109results about How to "Taking into account fairness" patented technology

The invention discloses a multi-beam ad hoc network channel access control method, aiming at providing an access control method which has a high channel utilization rate and can improve the network performance. The method of the invention is implemented through the following technical scheme: for a distributed multi-beam scene, combining the characteristics of multi-beams, utilizing the broadcastchannel characteristics of an omni-directional network and the high bandwidth and high directivity characteristics of a directional network, using the short message protocol interaction between nodes,and assisting to complete the high-rate parallel transmission of multiple nodes on a directional link; using space division multiplexing among the nodes to achieve the concurrent communication between multiple transmission nodes and multiple receiving nodes; when a network cluster head node receives RTS frames of all other nodes, running a multi-beam ad hoc network channel access allocation algorithm; and searching an optimal transceiving node pair set in each time slot, finding an edge set with the maximum network capacity as a channel access allocation result of each node in the next directional link time slot, and further implementing the simultaneous multi-transmission and multi-reception of the multiple nodes at the same frequency.

The invention discloses network nodes and a data transmission method and system. Information maintaining and updating mechanisms are formulated for the network nodes based on the DTN characteristic so that each network node can work out the topological structure of the network at any time, and support is provided for subsequent routing selecting. A data forwarding scheduling strategy of the network nodes is formulated according to the data priority and the queue waiting time based on the fairness principle. On the basis, according to the data transmission method, the data queue situation of the current nodes and the link bandwidth between the nodes are comprehensively taken into consideration in a source node, the next jumping node is worked out and obtained based on the real-time state of the current network to achieve data transmission, and the next jumping node is located on the optimal path of the current network. The high real-time performance and fairness of data transmission are taken into account, the average delay of the network is shortened, and the purpose of the high success rate and low delay data transmission in the DTN with the limited transmission bandwidth and node capacity is achieved.

The invention relates to the communication field and discloses a wireless resource scheduling method, a wireless resource scheduler and a system thereof. The method comprises the following steps that whether current actual service quality of each service is equal to or less than a lower limit of preset service quality corresponding to each service respectively is compared so that whether there is an urgent service is determined; if there is the urgent service, the current schedulable urgent service is determined according to channel quality of each urgent service and a resource block is distributed for the current schedulable urgent service respectively according to a sequence from a high scheduling priority to a low scheduling priority; otherwise, according to the channel quality of the service in each resource block, the scheduling priority of each service in each resource block is determined; according to the sequence from the high scheduling priority to the low scheduling priority, the resource blocks are distributed to the services respectively. By using the technical method, QoS guarantee of an equilibrium service and maximization of a resource utilization rate are achieved; user application feeling and a network resource utilization rate are increased.

The invention discloses a virtual CPU scheduling method capable of enhancing real-time performance. The virtual CPU scheduling method comprises the following steps: a virtual machine management control tool accepts a command that a user operates a virtual machine and schedule parameters; the management control tool judges whether a user command is related with a real-time virtual machine, conditions for meeting schedulability of the real-time virtual machine are calculated if the user command is related with the real-time virtual machine, and physical CPU resources are dynamically partitioned according to the calculation result; scheduling is carried out by adopting the virtual CPU scheduling method capable of enhancing real-time performance, a global earliest deadline priority scheduling algorithm is applied to a CPU resource pool operating the real-time virtual machine, and a limit scheduling algorithm is applied to a CPU resource pool operating a non-real time virtual machine; optimization of virtual CPU caching and hitting is conducted on the global earliest deadline priority scheduling algorithm. According to the virtual CPU scheduling method capable of enhancing real-time performance, real-time performance of the real-time virtual machine is guaranteed, a good isolation property is provided for partitioning the CPU recourses, and influence on performance of the non-real time virtual machine is reduced.

