基于3G网络的无线监控系统码率自适应调整算法

王来1; 张闯*2; 张大恒3; 全东群2; 陈铎2

doi:10.16411/j.cnki.issn1006-7736.2015.01.017

大连海事大学学报 >

2015 , Vol. 41 >Issue 1: 96 - 99

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2015.01.017

船舶与海洋工程

基于3G网络的无线监控系统码率自适应调整算法

王来¹ ,
张闯^*2 ,
张大恒³ ,
全东群² ,
陈铎²

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（1.营口港务集团有限责任公司，辽宁营口 115007；2.大连海事大学航海学院，辽宁大连 116026；3.大连海洋大学航海与船舶工程学院，辽宁大连 116023）

王来（1961-），男，高级工程师.

收稿日期: 2014-05-27

修回日期: 2014-08-04

网络出版日期: 2014-08-15

基金资助

中央高校基本科研业务费专项资金资助（资助号：3132014029）.

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Adaptive bitrate adjustment algorithm based on 3G wireless monitor system

WANG Lai¹ ,
ZHANG Chuang^*2 ,
ZHANG Da-heng³ ,
QUAN Dong-qun² ,
CHEN Duo²

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（1.Ying Kou Port Group CORP., Yingkou 115007, China；2. Navigation College, Dalian Maritime University, Dalian 116026,
China；3. Navigation and Ship Engineering College, Dalian Ocean University, Dalian 116023,China）

Received date: 2014-05-27

Revised date: 2014-08-04

Online published: 2014-08-15

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摘要

针对基于3G网络的无线监控系统中码率波动及丢包率的问题，在现有码率调控策略基础上,采用一种基于丢包率和视频延时进行网络状态的判定方法，并对现有的AIMD算法进行改进，使之能满足自适应调整的要求.该算法已在船舶及港口水域进行了测试，结果表明，在3G网络宽带条件下采用视频延时和丢包率来调整码率的方法，可使码率变化较大、丢包率数量较小，两者性能均得到较大改善.

关键词： 3G网络; 无线监控系统; 码率; 丢包率; 自适应调整

本文引用格式

王来¹ , 张闯^*2 , 张大恒³ , 全东群² , 陈铎² . 基于3G网络的无线监控系统码率自适应调整算法[J]. 大连海事大学学报, 2015 , 41(1) : 96 -99 . DOI: 10.16411/j.cnki.issn1006-7736.2015.01.017

Abstract

To solve the problems of fluctuation of bit rate and packet loss rate based on 3G network wireless monitoring system, on the basis of the existing code rate control strategy, a method based on the packet loss rate and video delay was adopted, and the existing AIMD algorithm was improved so as to meet the requirements of adaptive adjustment. Application results show that the algorithm can estimate the change of network condition correctly and limit the packet loss rate to a very small scale. Comparing with the existing adaptive bitrate adjustment algorithms, the proposed algorithm can achieve better performances in bitrate fluctuation and packet loss rate in the 3G environment．

Key words： 3G network; wireless monitor system; code rate; packet loss rate; adaptive adjustment

参考文献

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