Introduction to WMN of network router Wireless Network

The wireless network WMN of the network router is introduced. Currently, traditional wireless access methods face problems such as insufficient access bandwidth and unsatisfactory service quality. In addition, there is a lack of unified planning for wireless spectrum resources and topology structures, it is difficult to adapt to flexible usage, while WMN provides a new way to solve the problems faced by wireless access networks.
I. The so-called WMN is also called a wireless mesh network. Currently, the WLAN used has two structures: center and self-organizing, which are P2MP and P2P respectively, the topology of WMN is a network structure, also known as multi-point to multi-point MP2MP. This network structure enables WMN to better solve some problems in traditional wireless access networks. Www.2cto.com
2. WLAN can provide a high communication rate and is suitable for Multimedia Data Access Services. In a centralized P2MP structure, due to limited access point coverage, in order to provide wireless access in a larger area, multiple APs need to be deployed, which leads to high costs. network connectivity depends on nodes with strong mobility, resulting in reduced network reliability, in addition, the performance requirements for gateway nodes are high, and the billing and management methods are not clear.
3. WMN consists of two types of network nodes: The Mesh router and the Mesh client. When WMN is used as the access network, the Mesh client is connected through other adjacent nodes, by wireless multi-hop access to the Internet, WMN has the following advantages:
1. Self-configuration: A single-hop or multi-hop connection is formed between nodes through an open wireless link to automatically complete networking. 2. Self-adjustment: nodes have multiple communication paths, the service can flexibly select the appropriate (such as the shortest path, least interference, and fastest speed) path for transmission; www.2cto.com
3. Self-healing: When a node suffers a fault or a link is congested, services in the network can bypass the corresponding node or link to improve network reliability. 4. Scalability: you can easily add or delete network nodes, adjust network coverage, and reduce system construction and management costs.
4. In addition, there are a variety of wireless access networks. Different wireless transmission technologies and standards are used to provide suitable applications. The core devices in the network are Mesh routers, A core network with a dynamic topology. The Mesh router is configured with a variety of wireless transmission standard interface devices to achieve the interconnection of Various wireless networks, including cellular network, WiMAX network, WLAN, Mobile Self-Organizing (Ad hoc) network, and wireless sensor network.
User Terminals using various wireless transmission technologies can connect to the core network through a wireless access network anytime and anywhere. The configuration and maintenance costs of WMN are more advantageous than those of traditional wired methods, it can be used as an implementation method for ubiquitous heterogeneous networks in the future.