Underwater sensor network MAC (media access control) protocol implementation method based on time-space fairness

An underwater sensor and protocol implementation technology, applied in network topology, transmission system, advanced technology, etc., can solve problems affecting network throughput, long handshake time, etc., and achieve the effects of shortening handshake time, prolonging life cycle, and low energy consumption
CN103312697AInactive Publication Date: 2013-09-18JIANGSU UNIV
2 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2013-09-18
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to an underwater sensor network data transmitting technology, and particularly provides a response-first-request underwater sensor network MAC (media access control) protocol (RFR-MAC) by aiming at spatial uncertainty caused by underwater sensor network underwater acoustic long propagation delay characteristics to realize time-space fairness. The method comprises the following steps of dynamically adjusting an RTS (request to send) competition stage to determine node priority transmitting data which is firstly requested to be sent in time, introducing a CTS (clear to send) delay stage to delay to send a CTS control frame, thereby avoiding conflicts of data frames, using a CTS backoff mechanism to prolong the CTS delay stage, and meanwhile, adopting a competition backoff mechanism to further improve the time-space fairness of competition channels. The experiment shows that the protocol has good time-space fairness, and meanwhile, the protocol has good throughout capacity, and lower energy consumption and time delay.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the underwater sensor network data transmission technology, and specifically aims at the time-space uncertainty caused by the underwater sensor network's long propagation delay characteristics of underwater sound, and proposes a response to the first request underwater sensor network MAC protocol (RFR-MAC). Achieving spatio-temporal fairness. Background technique

[0002] With the development of computer technology, microelectronics technology and communication technology, the related technologies of Underwater Wireless Sensor Networks (UWSNs) have also developed rapidly, and are widely used in marine data collection, pollution detection, marine detection, disaster early warning, aid navigation and strategic monitoring. In order to ensure the efficient transmission of underwater data, MAC (Media Access Control) protocol design is an important aspect of underwater sensor network research. It has a direct impact on underwater ne...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More