5 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

The invention discloses a rate splitting assisted near field communication hybrid beam robust design method, and belongs to the technical field of wireless communication and novel multiple access. The method comprises the following steps: S1, based on near-field spherical wave propagation characteristics, establishing a near-field channel model considering channel imperfection; s2, the base station sends information to a near-field user by adopting a rate splitting multiple access technology, and a user side sequentially decodes the public information flow and the private information flow by utilizing a receiver with imperfect interference elimination capability; and S3, by taking maximization of the worst user transmission rate as an optimization target, constructing a robust beam forming design problem, providing a block coordinate descent algorithm with a penalty term, and jointly optimizing a hybrid beam forming matrix and a common rate allocation variable. According to the invention, only eight radio frequency links are needed to realize transmission performance close to an all-digital architecture, and compared with a traditional space division multiple access scheme, the transmission rate and robustness of the system can be obviously improved.

The embodiment of the invention provides an information processing method, communication test equipment and a storage medium, and the method comprises the steps: distributing received downlink control information of a plurality of terminal groups to access cell unit instances corresponding to the terminal groups; generating scheduling parameters of each terminal group according to the downlink control information allocated to each access cell unit instance; and respectively sending the scheduling parameter of each terminal group through the access cell unit instance corresponding to each terminal group and the activation cell unit instance corresponding to each terminal group. According to the embodiment of the invention, the received downlink control information of the plurality of terminal groups is distributed to the access cell unit instance corresponding to each terminal group, and each terminal group can form spatial isolation with other terminal groups, so that the corresponding scheduling parameters have spatial isolation characteristics; therefore, the terminal group can have the channel characteristic of spatial isolation, so that the space division multiple access function of the super cell is realized.