直升机助降紫外光通信中分步式UEP-LT码研究

doi:10.3969/j.issn.1000-3428.2016.09.015

计算机工程

直升机助降紫外光通信中分步式UEP-LT码研究

赵太飞^1,2,刘雪¹,刘一杰¹

(1.西安理工大学自动化与信息工程学院,西安 710048;2.光纤传感与通信教育部重点实验室,成都 610054)

收稿日期:2015-08-01 出版日期:2016-09-15 发布日期:2016-09-15
作者简介:赵太飞(1978-),男,副教授,主研方向为无线紫外光通信;刘雪、刘一杰,硕士研究生。
基金资助:
国家自然科学基金委员会-中国民航局民航联合研究基金资助项目(U1433110);陕西省科技计划工业公关基金资助项目(2014K05-18);陕西省教育厅产业化培育基金资助项目(2013JC09);西安市科学计划基金资助项目(CXY1435(4));西安市碑林区科技计划基金资助项目(GX1302)。

Research on Stepwise UEP-LT Code for Ultraviolet Communication in Helicopter Emergency Landing Guiding

ZHAO Taifei^1,2,LIU Xue¹,LIU Yijie¹

(1.Faculty of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,China; 2.Key Laboratory of Optical Fiber Sensing and Communications,Ministry of Education,Chengdu 610054,China)

Received:2015-08-01 Online:2016-09-15 Published:2016-09-15

摘要/Abstract

摘要： 直升机应急起降中紫外光通信数据决定了助降过程的安全性,需要对数据码流中的重要数据提供更强保护。针对该问题,结合重复信息块方法对扩展窗函数(EWF)法,提出一种分步式非均等数据保护的LT码(SUEP-LT)。在二进制删除信道下对重复信息块方法、EWF方法和SUEP-LT进行仿真和对比,结果表明,SUEP-LT编码方式具有更强的非均等保护特性,在牺牲少量整体数据可靠性情况下可明显提高重要等级数据的可靠性,保障直升机起降中重要数据的优先可靠传输,增强直升机起降的安全性。

关键词: 紫外光通信, LT码, 非均等差错保护, 删除信道, 直升机助降

Abstract: Ultraviolet communication data determines the security of helicopter emergency landing.In order to provide greater protection for More Important Bits(MIB),a novel approach to provide Unequal Error Protection(UEP) based on the block duplication method and improved Expanding Window Fountain(EWF) codes over erasure channels,named SUEP-LT code,is developed and discussed.Block duplication method,EWF and SUEP-LT code are simulated and compared over binary erasure channel.Experimental results show that,the SUEP-LT code has better performance in UEP.It can yield lower Bit Error Rates(BER) for the MIB,sacrificing the least reliability of the whole data.Priority and reliability of the important data are guaranteed.Thus,the security of helicopter emergency landing is improved.

Key words: ultraviolet communication, LT code, Unequal Error Protection(UEP), erasure channel, helicopter landing guiding

中图分类号:

TN929.12

赵太飞,刘雪,刘一杰. 直升机助降紫外光通信中分步式UEP-LT码研究[J]. 计算机工程, doi: 10.3969/j.issn.1000-3428.2016.09.015.

ZHAO Taifei,LIU Xue,LIU Yijie. Research on Stepwise UEP-LT Code for Ultraviolet Communication in Helicopter Emergency Landing Guiding[J]. Computer Engineering, doi: 10.3969/j.issn.1000-3428.2016.09.015.

https://www.ecice06.com/CN/Y2016/V42/I9/83

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