The principle of Smart Cities is the interconnection of services, based on a network of Internet of Things (IoT) devices. As the number of IoT devices continue to grow, the demand to organize and maintain the IoT applications is increased. Therefore, the solutions for smart city should have the ability to efficiently utilize the resources and their associated challenges. Neighbor aware solutions can enhance the capabilities of the smart city. In this article, we briefly overview the neighbor aware solutions and challenges in smart cities. We then categorize the neighbor aware solutions and discuss the possibilities using the collaboration among neighbors to extend the lifetime of IoT devices. We also propose a new duty cycle MAC protocol with assistance from the neighbors to extend the lifetime of the nodes. Simulation results further coagulate the impact of neighbor assistance on the performance of IoT devices in smart cities.

中文翻译：

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智能城市中物联网设备的邻居感知协议—概述，挑战和解决方案

智能城市的原理是基于物联网（IoT）设备网络的服务互连。随着物联网设备数量的持续增长，对组织和维护物联网应用程序的需求也在增加。因此，智慧城市的解决方案应具有有效利用资源及其相关挑战的能力。邻居感知解决方案可以增强智慧城市的功能。在本文中，我们简要概述了智慧城市中邻国感知的解决方案和挑战。然后，我们对了解邻居的解决方案进行分类，并讨论使用邻居之间的协作来延长IoT设备寿命的可能性。我们还提出了一种新的占空比MAC协议，在邻居的帮助下可以延长节点的寿命。