A Cross-Layered Theoretical Model of IEEE 1901 Power-Line Communication Networks Considering Retransmission Protocols
A Cross-Layered Theoretical Model of IEEE 1901 Power-Line Communication Networks Considering Retransmission Protocols
复制标题
考虑重传协议的 IEEE 1901 电力线通信网络跨层理论模型
DOI：
10.1109/access.2021.3059246
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发表时间：
2021-01-01
期刊：
影响因子：
3.9
通讯作者：
Zhang, Hu Yin
中科院分区：
文献类型：
--
作者：
Hao, Sheng;Zhang, Hu Yin
电力线通信（PLC）是构建物联网系统的一种很有前途的通信技术，它采用IEEE 1901作为其介质访问控制（MAC）协议。目前关于IEEE 1901 MAC性能分析的研究没有考虑物理层重传协议的影响，即ARQ（自动重复请求）和HARQ-CC（混合ARQ与追逐合并）。此外，1901协议如何影响PLC网络的能耗，以及1901协议是否具有约束性能也是这些现有工作中未解决的问题。针对上述问题，我们提出了一个跨层理论模型来深入分析1901协议，在建模过程中综合考虑了物理层重传协议（ARQ和HARQ-CC）、信道衰落模式和实际配置（缓冲区大小、有限流量负载等）的影响。在此基础上，我们导出了考虑重传协议的1901 MAC度量的封闭表达式。在此基础上，建立了1901协议的能量消耗模型，并给出了约束性能分析。最后，我们评估了1901协议在不同重传协议和系统参数下的性能，并验证了所提出的跨层理论模型。
Power-line communication (PLC) is a promising communication technology of constructing IoT (internet of things) systems, and it employs IEEE 1901 as its medium access control (MAC) protocol. Current studies about IEEE 1901 MAC performance analysis do not consider the influence of physical layer's retransmission protocols, i.e., ARQ (automatic repeat request) and HARQ-CC (hybrid ARQ with chase combining). Moreover, how 1901 protocol affect the energy consumption in PLC networks, and whether 1901 protocol has bound performance are also unsolved in these existing works. Focusing on the above problems, we put forward a cross-layered theoretical model to insightfully analyze 1901 protocol, where the impacts of physical layer's retransmission protocols (ARQ and HARQ-CC), channel fading modes and practical configurations (buffer size, finite traffic load, etc.) are comprehensively taken into consideration in the modeling process. On this basis, we derive the closed-form expressions of 1901 MAC metrics considering retransmission protocols. Furthermore, we construct an energy consumption model, and provide the bound performance analysis for 1901 protocol. Finally, we evaluate the performance of 1901 protocol under different retransmission protocols and system parameters, and verify the proposed cross-layered theoretical model.