Channel resource allocation method for multi-transceiver multi-channel wireless Ad Hoc network

Abstract

The invention relates to the field of wireless mobile ad hoc networks. The invention discloses a channel resource allocation method for a multi-transceiver multi-channel wireless Ad Hoc network. TDMA-based distributed channel resources are dynamically allocated and scheduled, a node-oriented and link-oriented combined hybrid allocation mechanism is adopted for the channel resources, node-orientedresource allocation and transmission are used for broadcasting applications, and link-oriented resource allocation and transmission are used for supporting point-to-point unicast service flows with large data volume; nodes in the wireless Ad Hoc network are not limited to have the same transceiver configuration so as to support heterogeneous node networking, the number of the node transceivers andthe number of working channels are elastically variable, and the number of the node transceivers and the number of the working channels can be reduced to single transceiver and single channel conditions. According to the invention, a node-oriented and link-oriented combined hybrid allocation mechanism is adopted for channel resources, so that the resource utilization of broadcast and unicast datatransmission is more targeted, and the utilization efficiency of the channel resources is improved.

Description

technical field [0001] The invention relates to the technical field of wireless mobile ad hoc networks, in particular to a method for allocating channel resources of a multi-transceiver multi-channel wireless Ad Hoc network. Background technique [0002] The wireless Ad Hoc network has the characteristics of no center and self-organization. It does not need to set up a fixed infrastructure. It can be quickly rolled out and the network can be established by itself. It has strong mobility, flexibility and invulnerability, and can be widely used in the battlefield. communication, emergency disaster relief communication and other scenarios. Due to the characteristics of the wireless Ad Hoc network, it usually needs to design a dedicated MAC protocol different from the fixed network and the central network. [0003] According to the number of working channels of the nodes, the wireless Ad Hoc network can be divided into single-channel Ad Hoc network and multi-channel Ad Hoc netw...

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Problems solved by technology

[0008] Nevertheless, the design of TDMA scheduling algorithms is facing many challenges, especially for wireless Ad Hoc networks with multiple transceivers and multiple channels, there is no unified protocol standard

In addition, for the wireless Ad Hoc network where effective spectrum resources may change according to usage scenarios, and there may be heterogeneous nodes equipped with different numbers of transceivers in the network, and the number of node transceivers is diverse, there is no adaptive channel number and node transceivers. The number of channel resource allocation algorithms with flexible changes, so it is necessary to design novel and efficient ones that are suitable for the high dynamics of wireless Ad Hoc networks and the requirements of multi-scenario ad hoc networks, and support heterogeneous network nodes based on TDMA with elastically variable numbers of transceivers and channels Channel resource allocation algorithm for multi-transceiver multi-channel network

[0009] A wireless Ad Hoc network designed using multi-transceiver multi-channel networking can provide greater network capacity, but at the same time it will also bring new problems and challenges to resource allocation, especially how to Under the current situation, the effective use of time / space / frequency and other multi-dimensional resources to improve the utilization of channel transmission resources as much as possible has become a key issue that urgently needs breakthroughs.

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