MAC Performance Analysis for Reliable Power-Line Communication Networks with ARQ Scheme.
MAC Performance Analysis for Reliable Power-Line Communication Networks with ARQ Scheme.
复制标题
采用 ARQ 方案的可靠电力线通信网络的 MAC 性能分析
DOI：
10.3390/s21010196
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发表时间：
2020-12-30
期刊：
影响因子：
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通讯作者：
Zhang H
中科院分区：
文献类型：
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作者：
Hao S;Zhang H
电力线通信（PLC）网络由于其低成本安装和广泛覆盖的特点，越来越多地用于构建工业物联网（物联网）和家庭网络系统。为了保证传输的可靠性，在可靠PLC网络的链路层引入了ARQ（自动重传请求）机制，允许数据帧多次重传，从而提高数据帧被正确接收的概率。然而，目前对PLC MAC（媒体访问控制）协议（即，IEEE 1901）没有考虑ARQ方案的影响。为了解决这个问题，我们提出了一个分析模型，研究的MAC性能的IEEE 1901协议的可靠PLC网络与ARQ方案。在建模过程中，我们首先建立了一个PLC信道模型，以反映PLC信道类型（包括瑞利衰落和对数正态衰落），加性非高斯噪声特性和ARQ方案对链路层数据传输的影响。其次，我们采用更新理论和排队动力学来捕捉在有限传输缓冲区大小的不饱和环境中执行IEEE 1901协议的传输尝试行为。在结合这两种模型的基础上，我们推导出了考虑ARQ机制影响的1901 MAC度量的封闭表达式。此外，我们证明了所提出的分析模型具有收敛性。最后，我们评估了1901协议的MAC性能的可靠PLC网络与ARQ方案，并验证了所提出的分析模型。
Power-line communication (PLC) networks have been increasingly used for constructing industrial IoT (internet of things) and home networking systems due to their low-cost installation and broad coverage feature. To guarantee the transmission reliability, ARQ (automatic repeat request) scheme is introduced into the link layer of reliable PLC networks, which allows the retransmission of a data frame several times so that it has a higher probability to be correctly received. However, current studies of performance analysis for PLC MAC (medium access control) protocol (i.e., IEEE 1901) do not take into account of the impact of ARQ scheme. To resolve this problem, we propose an analytical model to investigate the MAC performance of IEEE 1901 protocol for reliable PLC networks with ARQ scheme. In the modeling process, we first establish a PLC channel model to reflect the impacts of PLC channel types (containing Rayleigh fading and Log-normal fading), additive non-Gaussian noise feature and ARQ scheme on data transmission at link layer. Next, we employ Renewal theory and Queueing dynamics to capture the transmission attempt behavior of executing IEEE 1901 protocol in the unsaturated environment with finite transit buffer size. On the basis of combining these two models, we derive the closed-form expressions of 1901 MAC metrics considering the influence of the ARQ scheme. Furthermore, we prove that the proposed analytical model has the convergence property. Finally, we evaluate the MAC performance of 1901 protocol for reliable PLC networks with ARQ scheme and verify the proposed analytical model.