公开(公告)号：US20180212806A1

公开(公告)日：2018-07-26

申请号：US15923835

申请日：2018-03-16

Applicant: Khalifa University of Science and Technology

Inventor： Arafat Jamil Al-Dweik ,  Youssef Iraqi ,  Mohammed Al-Mualla

IPC: H04L27/06 ,  H04L5/00 ,  H04B1/10

CPC classification number: H04L27/06 ,  H04B1/10 ,  H04L5/0048

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.

公开(公告)号：US09954699B2

公开(公告)日：2018-04-24

申请号：US15350948

申请日：2016-11-14

Applicant: Khalifa University of Science and Technology

Inventor： Arafat Jamil Al-Dweik ,  Youssef Iraqi ,  Mohammed Al-Mualla

IPC: H03D1/24 ,  H04L27/06 ,  H04B1/10 ,  H04L5/00

CPC classification number: H04L27/06 ,  H04B1/10 ,  H04L5/0048

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.