8results about How to "Improve throughput performance" patented technology

Embodiments of the present disclosure relate to communication methods, devices, and computer-readable storage media in a home wireless network. On the one hand, a gateway device switches from a first channel to a second channel in response to detecting an event that triggers switching of an operating channel, and sends an indication of the switch to each repeater device. The repeater device switches from the first channel to the second channel in response to receiving the indication. On the other hand, the repeater device switches from the first channel to the second channel in response to detecting an event that triggers switching of an operating channel; and sends information about the switch to the gateway device via a third channel different from the first and second channels. The gateway device switches from the first channel to the second channel in response to receiving the information; and sends an indication of the switch to other repeater devices so that these devices also switch to the second channel in response to the indication. Thereby, the communication between the gateway device and each repeater device is quickly restored while ensuring high throughput performance.

In order to solve the actual needs of Wi-Fi network channel allocation in reality, the present invention proposes a conflict-avoiding Wi-Fi network channel allocation method. This method takes the total network throughput as the optimization target, proposes the concept of throughput weakening degree to quantitatively characterize the impact of the conflict between adjacent APs on the same channel, and establishes a corresponding graph model. In a greedy manner, the APs to be allocated channels are selected in turn and the specific channels to be allocated are determined. Experimental results show that the present invention can achieve better network performance than the traditional method.

The invention discloses a PS ratio control system and method for optimizing SWIPT multi-hop relay throughput, the system comprises a source node, the source node forwards information to a destination node hop by hop through a relay set, and the source node is powered by an internal battery or an external power supply; the relays all work in a passive state; energy is collected from a radio frequency signal of a previous hop adjacent node of the relay node by adopting an SWIPT technology, and decoding of a data packet and forwarding of the data packet to a next hop adjacent node are completed at the same time by utilizing a power distribution (PS) protocol; the power distribution ratio, namely the PS ratio, is set as follows: the radio frequency signal at the relay node is divided into two paths, one part is used for energy collection, and the other part is used for information decoding.

The invention provides an efficient fusion random network coding method and system, and relates to the technical field of network coding. The method comprises the following steps: an information source broadcasts a plurality of original data packets and transmits the original data packets to an information sink; the information sink receives a plurality of original data packets, and judges whether the transmission has an error or not by adopting an error detection code inspection mode; when the number of the data packets correctly received by the information sink is equal to the number of the original data packets broadcasted by the information source, the transmission process is ended; and when the number of the data packets correctly received by the information sink is not equal to the number of the original data packets broadcasted by the information source, the information source continues to transmit the random network coding data packets until the information sink decodes and restores a plurality of original data packets, and the transmission process is ended. According to the invention, the throughput performance of packet-level random network coding can be improved.

A method and apparatus for preventing unnecessary NPCA by delivering NPCA mode via a management frame in a wireless LAN system are proposed. Specifically, a receiving STA receives a first management frame from a transmitting STA. The receiving STA transmits a second management frame to the transmitting STA. The receiving STA determines whether to perform channel access for a first non-primary channel based on the first management frame and the second management frame. The first management frame includes a first NPCA mode, which is information about whether the transmitting STA performs channel access for the first non-primary channel. The second management frame includes a second NPCA mode, which is information about whether the receiving STA performs channel access for the first non-primary channel.

The invention discloses a shopping mall data analysis system, which relates to the technical field of electronic commerce data processing, and comprises a data access and preprocessing module, a streaming batch integrated calculation engine, a dynamic mode recognition and prediction module, an intelligent decision support module and a visual interaction platform, high-throughput and low-delay data processing and dynamic mode recognition are realized through stream batch integrated calculation and an incremental learning mechanism, and the real-time performance, the adaptive ability and the decision-making efficiency of shopping mall data analysis are improved in combination with a multi-objective optimization and asynchronous rendering technology. The invention aims to solve the problems of insufficient real-time performance of data processing, high calculation delay and poor adaptability to dynamic user behaviors.

A satellite random access method based on decoupling reinforcement learning belongs to the technical field of communication, and comprises the following steps: constructing a multi-user uplink satellite random access transmission scene; establishing a code domain and power domain combined non-orthogonal multiple access random access transmission model; designing a random access strategy space of the codebook-power-time slot joint domain non-orthogonal multiple access random access transmission model, and performing decoupling dimension reduction on the strategy space; constructing an optimization problem with system throughput maximization as a target; according to the method, the optimal access strategy of each piece of user equipment is obtained through optimization solution, and the optimal random access scheme is designed according to the optimal access strategy of each piece of user equipment. Establishing a code domain and power domain combined non-orthogonal multiple access random access data packet detection model, and performing data packet detection; and establishing a code domain and power domain combined non-orthogonal multiple access random access method evaluation index and carrying out performance analysis. According to the invention, the system can continuously maintain high throughput after overload, and the system performance after overload is improved.

The application provides a method and system for resisting cooperative detection eavesdropping in a hidden safe network of a UAV, comprising: based on a UAV uplink communication network scene of multiple legal users and multiple cooperative illegal users, obtaining a maximum safe communication rate of each legal user in each time slot under cooperation eavesdropping of the multiple illegal users; based on a UAV uplink communication network scene of multiple legal users and multiple cooperative illegal users, obtaining a minimum detection error rate of communication behavior of each legal user under cooperation detection of the multiple illegal users; based on the maximum safe communication rate and the minimum detection error rate, establishing a joint optimization problem with the maximum system minimum safe throughput as a target, and setting a constraint condition; based on a continuous convex approximation algorithm, solving the joint optimization problem to obtain an optimized UAV trajectory, user transmission power and time slot segmentation scheme.