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An algorithm for sink positioning in bus-assisted smart city sensing

机译:公交辅助智能城市感知中的汇点定位算法

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Smart Cities use data obtained from different sensors to offer better services. Such data is usually sent to sinks, using the paradigm of Internet of Things. However, covering the whole city area with static sensors might be expensive. This paper addresses the utilization of the public transportation system as a mobility platform for sensor nodes and bus stops acting as sinks. This platform can improve the coverage of a sensor network and take advantage of opportunistic communication. Since this platform can be used for delay-constrained applications, we propose an algorithm to choose sensor sinks in the bus stops of a smart city that minimizes the maximum delay when delivering messages. We compare our solution with an optimal formulation and use real data, obtained in buses from Rio de Janeiro, as an input of our algorithm. Our experiments show that we can use approximately 16% of bus stops as sinks, having less than 10% of increase in the network maximum delay and no significant loss in the spatial coverage. (C) 2017 Elsevier B.V. All rights reserved.
机译:智慧城市使用从不同传感器获得的数据来提供更好的服务。通常使用物联网范式将此类数据发送到接收器。但是,用静态传感器覆盖整个市区可能很昂贵。本文着眼于利用公共交通系统作为传感器节点和公交车站作为汇的移动平台。该平台可以提高传感器网络的覆盖范围并利用机会通信。由于该平台可用于延迟受限的应用程序,因此我们提出了一种算法,可在智能城市的公交车站内选择传感器接收器,以最大程度地减少传递消息时的最大延迟。我们将我们的解决方案与最优公式进行比较,并使用从里约热内卢的公共汽车上获得的真实数据作为算法的输入。我们的实验表明,我们可以使用大约16%的公交车站作为汇点,网络最大延迟的增加少于10%,并且空间覆盖率没有明显损失。 (C)2017 Elsevier B.V.保留所有权利。

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