no complicated channel estimation techniques are required, and the system will be very robust to the system impairments such as phase noise, I-Q imbalance, etc. In this sense, the new technique is denoted as semi-coherent demodulation (SCD). To reduce the complexity of the new SCD, a suboptimal demodulator is derived which has much lower complexity than the optimal while providing almost the same error probability.

Abstract: The present invention proposes a demodulator device, a receiver and a demodulation method for M-ary amplitude shift keying systems (MASK) that requires partial knowledge of the CSI, namely, the channel attenuation coefficient. Therefore, the new demodulator, receiver and demodulation method do not require the knowledge of the channel phase shift. Consequently, no complicated channel estimation techniques are required, and the system will be very robust to the system impairments such as phase noise, I-Q imbalance, etc. In this sense, the new technique is denoted as semi-coherent demodulation (SCD). To reduce the complexity of the new SCD, a suboptimal demodulator is derived which has much lower complexity than the optimal while providing almost the same error probability.

Abstract: A system, method, and device are provided that receive an image sequence from a camera, processes the image sequence, extract gaze information, map the user's eye movements to movement of the mouse cursor, and initiates mouse clicks based on user behavior.

Abstract: A system, method, and device are provided that receive an image sequence from a camera, processes the image sequence, extract gaze information, map the user's eye movements to movement of the mouse cursor, and initiates mouse clicks based on user behavior.