Low-delay balanced energy consumption routing method for wireless sensing network

Abstract

The invention relates to a low-delay balanced energy consumption routing method for a wireless sensing network, which comprises the following steps of: initializing the network and establishing a respective depth weight and a neighbor table for each node, wherein the depth weight is equal to a nodal distance and is proportional to the shortest hop count of a sink node; dividing packets to be transmitted into two types of delay sensitive packets and non delay sensitive packets and carrying out division at frame headers by zone bits; when data is to be transmitted at a certain node, broadcasting a routing request frame added with a certain packet type, waiting to receive a routing response frame of a neighbor node and after receiving the routing response frame, selecting different routing algorithms according to different packet types to select a next hop of node; if the packet type is the delay sensitive packet type, preferably selecting the node with the minimum delay weight to carry out forwarding; and if the packet type is the non delay sensitive packet type, preferably selecting the node with the minimum balance weight to carry out forwarding. According to the invention, the time delay is reduced and the energy consumption is more balanced.

Description

technical field [0001] The invention relates to the technical field of routing selection of a wireless sensor network, in particular to a routing method for a wireless sensor network with low delay and balanced energy consumption. Background technique [0002] Advances in sensor technology, micro-electromechanical systems, modern networks and wireless communications have promoted the emergence and development of modern wireless sensor networks. Wireless sensor network involves many disciplines and has become one of the research hotspots in the field of IT. It expands people's ability to obtain information, connects the physical information of the objective world with the transmission network, and provides people with the most direct, true and effective information in the next generation Internet. The wireless sensor network has a very broad application prospect, and can be used in many fields such as military defense, environmental monitoring, emergency rescue, industrial a...

AI Technical Summary

Problems solved by technology

At this time, it is no longer suitable to forward data based on the principle of giving priority to energy consumption. Instead, the delay during data transmission should be reduced as much as possible, and the fastest path should be selected for forwarding. Fast path forwarding will definitely cause some nodes on a certain path to fail due to excessive energy consumption in the long run, and the overall energy consumption of the network will be extremely unbalanced, resulting in the unavailability of a certain transmission link or the consequences of isolated island nodes

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