The invention discloses a scheduling method based on CQI (channel quality indicator) feedback parameter and SINR (signal to interference plus noise ratio) numerical grouping. The scheduling method includes: a base station calculating SINR numbers of all users in a cell; setting an SINR threshold value, distinguishing users not smaller than the SINR threshold value as a cell central user group I, dividing users smaller than the SINR threshold value as a cell edge user group II, and distributing a total resource block in the cell to the cell central user group I and the cell edge user group II for scheduling; and within a time window, sequentially distributing corresponding resource blocks to the users in each group according to a CQI system by the base station, and respectively scheduling the cell central user group I and the cell edge user group II by a PF (proportional fair) scheduling method and an RR (round robin) scheduling method. By constructing an LTE (long term evolution) system simulation model, the method and the PF method are subjected to simulation comparison, and according to the simulation result, throughput of the cell and fairness among the users are increased to a certain extent by the method compared with the PF method.

The invention discloses a multi-service channel resource managing method suitable for the satellite network. The game theory and the price theory are game theories to study interaction and mutual equilibrium among a plurality of subjects of decision-making to maximize earnings or utility based on information analyzing and capacity judging. Therefore, the game theory and the price theory are utilized for solving the problem of resource sharing in a communication system to enable resource utilization to be more equitable. According to strategy, specific application sites are taken into consideration, priority is determined by distinguishing vip users and ordinary consumers and different services of the same users when a plurality of users arrive at the specific application sites, and channel resource management is achieved. The resource using fairness among different service types is achieved through the game theory and the price theory, and overall satisfaction of the users is improved. The resource utilization rate is improved by dynamically adjusting the lifting level.

The invention relates to a visible light/radio frequency hybrid cooperative communication method based on wireless energy harvesting and non-orthogonal multiple access, applied to a user cooperative communication system of visible light/radio frequency communication. The system comprises an LED light source and a user group, users in an area closer to the LED light source are near users; and otherusers in the user group are remote users. The method comprises the following steps; (1) within a first stage T time, the near users convert light signals emitted by the LED light source into electricenergy for storage; within a second stage 1-T time, the near users receive the light signals emitted by the LED light source, demodulate the light signals emitted by the LED light source, and demodulate information of the near users and the information of the remote users; and (2) the near users send the demodulated information of the remote users to the remote users through radio frequency signals by using the stored electric energy. In the communication method provided by the invention, the energy consumption problem of the user equipment is also considered, and an energy harvesting moduleis added, thereby being green and environmental friendly.

The invention discloses an SLNR (signal-to-leakage-and-noise ratio) beam forming based user need considered power distribution method, and belongs to the technical field of beam forming in a wireless communication system. The problems of low fairness among different users and low satisfaction corresponding to each user when system performance is improved by an existing beam forming method are solved. The method includes: acquiring a feasible initial power value through an initial point selection algorithm; solving an approximate convex optimization problem of an established power optimization problem, and acquiring power distribution values of the users; acquiring a temporary optimum power distribution value; updating an SLNR beam forming method to obtain a corresponding beam forming matrix, and acquiring an optimum power distribution result. Or, an expression of a corresponding power distribution matrix when the SLNR received by a user side is in minimum need is obtained by adopting suboptimization and utilizing an expression of the SLNR and matrix transformation, and a power distribution value is acquired so as to obtain a final power distribution result. System performance, fairness among the different users and the satisfaction corresponding to each user achieve best compromise.

The invention discloses a computing task unloading balancing method and system between network nodes, a medium and equipment. The method comprises the following steps: acquiring own processing performance data from Ntotal fog nodes around a terminal node; the terminal node calculating scheduling priority information of all Ntotal alternative fog nodes by using a preset logic according to the processing performance data of the fog nodes; the terminal node selecting N fog nodes from the Ntotal fog nodes as unloading target nodes of the terminal node calculation task according to the fog node priority information; the terminal node calculating logic calculation task allocation information according to a preset task amount, dividing a calculation task into N + 1 sub-tasks according to the taskallocation information, and sending the N + 1 sub-tasks to the selected N fog nodes and the terminal node for calculation; and the fog node updating own processing performance data according to the real-time performance information in the calculation process and transmitting the updated processing performance data to the terminal node. The technical problems that fog node calculation unloading isuneven, and delay of calculation tasks and fairness of energy consumption between fog nodes cannot be considered at the same time are solved.

