面向业务的多终端动态协同构造机制
doi: 10.3724/SP.J.1146.2011.01293
Service-oriented Multi-devices Dynamic Cooperation Mechanism
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摘要: 在MANET组成的泛在末梢环境中，网络的时变性和终端能力的有限性无法保证持续性的高质量异构业务。该文首先定义了通用的泛在个性化业务模型，并提出了综合业务上下文信息的多终端协同问题；在此基础上，提出了基于启发式的多终端协同构造机制，实现执行业务终端集合的构造，包括业务发起、多终端协同构造和质量监测3部分；最后，通过OPNET和MATLAB仿真，在支持差异性业务的同时，丢包率较动态嵌入式任务任播(DTA)提高了3%～17%，达到了面向业务的终端任播(SDA)相同的水平，并且在能耗方面相对于前两者节约了0%～20%，同时缩短了业务重启过程的时间，由此证明该机制具有较优的效率。Abstract: It is hard to supply high quality service constantly because of the dynamic characteristics of MANET and the limit of devices capacity in ubiquitous environment. In this paper, personal ubiquitous service model is defined and Multi-Devices Cooperation Problem (MDCP) is imported based on service context. And personal multi-devices cooperation mechanism is proposed to support three processes of service requiring, multi-devices cooperation building and quality monitoring. Finally, the simulation is implemented with OPNET and MATLAB. The result shows this mechanism could support personalized services, improve 3%～17% about packet loss rate, save 0%～20% in energy consumption and cut short in the time of service re-start than Dynamic Task-embedding Anycasting (DTA) and Service-oriented Device Anycasting (SDA).
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Key words:
- MANET /
- Personal ubiquitous service model /
- Multi-devices cooperation /
- Device
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