Resource allocation method and device for a fog wireless access network

Abstract

The invention discloses a resource allocation method for a fog wireless access network. The method comprises the following steps of: firstly, determining the signal intensity of user equipment (FUE) of an access fog access node (F-AP) to be allocated when requesting to access different F-APs; and then calculating access factors from different F-APs to each FUE, and selecting the most appropriate F-AP for each FUE to access according to the size of the access factors and the limitation of the number of F-AP serviceable users; and enabling each F-AP to determine a deployment priority order according to the signal strength and the access factor when each FUE requests the file. When the resources are limited and all requested FUEs cannot be allocated; adopting non-orthogonal multiple access (NOMA) technology to serve unallocated FUEs. How the unallocated FUEs and the allocated user equipment (RUE) accessing the remote radio unit (RRH) are paired to complete channel multiplexing is determined, and the FUEs under the same F-AP adopt the same resource block but are configured with different appropriate powers to send. By applying the invention, the spectrum efficiency of the cell can be further improved, the average allocation time is saved, and more UEs are supported to be served at the same time.

Description

technical field [0001] The present application relates to fog wireless access network technology, and in particular to a resource allocation method and device for fog wireless access network. Background technique [0002] At present, the scheduling method of the radio access network (RAN, Radio Access Network) includes: calculating the priority of each user equipment (UE, User Equipment) according to the scheduling algorithm, and then sorting the UEs according to the priority of each UE to implement the user Scheduling and resource allocation. [0003] At present, Fog Radio Access Network (F-RAN), as a form of emerging radio access network, has been widely concerned. In particular, the F-RAN can process user profile requests in the access network. The system block diagram of the specific fog wireless access network is as follows: figure 1 shown. In the fog wireless access network, the traditional RRH evolves into a fog wireless access node (F-AP) by combining edge storag...

AI Technical Summary

Problems solved by technology

However, the limitation of channel multiplexing on throughput improvement and the separation of mode selection and resource allocation make the network system performance improvement not significant

Therefore, the calculation of the priority in the above resource allocation method involves the channel conditions of each UE, the influence of parameter adjustments such as historical channel state information (CSI, Channel State Information) and service attributes, and does not take into account the limited resources and F- Utilization of Storage, Computing and Processing Capabilities of Fog Wireless Access Points (F-AP) in RAN

At the same time, the resource allocation method above is performed after the mode selection is determined, and cannot maximize resource utilization, that is, it cannot be changed after one-to-one correspondence between users and resources. resources will be wasted

Therefore, the existing resource allocation methods cannot adaptively make corresponding adjustments according to changes in the network environment, and cannot maximize the energy efficiency of the system.

Therefore, the resource allocation technology in the prior art cannot guarantee the transmission rate of the user UE, especially for the situation when limited resources serve multiple users, it is impossible to improve the user service rate, system energy efficiency and guarantee user service quality (QoS, Quality of Service) and the balance of user fairness (Fairness) does not decline

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