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中文摘要：
在实时性要求比较高的应用中,时延要求限制了sink的移动速率与移动轨迹,sink的移动速率限制了节点与sink的通信时间,因此很难兼顾时延要求与数据收集效率.提出一种时延受限的移动sink数据收集算法MSDC,在低能耗缓存区内找到一条sink的最优移动轨迹,在有限的时间限制内利用sink的移动性来提升传感器网络的数据收集性能.仿真结果表明,与已有算法比较,该方案能够提高网络数据采集量,降低能耗,延长网络生命周期.
英文摘要：
In real-time applications, the delay constraint limits the speed and the trajectory of mobile sink which in con-sequence restrains the communication time between the sensor nodes and the sink. So it is difficult to balance delay re-quirement with the data collecting efficiency. To address the problem above, an efficient data collection algorithm MSDCfor sensor networks is proposed. It finds an optimal sink trajectory in the data buffering and uses the mobility of sink toimprove the data collection performance in the limited time. The simulation results show that the algorithm can improvethe network data collection capacity throughput, reduce the energy consumption and prolong the network lifetime.
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