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Method and system for routing potential energy field supporting real-time transmission in wireless sensor network

A wireless sensor and real-time transmission technology, applied in wireless communication, network traffic/resource management, energy consumption reduction, etc., can solve problems such as unsatisfactory real-time transmission and increased packet transmission delay, so as to improve throughput and alleviate congestion Effect

Inactive Publication Date: 2011-05-25
TSINGHUA UNIV
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Problems solved by technology

Since TADR does not identify the specific attributes of packets, it may also buffer delay-sensitive data packets to the bypass when congestion occurs, thereby increasing the transmission delay of packets and failing to meet the requirements of real-time transmission.

Method used

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  • Method and system for routing potential energy field supporting real-time transmission in wireless sensor network
  • Method and system for routing potential energy field supporting real-time transmission in wireless sensor network
  • Method and system for routing potential energy field supporting real-time transmission in wireless sensor network

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Embodiment Construction

[0042] The potential energy field routing method and system supporting real-time transmission in the wireless sensor network proposed by the present invention are described as follows in conjunction with the accompanying drawings and embodiments.

[0043] In order to provide transmission services for real-time applications, the present invention refers to the concept of potential field (potential field) in physics, builds a virtual hybrid potential field for WSN, and thus provides a real-time service based on potential field Transmission routing strategy (PRTR), which will always ensure that delay-sensitive packets are transmitted on the shortest path, and other packets will be distributed to other idle paths for transmission (or cached for subsequent transmission). In this way, the end-to-end delay of real-time packets is minimized, and the possible congestion of the network can be alleviated at the same time, improving the throughput of the entire network.

[0044] Firstly, ...

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Abstract

The invention discloses a method and system for rounting a potential energy field supporting real-time transmission in a wireless sensor network. The method comprises the following steps: S1. caching data packets sent due to the requests of an application program; S2. analyzing header identifications of the data packets; if the data packets are real-time data packets, transmitting the data packets by using a deep potential energy field, otherwise, transmitting the data packets to a link layer for processing through a mixed potential energy field. By utilizing the method and the system, the minimized end-to-end transmission delay can be provided for real-time traffic of the wireless sensor network, and the jamming which may occur in the network can be alleviated simultaneously, thus the throughput capacity of the network is improved.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a flow chart and a system of a potential energy field routing method supporting real-time transmission in a wireless sensor network. Background technique [0002] With the rapid development of Wireless Sensor Network (WSN), a variety of applications have also been deployed in the sensor network. Among them, real-time applications requiring real-time guarantees need corresponding routing policies to provide support, so that data packets from these applications can obtain the minimum end-to-end transmission delay. [0003] So far, there have been many solutions for providing real-time transmission services in WSN, such as RAP, Implicit EDF and SPEED. SPEED is a routing mechanism that provides real-time services. It tries to provide soft real-time guarantees by maintaining a specified transmission speed for each data packet in the entire network. MMSPEED extends S...

Claims

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Application Information

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IPC IPC(8): H04W28/14H04W40/02H04W40/24
CPCY02D30/70
Inventor 任丰原徐寅生何滔
Owner TSINGHUA UNIV
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