Self-adaptive Channel Select Scheme Based On The Rate Of Service For The Network With Relay

In recent years, the Internet of Things(IoT)based on the wireless local area network (WLAN) develops in full swing,the rapid development of information technology has also led to a boom in domestic research in other relevant areas.Among which the project with the core objective of achieving a wide range of high-density interconnect near field has been carried out in full swing,but in the high-density deployment scenario, the large number of nodes competing for limited channel resources will result in spectrum utilization fell, we need a rational resource allocation scheme to improve system performance. The IEEE 802.11ah working group hasbeen set up in 2012,aiming atthe IOT business transmission needs of a wide range of business-intensive users, the use of high-frequency bands below 1GHZ, in research of new WLAN key technologies and standards withLow-band,low-power, flexible networking.This paper aims atthe current research status ofresource allocation in a wide range ofdense deployment scenarios, puts forward resource allocation schemeapplies to the scene below 1GHZ,fills the research gapsin allocation of resources in this scenario. In this paper, the main researchworkare as follows:First, we research the development situation of resource allocation in a WLAN. and then start from the fact that intensive WLAN leads to the decrease of the system, lead to the impact of WLAN networking infrastructure mode on network resource allocation,and make performance analysis of distributed and centralized group network mode, state the performance advantages of centralized networking mode in detail;Then, under the centralized networking architecture model, the researchers analyze the existing shortcomings in performanceof traditional resource allocation scheme in the application,based on the draft 802.11ah protocol can support Relay function, proposingresource allocation scheme based on the cell-based business rateadaptive,through the dynamic channel bonding of available spectrum resources to achieve dynamic allocation of spectrum resources, in order to achieve adaptation to meet the cell traffic burst. With the performance simulationof the resource allocation scheme, making comparative analysis with traditional plan without channel configuration scheme, reflecting the advantages of the proposed resource allocation scheme.Finally, the paper build a Linux-based simulation demonstration platform, and use QT designed a complete man-machine interface, on network devicesbased on the 802.11g,we verify and test the channel allocation schemethe paper describesby the equivalent conversion,and verify the feasibility and effectiveness of the scheme.