Haque Khandaker Foysal, Abdelgawad Ahmed, Yelamarthi Kumar
Institute for the Wireless Internet of Things, Northeastern University, Boston, MA 02115, USA.
College of Science and Engineering, Central Michigan University, Mt Pleasant, MI 48859, USA.
Sensors (Basel). 2022 Apr 23;22(9):3245. doi: 10.3390/s22093245.
The recent development of wireless communications has prompted many diversified applications in both industrial and medical sectors. Zigbee is a short-range wireless communication standard that is based on IEEE 802.15.4 and is vastly used in both indoor and outdoor applications. Its performance depends on networking parameters, such as baud rates, transmission power, data encryption, hopping, deployment environment, and transmission distances. For optimized network deployment, an extensive performance analysis is necessary. This would facilitate a clear understanding of the trade-offs of the network performance metrics, such as the packet delivery ratio (PDR), power consumption, network life, link quality, latency, and throughput. This work presents an extensive performance analysis of both the encrypted and unencrypted Zigbee with the stated metrics in a real-world testbed, deployed in both indoor and outdoor scenarios. The major contributions of this work include (i) evaluating the most optimized transmission power level of Zigbee, considering packet delivery ratio and network lifetime; (ii) formulating an algorithm to find the network lifetime from the measured current consumption of packet transmission; and (iii) identifying and quantizing the trade-offs of the multi-hop communication and data encryption with latency, transmission range, and throughput.
无线通信的最新发展促使其在工业和医疗领域出现了许多多样化的应用。Zigbee是一种基于IEEE 802.15.4的短程无线通信标准，在室内和室外应用中都有广泛应用。其性能取决于网络参数，如波特率、发射功率、数据加密、跳频、部署环境和传输距离。为了实现优化的网络部署，进行广泛的性能分析是必要的。这将有助于清晰地理解网络性能指标之间的权衡，如数据包交付率（PDR）、功耗、网络寿命、链路质量、延迟和吞吐量。这项工作在一个部署于室内和室外场景的实际测试平台上，针对加密和未加密的Zigbee，使用上述指标进行了广泛的性能分析。这项工作的主要贡献包括：（i）考虑数据包交付率和网络寿命，评估Zigbee最优化的发射功率水平；（ii）根据测量的数据包传输电流消耗，制定一种算法来计算网络寿命；（iii）识别并量化多跳通信和数据加密在延迟、传输范围和吞吐量方面的权衡。
