Routing Protocol for swift WMN

The routing protocol of swift WMN is called WMN. It is a distributed network with high capacity and high speed. Different from the traditional wireless network, it can be regarded as a combination of WLAN and Ad Hoc networks, they have also taken advantage of both, as a new network structure that can solve the bottleneck problem. 1. Currently, the implemented WMN adopts the TBRPF-based routing protocol, the DSR-based routing protocol, the DSDV-based routing protocol, and the routing-based routing protocol. However, there are some fundamental differences between WMN and Ad hoc networks. The direct application of Ad hoc network routing protocols in WMN cannot optimize the performance of WMN. Www.2cto.com
2. WMN is a multi-hop Network with a dynamic topology. It is similar to Ad hoc networks. Therefore, most of the routing protocols used by WMN are derived from Ad hoc networks, ad hoc network routing protocols can be divided into geographical location-assisted routing and non-geographical location-assisted routing. The former requires the support of the GPS Positioning System, and the latter can be divided into plane routing protocol and hierarchical routing protocol. 3. Plane routing protocols include on-demand routing, such as on-demand distance vector protocol, Dynamic Source Routing Protocol (DSR), segment-by-segment routing protocol (SSR), and active routing, for example, the distance vector (DSDV) of the destination station number, the wireless routing protocol (WRP), and the topology broadcast based on reverse path forwarding. the hierarchical routing protocol includes the cluster head gateway exchange protocol (CGSR) and the regional routing protocol (ZRP.
Iv. Currently, the implemented WMN adopts the TBRPF-based routing protocol, the DSR-based routing protocol, the DSDV-based routing protocol, and the routing-based routing protocol. However, there are some fundamental differences between WMN and Ad hoc networks. 5. Routing Protocols for wireless access applications must be fully adapted to Mesh clients and Mesh routers, including user nodes with Strong Mobility and limited power consumption, and weak mobility, access nodes and gateway nodes with unlimited power consumption. Currently, most WMN routing protocols are designed to treat Mesh clients and Mesh routers equally without considering the differences between them, distinguishing two types of nodes to study routing protocols may become a noteworthy topic.
6. In network convergence applications, a wireless network composed of user nodes can be considered as an autonomous domain and can directly adopt the Internet routing concept, this only solves the Routing Problem of the wireless core network composed of Mesh routers. The four common Ad hoc network routing protocols are used to evaluate the performance of the Mesh core network. It compares the routing overhead, the packet transmission success rate, and the end-to-end latency. The results show that, because the WMN routing overhead is relatively small, in general, the on-demand routing protocol has better performance than the active routing protocol. However, due to the weakening of the mobility of WMN nodes, you need to increase the routing expiration time and the routing Cache Time of the on-demand routing protocol to avoid overhead increase when too many routing messages are exchanged. Www.2cto.com 7. Mesh routers are equipped with more than two Wireless Transceiver Devices in network convergence applications. The design of the routing protocol must consider the characteristics of multiple wireless transceiver and multi-channel; in wireless access applications, this is generally not considered. In view of the above problems, in view of the characteristics of the WMN network structure and application characteristics, based on the basis of the wireless self-organizing network technology, WMN routing technology can be studied to improve the WMN network performance.
VIII. Factors for designing the WMN Routing Protocol 1. Route Selection Based on the number of hops: the number of wireless links between the source node and the target node. Expected number of transmissions: the number of retransmissions due to a media access conflict, which is a common parameter in wireless communication. Expected transmission time: it is more common than ETX. It also takes into account the bandwidth characteristics of the channel. Round-trip transmission time: the time required for back-trip transmission between the source and destination nodes. Energy consumption: the total energy consumption caused by a certain transmission route. Route stability: This article describes how stable a route is and how long it can last.
2. The network size supported by www.2cto.com WMN is generally large, and the routing protocol must support more nodes. If you directly use the traditional Ad hoc network routing protocol, the routing search process may take too long and costly. 3. Fault tolerance when the client moves, wireless links are congested, or the router is faulty, You Can reselect the route. 4. The link interferes with the wireless signals sent from neighboring nodes. When selecting a route, select a link with a small amount of interference to increase the system capacity. 5. The cross-layer protocol design integrates some technologies of the physical layer, such as the Al antenna, multi-input, multi-output (MIMO), and link layer. The protocols at each layer are designed to work collaboratively and comprehensively.