Priority-based wireless access control method for dual-path routing

An admission control and priority technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as single-path routing congestion, achieve good load balancing, ensure bandwidth, and improve efficiency.

Inactive Publication Date: 2016-01-20
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0004] The present invention is aimed at the problem of routing-related wireless network admission control optimization, and proposes a priority-based dual-path routing wireless admission control method to overcome the shortcoming that single-path routing may encounter congestion, and the data packet Priorities are taken into account to support wireless networks for smart roads

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  • Priority-based wireless access control method for dual-path routing
  • Priority-based wireless access control method for dual-path routing
  • Priority-based wireless access control method for dual-path routing

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Embodiment Construction

[0024] A priority-based dual-path routing wireless admission control method, which analyzes the priority-based available bandwidth of each node, and transmits the available bandwidth to the terminal node through a path request packet. After receiving all candidate paths, select Choose the best two to meet the bandwidth request of the data stream. Finally, the terminal node returns the route, and performs admission control by predicting the remaining bandwidth and available bandwidth (based on priority) of the node and its surrounding nodes, so as to ensure that data flows with high priority can be admitted first. Guaranteed its bandwidth.

[0025] In the admission control of the present invention, the requested data flow is divided into different priorities, and a new bandwidth estimation algorithm is introduced to estimate the remaining bandwidth of the node and the available bandwidth based on the priority, and these parameters are used to perform the admission control. Ing...

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Abstract

The invention relates to a priority-based wireless access control method for dual-path routing. In the method, a priority-based available bandwidth of each node is analyzed, the available bandwidth is transmited to a terminal node through a path request data packet, and two best paths are selected to meet the bandwidth request of data stream after all candidate paths are received. At last, the terminal node returns routing, and carries out access control through predicting the residual bandwidth and the available bandwidth (based on priority) of the node and the peripheral nodes thereof, so that the data stream with high priority can be preferentially accessed to guarantee the bandwidth. Through combining routing and access control, the efficiency for access control is better improved, and meanwhile, the conventional single-path routing access control is expanded to dual-path routing access control, the load balancing is better realized and the better service quality is provided. In comparison with the prior art, the method does well in the aspects of throughput capacity, time delay and shake, and meanwhile, the bandwidth of the data packet with high priority is preferentially guaranteed.

Description

technical field [0001] The invention relates to a computer wireless network protocol, in particular to a priority-based dual-path routing wireless admission control method. Background technique [0002] There are two types of admission control, one is route-related and the other is route-independent. Route-independent admission control has been proposed a lot, such as: SWAN (StatelessWirelessAdHocNetworks), MPARC (Multi-PriorityAdmissionandRateControl). However, previous studies have shown that route-related admission control may be better than route-independent ones, so the route-related admission control CACP (Contention-aware Admission Control Protocol) was proposed, but their routes are based on a single path. Parallel multi-path routing distributes data flows to multiple non-overlapping paths. Compared with single-path routing, it can provide more stable quality of service (QoS) and better load balancing. AODVM (AdHocDistanceVectorRoutingMultipathProtocol), MSR (Multi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04W40/04H04W72/10
CPCH04W28/08H04W40/04H04W72/56
Inventor 吴彦琼陈世平
Owner UNIV OF SHANGHAI FOR SCI & TECH
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