计算机与现代化
計算機與現代化
계산궤여현대화
COMPUTER AND MODERNIZATION
2013年
12期
56-61
,共6页
移动数据库%移动计算环境%自适应缓存管理%位置服务%断接
移動數據庫%移動計算環境%自適應緩存管理%位置服務%斷接
이동수거고%이동계산배경%자괄응완존관리%위치복무%단접
mobile database%mobile computing environment%self-adaptive cache management%location based service%discon-nection
针对移动计算环境，提出移动数据库自适应缓存管理概念，给出移动数据库自适应缓存模型。针对移动位置服务提出弹性分组压缩位向量法，针对断接性提出主动夭折与通知确认机制相结合法。详细给出移动数据库自适应缓存调度算法及实现并通过移动手机预约挂号系统的应用验证该方法的有效性。实际运行结果表明它能大大改善移动应用响应时间、降低系统资源开销，在支持移动位置服务及断接性等方面具有较好的性能，从而提升移动应用整体性能。
針對移動計算環境，提齣移動數據庫自適應緩存管理概唸，給齣移動數據庫自適應緩存模型。針對移動位置服務提齣彈性分組壓縮位嚮量法，針對斷接性提齣主動夭摺與通知確認機製相結閤法。詳細給齣移動數據庫自適應緩存調度算法及實現併通過移動手機預約掛號繫統的應用驗證該方法的有效性。實際運行結果錶明它能大大改善移動應用響應時間、降低繫統資源開銷，在支持移動位置服務及斷接性等方麵具有較好的性能，從而提升移動應用整體性能。
침대이동계산배경，제출이동수거고자괄응완존관리개념，급출이동수거고자괄응완존모형。침대이동위치복무제출탄성분조압축위향량법，침대단접성제출주동요절여통지학인궤제상결합법。상세급출이동수거고자괄응완존조도산법급실현병통과이동수궤예약괘호계통적응용험증해방법적유효성。실제운행결과표명타능대대개선이동응용향응시간、강저계통자원개소，재지지이동위치복무급단접성등방면구유교호적성능，종이제승이동응용정체성능。
Aiming at the mobile computing environment , concept of self-adaptive cache management of mobile database is presen-ted and a good concept model is proposed for it .Flex group bit vector compression method is proposed to resolve location based service in mobile environment and active abort type combining with mechanism of notification acknowledgement is proposed to re -solve the frequent disconnection in mobile environment .The specification of the scheduling algorithm is also presented in detail . The feasibility and availability have been proved by running the policy on designed mobile online doctor reservation system .The results of the practical use show that self-adaptive database cache management can dramatically shorten the system response time and reduce spending of system resources , and is of better performance in supporting location based service and the frequent dis -connecting in mobile environment , thus effectively improves the whole performance of mobile application .
