摘要
针对工业控制网的实时性和可靠性要求 ,提出一种新的面向工业控制环境的无线通信编解码技术 ,该技术混合了前向纠错和自动重复两种方法 ,信道编码采用纠错能力强的 RS码 .当信道特性不理想时 ,采用表决策略降低差错率 ,而基于截止时间松弛度的变冗余度编码策略有效地提高了系统在干扰严重环境下的可靠性 .
To satisfy the requirements for stringent timing constraints and reliability guarantees in industrial wireless networks, this paper proposes a new coding and decoding method. This method hybridizes automatic repeat request theme and forward error correction theme. RS codes are used in this system due to their very good error correction. A voting theme is introduced in order to increase the probability of successful decoding. Deadlines dependent redundant coding can efficiently improve the probability of delivering information before a given deadline in industrial bad conditions.
出处
《信息与控制》
CSCD
北大核心
2002年第5期416-419,共4页
Information and Control
基金
国家自然科学基金资助项目 ( No. 6 99840 0 3)
国家 86 3/CIMS主题项目 ( No. 5 11-845 -0 0 8)
上海科技启明星计划 ( No.99QD14 0 12 )