The invention is applicable to the technical field of communications, and provides a processor scheduling method and system. The method comprises the steps of receiving a thread priority or time slice modification instruction; modifying the priority or time slice of a thread and acquiring a thread with the highest priority in the ready state; and when a thread under a running state currently exits a kernel exclusive area, executing the thread with the highest priority in the ready state in a processor according to the length of the time slice. The processor scheduling method provided by the invention combines a priority enforcement mechanism and a round-robin mechanism; a priority preemption mechanism is adopted between threads of different priorities, and the round-robin mechanism is adopted between threads of the same priority; since a scheduling mechanism is based on threads, switching between threads consumes a very small amount of resources, therefore, the switching efficiency of occupying a CPU between threads of different priorities and the same priority is improved, the fairness of occupying processor resources between the threads is considered, and the system real-time performance is high.

The invention discloses a frequency domain resource distribution method based on graph coloring in an ultra-dense network. The frequency domain resource distribution method comprises the following steps: reflecting a disturbed condition between small stations by utilizing a disturbance relationship graph; and coloring the disturbance relationship graph by utilizing a multiplexing algorithm based on a conventional graph coloring Brelaz algorithm, and distributing sub-band for each user according to the coloring results, thereby achieving a purpose of reducing the disturbance between the small stations. The method disclosed by the invention can be used for remarkably reducing the disturbance between the small stations, so that the total throughput and edge throughput of the system are increased.

This invention discloses one method to send integral wireless communication system to media flow, which in aligning wide band aim for different media flow and comprises the following steps: according to preset group priority or business priority aligning; then sending media flow on aligned wide band; through considering different set or business priority to realize proper aligning between set group and business signal channel wide band to meet wide band Quos requires.

The invention discloses a resource scheduling method and a resource scheduling device and solves the problem that system throughput and fairness cannot be taken into consideration at the same time in the prior art. The method comprises: when at least two user terminals exist currently, selecting a current scheduling algorithm according to the user channel condition information of the user terminals to be scheduled; and scheduling the user terminals to be scheduled by using the current scheduling algorithm. Therefore, in the scheduling policy used in the embodiment of the invention, different scheduling algorithms are selected according to a current user channel condition and the priority of the user terminals changes with the current user channel condition, so the system throughput can beimproved while the fairness is taken into consideration.

The invention relates to a heuristic D2D resource allocation method based on the proportional-fair algorithm. The method comprises the steps of calculating the priorities of N D2D pairs in multiplexing different cellular user channels; on the premise that the SINR threshold constraint conditions of cellular users and D2D pairs are ensured, ranking the above priorities from high to low, selecting one D2D pair for each resource block according to the ranked sequence of the priorities by a scheduler, and judging whether the data rate requirement of the D2D pairs is met or not; if the data rate requirement of the D2D pairs is met, reducing the priority of the D2D pair, and preferentially allocating a resource block for each unsatisfied D2D pair. According to the technical scheme of the invention, the requirements of D2D pairs on data rate are ensured, and both the fairness and the system performance are considered at the same time.

Disclosed is a maximum power consumption control method for a high-performance heterogeneous parallel computer. The method includes that a system-level power consumption controller distributes total power consumption to multiple heterogeneous processing engines HPE in concurrent execution according to contribution of different application programs to overall system efficiency and executive efficiency of each concurrent job under the condition of given system power consumption restraint; and an HPE power consumption controller adopts an application-aware power consumption strategy to distribute power pHPE to heterogeneous processors in the HPEs by means of coordinate parallel task dividing and processor frequency adjusting. The maximum power consumption control method for the high-performance heterogeneous parallel computer has the advantages of simple principle, simplicity and convenience in operation, capability of optimizing executing performance of a parallel system, shortening task executing time and improving operating efficiency of the system, and the like.

