Interaction method of MAC layer and network layer and dual core embedded system

Abstract

The invention provides an interaction method of an MAC layer and a network layer, which comprises a function of completing the network layer on an ARM, a function of completing the MAC layer on a DSP, and realization of message interaction of the network layer and the MAC layer by an interface message sent from the MAC layer to the network layer, an interface message sent from the network layer to the MAC layer, an MAC layer service primitive and a network layer service primitive, wherein the network layer function at least comprises routing and addressing; and the MAC layer function at least comprises access, queue scheduling and time slot reservation. After using a C++ simulation platform developed by Microsoft Visual Studio.Net on a Windows operating platform to test the data sending and receiving processes among nodes, the interaction method connects the DSP and the ARM to carry out combined test on the data interaction of the MAC layer and the network layer. The test result shows that the data interaction is normally completed.

Description

technical field [0001] The invention belongs to the field of wireless Mesh network communication, in particular to a MAC layer and network layer interaction method designed based on the IEEE802.16d protocol, and a dual-core embedded system. Background technique [0002] The wireless mesh network is composed of mesh routers (routers) and mesh clients (clients). The mesh routers constitute the backbone network and are connected to the wired internet network. They are responsible for providing multi-hop wireless internet connections for the mesh clients. Wireless Mesh network (wireless mesh network), also known as "multi-hop" network, is a new type of wireless network technology completely different from traditional wireless networks. [0003] In a wireless Mesh network, any wireless device node can act as an AP and a router at the same time, each node in the network can send and receive signals, and each node can communicate directly with one or more peer nodes. The biggest a...

AI Technical Summary

Problems solved by technology

[0005]The IEEE 802.16d protocol specifies the air interface of the MAC layer and the physical layer of the wireless metropolitan area network in detail, but the protocol only provides the data from the perspective of the MAC layer The processing framework and process of the MAC layer do not consider the interaction with the network layer from a global perspective, which leaves room for research by protocol developers

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