A method for adaptively selecting time-frequency blocks of a multi-channel ad hoc network

A self-organizing network and self-adaptive selection technology, applied in transmission path sub-channel allocation, wireless communication, multiple use of transmission path, etc. The effect of improving resource utilization and improving network throughput

Active Publication Date: 2018-12-14
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because it does not consider the impact on the shared capacity of the network, it is a typical greedy method only based on the interests of the communication node, especially when the network load is congested, it has poor fairness and overall network throughput.

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  • A method for adaptively selecting time-frequency blocks of a multi-channel ad hoc network
  • A method for adaptively selecting time-frequency blocks of a multi-channel ad hoc network
  • A method for adaptively selecting time-frequency blocks of a multi-channel ad hoc network

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Embodiment Construction

[0027] see figure 1 . A multi-channel ad hoc network has two or more communicating nodes, such as Figure 7 , Figure 8 In the communication nodes A, B, C, D, E, and F shown, each communication node communicates with each other through multiple channels connected interactively, and each communication node includes three series of information source units, network protocol processing units and wireless transmission units. A functional unit, the network protocol processing unit includes a serial queue buffer unit, a dynamic resource allocation unit and a channel access control unit, wherein the queue buffer unit includes a unicast buffer queue 1, a unicast buffer queue 2, ... a unicast buffer queue W Multiple buffer queues such as broadcast cache queues; the dynamic resource allocation unit includes a series-connected available time-frequency block sensing unit and time-frequency block selection unit; the wireless transmission unit includes a wireless sending unit for wireless...

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Abstract

The invention discloses a method for adaptively selecting time-frequency blocks of a multi-channel self-organizing network, which aims at providing a method for adaptively selecting time-frequency blocks of a multi-channel self-organizing network with good self-adaptability by considering the transmission requirements of a unicast queue and a broadcast queue. The method is suitable for the multi-channel self-organizing network. The invention is realized by the following technical scheme: The multi-channel Ad Hoc network adopts the access mode of time-frequency two-dimensional resources, divides time into several time slots in time domain, divides frequency points into several mutually orthogonal channels in frequency domain, regards each grid as a time-frequency block, and takes time-frequency block as the minimum allocation resource unit in the multi-channel Ad Hoc network; The time-frequency block selection unit automatically selects the most suitable time-frequency block. Accordingto the available time-frequency block information transmitted by the available time-frequency block sensing unit, the transmission capacity requirement is calculated and one or more time-frequency blocks are selected from the available time-frequency block set for transmission to the channel access control unit, and the time and frequency information contained in the selected time-frequency blockis transmitted to the radio transmission unit.

Description

technical field [0001] The invention relates to a time-frequency block self-adaptive selection method suitable for multi-channel ad hoc networks. Background technique [0002] Self-organizing network (Ad Hoc) is composed of a group of communication nodes with dynamic networking capability that does not require any infrastructure, and adapts to the requirements for network and equipment mobility. Compared with other communication networks, in order to improve the invulnerability and reliability of the network and the efficiency of resource utilization, the Ad Hoc network has limited bandwidth, easy link changes, mobility of communication nodes and the resulting network topology. Dynamic, limited physical security, limited by equipment, etc., are widely used in military applications, mobile conferences, emergency and sudden occasions, remote field areas, temporary occasions, dynamic occasions and distributed systems, personal communications, commercial applications, etc. fiel...

Claims

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Application Information

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IPC IPC(8): H04W72/10H04L5/00H04W72/04
CPCH04L5/0071H04W72/044H04W72/56Y02D30/70
Inventor 王昭黄盛
Owner 10TH RES INST OF CETC
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