4 results about "Aodv routing protocol" patented technology

The invention relates to an AODV routing protocol method, in particular to an AODV routing protocol method based on joint optimization of a three-dimensional weight hop count penalty mechanism. The invention aims to solve the problem that a single path selection standard neglects node residual energy, link quality and topology stability. The method comprises the following steps: based on position weight calculation of inter-node distance dynamic attenuation, suppressing a long-distance low-quality link; an energy weight is constructed by multiplying the ratio of the residual energy and the initial energy, and network load balancing is optimized; a movement weight in a speed difference square root reciprocal form is introduced, and a link life cycle is predicted; and a hop number punishment mechanism is newly added, so that nonlinear adjustment of multi-hop path quality is realized. And intelligent optimization of comprehensive score of the path is realized by combining a request message RREQ of an improved AODV routing protocol through normalization constraint and a hop punishment mechanism of a three-dimensional coefficient. The invention belongs to the technical field of wireless ad hoc networks.

This invention discloses a cross-layer communication method for emergency self-organizing networks based on TPUNB and WIFI, integrating broadband and narrowband technologies. This method constructs a heterogeneous broadband-narrowband converged architecture combining a WIFI star topology and a TPUNB-Mesh topology. It achieves virtual coordinate acquisition and dynamic updates for terminals through dual aggregation nodes. Based on a five-layer architecture, a protocol stack is designed to implement private data encapsulation at the application layer, a network layer AODV routing protocol construction using a greedy search algorithm based on anchor node virtual coordinates, collision backoff control at the data link layer, and fast ack radio frequency driver optimization at the physical layer. Cross-layer collaboration enables data encapsulation, transmission, and parsing. This invention improves the transmission efficiency and reliability of emergency communication networks, reduces congestion and data collision probabilities, adapts to emergency scenarios with randomly distributed nodes and low-speed movement, and solves problems such as low transmission rates, poor routing protocol adaptability, and congestion due to the lack of broadband-narrowband convergence in existing emergency communication systems.

The invention discloses an algorithm for optimizing routing by utilizing link prediction and route reconstruction in a mobile ad hoc network, aiming at solving the problems of delay, overlarge overhead, excessive number of failed routes and the like caused by continuous node movement, frequent link disconnection and continuous route reconstruction in a mobile Ad Hoc network AODV routing protocol. The invention provides an algorithm for optimizing a routing by utilizing link prediction and routing reconstruction in a mobile Ad Hoc network. According to the algorithm, a link state prediction mechanism is introduced, and the Newton mean difference interpolation polynomial is used for predicting the link disconnection time, so that the local route repair algorithm is started before the route fails, the route reconstruction is realized, and the algorithm has better performance in the aspects of route overhead, end-to-end delay, packet delivery rate and the like.

The invention provides an unmanned aerial vehicle cooperative networking method based on a self-organizing network, a storage medium and electronic equipment, and relates to the field of wireless communication, and the method comprises the steps: carrying a wireless network card for each unmanned aerial vehicle, distributing a unique node number for each unmanned aerial vehicle, and constructing an initialized network architecture; selecting a center node and a cluster head node according to the geographic position of the unmanned aerial vehicle; an Ad-Hoc ad hoc network is adopted between cluster head nodes, an on-demand routing table is constructed by adopting an AODV routing protocol, SoftAP mode communication is adopted between the in-cluster nodes and the cluster heads, and finally a two-stage clustering network is constructed; and when a node is added into or quits from the cluster, the cluster head node maintains a routing table in the cluster, and the central node maintains global routing information and issues the global routing information to each cluster head node. Based on the unmanned aerial vehicle platform, communication between the nodes is realized by carrying the wireless network card, the establishment and maintenance of the network are realized by combining the position and state of the unmanned aerial vehicle, and end-to-end data transmission and information interaction between the nodes in the network are realized.