基于中速数据流的二元网络传输编码调制研究  

Binary Coded Modulation Scheme of Transmission Network Based on Middle Speed Data Stream Channel

作　　者：杨浏 许毅[2] 

机构地区：[1]国家无线电监测中心成都监测站监测业务一室,四川成都610000 [2]电子科技大学计算机科学与工程学院,四川成都610000

出　　处：《电视技术》2015年第3期93-97,共5页Video Engineering

基　　金：四川省青年基金项目(09ZQ026-032);四川省教育厅青年基金项目(11ZB132);中央高校基本科研业务费专项资金项目(12NYZYSO5)

摘　　要：由于移动通信技术的特性,在数据传输过程中,信道干扰因素非常强烈,从而导致网络数据传输的可靠性大大降低。而当前网络编码调制技术主要采用了单一的网络编码矢量量化技术,不仅忽略了信道干扰因素,而且对全部的中速数据采用等级保护模式,在传输过程误码率性能不强。对此,设计了基于移动信道中速数据流的高健壮性二元网络传输编码调制方案,引入信道干扰因素和分级保护思想,提出了联合最佳准则ROBS-C(Rule of Based Source and Channel)+分级保护DLP(Divided Level of Protection)的调制方案,兼顾了量化性能和误码性能两个方面。仿真实验表明:本文方案在低信道扰码的场合下量化性能优良,且在强信道扰码情况下,比单一因素的时候误码率低,能够更好地适应移动通信的要求。The low reliability of network data transmission is induced by the strong channel interference factor during transmission dates because of characteristics of mobile communications technology. However, the traditional network coding modulation tech- nique to solve the main-vector quantization technology based on single network coding does not consider the channel interference factors, and the level of protection mode of intermediate data all of the mobile channel, in the medium speed data transmission er- ror rate can not strong. The robustness of binary network transmission code modulation algorithm based on medium speed data mo- bile channel flow is focused on, and the channel interference factors and protection idea are introduced to propose the modulation scheme of ROBS-C criterion ＋ DLP scheme, which can have the two aspects of quantitative performance. Simulation results show this scheme proposed in this paper has better quantization performance under the condition of low channel scrambling. Compared with scheme based on single factor, the lower symbol error rate is reflected under the condition of high channel scrambling to fit the conditions of mobile communication effectively.

关 键 词：二元网络传输编码 矢量量化 信道干扰因素 分级保护思想 误码率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]