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Low Power Distributed Medium Access Control Method Based on TDMA

A medium access control and distributed technology, applied in the field of communication, can solve problems such as reducing the success rate of data output, not suitable for mobility, and reducing control information, so as to improve accuracy, increase the success rate of data transmission, and overcome data loss Effect

Active Publication Date: 2021-04-27
XIDIAN UNIV
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Problems solved by technology

In terms of time slot allocation and selection, the TRAMA protocol chooses a distributed election algorithm, which reduces the transmission of control information and avoids conflicts. However, it is suitable for non-mobility or low mobility scenarios and is not very Suitable for networks with high mobility, otherwise it will reduce the success rate of data output and increase power consumption

Method used

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  • Low Power Distributed Medium Access Control Method Based on TDMA
  • Low Power Distributed Medium Access Control Method Based on TDMA
  • Low Power Distributed Medium Access Control Method Based on TDMA

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Embodiment Construction

[0044] The implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0045] refer to figure 1 , the specific implementation of this example is as follows:

[0046] Step 1. Determine whether there is a known network:

[0047] The known network indicates that there are nodes that have already built the network, and the control information transmitted by the network node is figure 2 Defined sets of control frames and scheduling frames. In order to avoid link conflicts caused by two networks in the same space, a new node needs to know whether there is a known network when it is powered on. The judgment is as follows:

[0048] Judging whether the collective control frame is detected within the maximum period duration: if yes, then select the access time slot and temporary superior node during the access period according to the collective control frame, and record the synchronization level of the control fr...

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Abstract

The invention discloses a low-power distributed medium access control method based on TDMA, which mainly solves the problem of excessive energy consumption in the existing mobile ad-hoc network, and its implementation scheme is based on the scheduling of time slots and the statistics of the amount of transmitted data Realize by comparison: when no node is connected to the network, only one available network access time slot is reserved for listening, and when the node is detected to be connected to the network, the number of available network access time slots is increased for listening; when the node has a remaining time slot , allocate the remaining time slots of the node according to the actual time slot requirements of the adjacent nodes, and dynamically adjust the next time slot allocation result; length to reduce the frequency of node cycle startup and increase the dormancy period. The invention reduces the power consumption when the network is running, and can accurately allocate the remaining time slots of the nodes themselves according to the requirements of the neighboring nodes, and can be used in small-scale, low-flow mobile communication networks.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a low-power distributed medium access control method, which can be used in small-scale and low-flow mobile communication networks. Background technique [0002] The current low-power self-organizing network MAC protocol mainly focuses on contention-based protocols and scheduling-based protocols. The scheduling-based protocols are mainly TDMA-based protocols. Compared with the contention-based protocol, the scheduling-based protocol has the advantage of no conflict and no collision, which is a current research hotspot. However, the scheduling-based protocol will generate additional control overhead, which deserves attention. In addition, comparing these protocols, no matter from node access and traffic adaptive link allocation, or from the aspects of fairness of data transmission and sleep cycle, there is room for improvement. Therefore, a more energy-efficient MAC pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W72/08H04W74/08H04W72/54
CPCY02D30/70
Inventor 史琰杨志明盛敏仲伟慧宋文强刘俊宇
Owner XIDIAN UNIV
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