Ordered Transmission for Efficient Wireless Autonomy
Ordered Transmission for Efficient Wireless Autonomy
复制标题
有序传输实现高效无线自治
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Rick S. Blum
中科院分区：
文献类型：
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作者：
Yicheng Chen;Brian M. Sadler;Rick S. Blum
协作自治系统可以依赖于动态设置中的无线通信。这些系统的基础是协作决策、收集证据和有效地做出联合决策。在许多应用中，需要快速的决策周期，而决策速度限制了整个系统的性能。在本文中，我们开发和分析了一个二进制假设检验方法，使用有序传输与K leq N，其中N是传感器的数量和K是传输到融合中心的数量。通过对局部似然性排序，首先传输最具信息性的局部统计数据。我们的分析，使用顺序统计量的属性，测试的特点，并揭示了K和N之间的权衡。这为快速协作决策提供了一种灵活的方案，只需K=1次传输，并通过增加N同时保持K较小来实现非传统的权衡。结果可以应用于各种分布式决策应用。
Collaborative autonomous systems may rely on wireless communications in dynamic settings. Fundamental to these systems is collaborative decision making, gathering evidence and efficiently producing a joint decision. In many applications fast decision cycles are required and the speed of decision limits the overall system performance. In this paper we develop and analyze a binary hypothesis testing approach using ordered transmission with K leq N, where N is the number of sensors and K is the number of transmissions to a fusion center. By ordering the local likelihoods the most informative local statistics are transmitted first. Our analysis, using properties of order statistics, characterizes the test and reveals tradeoffs between K and N. This provides a flexible scheme for quick collaborative decision making, with as few as K=1 transmissions, and enables nontraditional tradeoffs by increasing N while keeping K small. The results can be applied to a variety of distributed decision applications.