The invention discloses a selection method of multi-antenna relay nodes in a cooperation communication system. The selection method comprises the following steps: establishing an SNR (signal to noise ratio) normalization function and a channel load normalization function; mapping the SNR and the channel load of a signal to the SNR normalization function and the channel load normalization function respectively; and determining the relay selection algorithm according to the SNR normalization function and the channel load normalization function. According to the selection method, in the process of selecting the relay nodes, not only the factor of the SNR of a link is taken into consideration, but also the problem of equal utilization of relay resources is given consideration; and meanwhile, for a fixed multi-antenna relay base station, antenna selection and the relay selection of the relay base station are effectively combined. The selection method helps to reduce the error rate of the cooperation communication system, and meanwhile, the fairness of the utilization of the relay resources is taken into consideration; the algorithm is simple and practical; the performance is excellent; and the algorithm has realistic meaning for the application and operation of the cooperation communication system.

The application provides a method and device for adjusting scheduling priorities and a base station. The method comprises: when UE is determined to be in a mobile state and a large packet service feature is met, a regional selective scheduling function is started for the UE, wherein the regional selective scheduling function is characterized in that when the UE is determined to be located in a region meeting a first condition, a scheduling priority of the UE is increased and the scheduling priority of the UE is reduced when the UE is determined to be located in a region meeting a second condition, and the region meeting the first condition expresses a region with the high channel quality and the region meeting the second condition expresses a region with the low channel quality; and a region in which the UE is located currently is determined and the scheduling priority of the UE is adjusted based on the regional selective scheduling function. According to the application, when the UE is located in the region with the high signal quality, the scheduling priority is increased and thus the transmission rate of radio resources is increased; and when the UE is located in the region withthe low signal quality, the scheduling priority is reduced and the multi-user fairness of the system is considered.

The invention discloses an adaptive coding modulation scheme and resource scheduling method based on a sparse code multiple access (SCMA) system, and relates to an adaptive coding modulation scheme and resource scheduling method. The adaptive coding modulation scheme and resource scheduling method based on the SCMA system is brought forward for solving the problem of incapability of realizing optimal distribution of system resources in case of multiple users due to difficult balance between system throughput and transmission link quality, caused by incapability of dynamically selecting a proper coding modulation scheme according to change of a channel condition by use of an SCMA system with a fixed modulation coding mode. The method is realized by the following steps: 1, establishing a system model; 2, constructing a pair of 4-point SCMA codebooks, a pair of 8-point SCMA codebooks and a pair of 16-point SCMA codebooks; 3, performing optimal distribution of system resources in case of multiple users; 4, performing resource scheduling on users after adaptive modulation and coding, and the like. The method provided by the invention is applied to the field of adaptive coding modulation scheme and resource scheduling.

The invention relates to a small base station user resource allocation method based on dynamic clustering of small base stations in a super-dense network. The method comprises the steps of: accordingto the distance from the small base stations to cluster heads, allocating the small base stations into a cluster, where a closer cluster head is; according to the relationship of the clustering numberand the number of the small base stations and limitation by a clustering scheme input parameter, combining or splitting clustering results; modelling and resolving a resource allocation problem, andproviding an initial resource allocation scheme of small base station users according to key parameters in an optimal solution; and, performing compensation allocation for users, who do not have an optimal resource block. According to the method disclosed by the invention, on the premise that the system instruction overhead and the in-layer interference are reduced, dynamic clustering on the smallbase stations is carried out; inter-cluster reuse of resources is carried out; and thus, the user fairness is compatible while the system capacity and the system spectral efficiency are increased.

The invention discloses a method for controlling overload of sector users in a communication system, which comprises the following steps: finding users capable of being used for release under sectors according to a preset index, and listing the users into a user congregation; and selecting a user in the user congregation for release. The method for controlling the overload of the sector users in the communication system selects users to be released through three indexes of user vacancy session-timeout, user connection session-timeout and user forward throughput, ensures that when a new user accesses the communication system, the utilization rate of the communication system is improved simultaneously, and takes the performance of the system and the user access equity into consideration.