4 results about "Spatial division multiple access" patented technology

The invention provides an uplink MIMO-NOMA (Multiple Input Multiple Output-Non-Orthogonal Multiple Access) system optimization method with a maximized sum rate, which comprises the following steps: firstly, in order to suppress interference between a transmission cluster and a reflection cluster, providing an inter-cluster SIC method: clustering users according to transmission characteristics, adopting space division multiple access in each cluster, and performing inter-cluster SIC of NOMA transmission so as to reduce the interference between the clusters; secondly, a non-convex optimization problem aiming at maximizing the total rate of the system is formulated and solved by using an alternating optimization framework, in the framework, a receiving equalizer is optimized according to a minimum mean square error standard, and transmitting power control of a user is processed through successive convex approximation, so that sub-problems are easy to process; and finally, the beam forming of the active STAR-RIS adopts a sequential rotation design. According to the invention, the dual-fading effect is effectively overcome by adjusting the phase shift and amplitude of electromagnetic waves, an alternating optimization framework is also provided to solve the described non-convex problem, user power is controlled through continuous convex approximation, and active STAR-RIS beam forming is realized through sequential rotation.

The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical communication receiving and data recovery methods for space division multiple access multi-to-multi communication, it is related to optical communication receiving technical field.The application discloses a kind of optical

The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel light communication methods, device and equipment based on Micro-LED array, it is related to visible light communication and intelligent transportation technical field.The application discloses a kind of space division multiple access parallel