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Priority-based dual-path routing wireless admission control method

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, improve efficiency, and ensure the effect of bandwidth

Inactive Publication Date: 2018-11-13
UNIV OF SHANGHAI FOR SCI & TECH
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  • Claims
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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 dual-path routing wireless admission control method
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  • Priority-based dual-path routing wireless admission control method

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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 dual-path routing wireless admission control method, which analyzes the available bandwidth of each node based on priority, and transmits the available bandwidth to the terminal node through a path request data packet, and after receiving all candidate paths Finally, select the best two to meet the bandwidth request of the data flow. 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. Through the combination of routing and admission control, the efficiency of admission control is better improved. At the same time, the traditional single-path routing admission control is extended to dual-path routing admission control, which better realizes load balancing and provides better quality of service. Compared with the prior art, the invention has excellent performance in terms of throughput, time delay and jitter, and at the same time guarantees the bandwidth of high-priority data packets first.

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 (Stateless Wireless Ad Hoc Networks), MPARC (Multi-Priority Admission and Rate Control). However, previous studies have shown that routing-related admission control may be better than routing-independent ones, so routing-related admission control CACP (Contention-aware Admission Control Protocol) was proposed, but their routing is based on a single path of. 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 (Ad Hoc Distance Vector Routing MultipathPr...

Claims

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Application Information

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Patent Type & Authority Patents(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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