PINCH: Self-Organized Context Neighborhoods for Smart Environments
PINCH: Self-Organized Context Neighborhoods for Smart Environments
复制标题
DOI：
10.1109/saso.2018.00023
复制
发表时间：
2018-09
期刊：
影响因子：
--
通讯作者：
Chenguang Liu;C. Julien;A. Murphy
中科院分区：
文献类型：
--
作者：
Chenguang Liu;C. Julien;A. Murphy
今天的“智能”领域是由人们携带并嵌入环境中的轻型电池供电设备驱动的。许多应用依赖于连续的邻居发现，即，检测附近其他设备的能力。用于邻居发现的应用程序有很大的不同，但它们都依赖于一个协议，在该协议中，设备交换包含设备标识符的周期性信标。许多应用还最终涉及评估和适应关于物理世界和设备在该世界中的情况所感测的上下文信息（例如，其位置或速度、环境温度或声音等）。在本文中，我们定义了主动隐式邻域上下文启发式（PINCH），它利用未使用的有效载荷在定期邻居发现信标机会主义地分布在本地区域的上下文信息。PINCH的自组织算法使用一跳网络邻居状态的有限本地视图来确定设备感测和共享的最有用的上下文信息类型。在本文中，我们开发的算法，集成的PINCH与智能城市模拟器的实现，并基准的权衡自组织的本地上下文共享与2.4GHz的邻居发现信标。
Today's "smart'" domains are driven by lightweight battery operated devices carried by people and embedded in environments. Many applications rely on continuous neighbor discovery, i.e., the ability to detect other nearby devices. Application uses for neighbor discovery are widely varying, but they all rely on a protocol in which devices exchange periodic beacons containing device identifiers. Many applications also ultimately involve assessing and adapting to context information sensed about the physical world and the device's situation in that world (e.g., its location or speed, the ambient temperature or sound, etc.). In this paper, we define Proactive Implicit Neighborhood Context Heuristics (PINCH), which leverages unused payload in periodic neighbor discovery beacons to opportunistically distribute context information in a local area. PINCH's self-organizing algorithms use limited local views of the state of a one-hop network neighborhood to determine the most useful type of context information for a device to sense and share. In this paper, we develop the algorithms, integrate an implementation of PINCHwith a smart city simulator, and benchmark the tradeoffs of self-organized local context sharing with 2.4GHz neighbor discovery beacons.