摘要
本文对无线ＡＴＭ通信网ＣＢＲ业务定时信息的恢复技术进行了研究。提出了异步剩余时间标签（ＡＲＴＳ）技术，并通过码速调整改善收端的ＣＢＲ业务时钟性能，给出了实现方案。同时，提出采用ＡＲＴＳ ＦＩＦＯ吸收定时信息的延时抖动。由于无线ＡＴＭ通信网的误码率较大，其信元丢失率较高，本文在分析ＲＴＳ的多重码速调整特性基础上，还提出了利用已收到相邻ＡＲＴＳ之间的差值规律来估计丢失的ＡＲＴＳ的新方法。理论计算和模拟结果表明，本文提出的定时信息恢复技术完全适用于无线ＡＴＭ通信网，并且与Ｂ－ＩＳＤＮ／ＡＴＭ采用的ＳＲＴＳ技术有较好的兼容性。
This paper introduces a timing recovery technique for CBR traffic in Wireless ATM Networks .A novel technique named Asynchronous Residual Time Stamp( ARTS)combined with stuffing technique is pre-sented , the implement scheme is also discussed . In addition , areceived First-In-First-Out buffer is implemented toabsorb the cell delay jitter at the destination terminal,the regularity in the previously received ARTS is used toestimate the loss of the ARTSs . From the analysis and simulation niulation results, we know that the timing recovery tech-nique for CBR traffic proposed by this paper is adequate for Wireless ATM Networks , and it is compatible withSRTS for B-ISDN/ATM well.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1998年第4期59-65,共7页
Acta Electronica Sinica
基金
电子科学研究院基金
国家"863"计划项目资助
