A kind of channel resource allocation method in high-density wireless network

Abstract

The present invention relates to the field of wireless network communication, in particular, to a channel resource allocation method in a high-density wireless network; the method divides a channel into multiple sub-channels, namely resource units; and divides the channel into multiple stages, including uplink Random access stage and uplink resource allocation stage; in the uplink random access stage, the present invention reduces the number of competing sites in the network, that is, reduces the network density to reduce conflicts, and adjusts the optimal RU throughput by maximizing the uplink random access process. Compete for window values ​​to improve MAC efficiency. In the stage of uplink resource allocation, by constructing the largest independent set, the efficiency of uplink resource allocation is greatly improved, so that as many D2D link pairs as possible can reuse RU resources, and the channel resource reuse rate is greatly improved. During the uplink data transmission phase, the station and the D2D link pair can implement conflict-free data transmission on their allocated RU resources, thereby improving channel utilization and system throughput.

Description

technical field [0001] The present invention relates to the field of wireless network communications, and in particular, to a method for channel resource allocation in a high-density wireless network. Background technique [0002] Nowadays, wireless communication technology has penetrated into all aspects of people's life and work, playing an increasingly important role. With the rapid development of wireless communication technology, wireless local area network has been widely used in residential, commercial and public services and other fields. Therefore, how to use new technologies to reduce network load, improve channel utilization, and reduce power consumption of user terminals has become the main challenge faced by wireless networks. More recently, the concept of D2D communication has emerged as a potential solution to the spectral efficiency problem in 5G. Thus, two users in close proximity can communicate directly in a simple and fast manner without relying on netw...

AI Technical Summary

Problems solved by technology

However, due to the traditional random access mechanism, conflicts in the network are inevitable

Especially in high-density networks, a large number of stations competing for the channel will lead to higher collisions, which will significantly reduce network performance

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