电脑与信息技术
電腦與信息技術
전뇌여신식기술
COMPUTER AND INFORMATION TECHNOLOGY
2012年
2期
8-11,76
,共5页
容错技术%移动计算%无线网络
容錯技術%移動計算%無線網絡
용착기술%이동계산%무선망락
fault-tolerance%mobile computing%wireless network
移动计算作为新兴技术正在迅速发展。与有线固定环境相比，移动环境中的无线网络连接更加脆弱。移动主机可靠性差。由此在移动计算环境中引入实现错误恢复的机制显得尤为重要。文章详细分析了移动计算的环境及其特点，介绍基于检查点和日志的容错技术，基于移动Agent的容错技术，并作了相关的比较。
移動計算作為新興技術正在迅速髮展。與有線固定環境相比，移動環境中的無線網絡連接更加脆弱。移動主機可靠性差。由此在移動計算環境中引入實現錯誤恢複的機製顯得尤為重要。文章詳細分析瞭移動計算的環境及其特點，介紹基于檢查點和日誌的容錯技術，基于移動Agent的容錯技術，併作瞭相關的比較。
이동계산작위신흥기술정재신속발전。여유선고정배경상비，이동배경중적무선망락련접경가취약。이동주궤가고성차。유차재이동계산배경중인입실현착오회복적궤제현득우위중요。문장상세분석료이동계산적배경급기특점，개소기우검사점화일지적용착기술，기우이동Agent적용착기술，병작료상관적비교。
As a new technology, mobile computing is rapidly expanding. Compared with stable environment of cable network, the wireless network in mobile environment is much poorer in connection and mobile hosts＇ reliability, therefore, it＇s very important to introduce fault-tolerance into mobile computing. This paper makes a detailed discussion on mobile computing and its characters. We also introduce two based on check pointing and message log and fault-tolerance based on mobile agent. At the end of the paper, a comparison is also presented on related methods.
