Packet-aggregation-based selection cooperation method in multi-source multi-target network

Abstract

The invention, which belongs to the field of cooperative communication, relates to a packet-aggregation-based selection cooperation method in a multi-source multi-target network. For many multi-sourcemulti-target networks with M source nodes and N target nodes in a wireless sensor network, an association matrix among the source nodes is constructed and thus each multi-source multi-target networkis converted into N multi-source single-target networks, wherein the M is larger than the N; according to the characteristic of the small data packet in network node transmission, a packet aggregationstrategy is employed for data transmission of the N multi-source single-target networks and thus a packet-aggregation-based selection cooperation method put forward. According to the invention, on the basis of mutual cooperation and data packet aggregation between source nodes having the same target nodes, the reliability of the system is improved, the energy consumption of the system is reduced,and the spectrum utilization rate is increased. The packet-aggregation-based selection cooperation method has the great practical application value.

Description

Technical field [0001] The invention belongs to the field of cooperative communication, and relates to a method for selection and cooperation based on packet aggregation in a multi-source and multi-target network. Background technique [0002] Choosing cooperative communication as an important branch of single-relay cooperative technology has always been a research hotspot in the field of cooperative communication. The basic idea is to select an optimal relay to perform cooperative forwarding tasks without all relays participating in the cooperative transmission process. Therefore, it has the characteristics of high reliability and low complexity, and is very suitable for application in wireless sensor networks. At present, there have been some related researches on selection collaboration technology, mainly focusing on the derivation and analysis of selection collaboration performance and its application in different network scenarios, such as: single source single target networ...

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Problems solved by technology

[0003] However, the above studies are all aimed at specific network scenarios, and there is little research on the wireless sensor network with M source nodes and N target nodes (M>N) that widely exists in practice, and there is no research on the data packet in the wireless sensor network. Minor features for protocol design and optimization

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