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Modeling and delay analysis of wireless HANs in smart grids over fading channels subjected to multiple access schemes and interference

机译:遭受多种接入方案和干扰的衰落信道上智能电网中无线HAN的建模和延迟分析

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Smart grids are comprised of several interconnected layers of networks. A set of Electrical Devices (EDs) in the lowest layer, the Home Area Network (HAN), communicates with the Mesh Client (MC). The HAN, in this paper, is modelled as a wireless network using Frequency Division Multiple Access (FDMA) and Time Division Multiple Access (TDMA) to facilitate communication between the EDs and their respective MCs. For these models, channel capacities over the Rayleigh and Nakagami fading channels are determined and delay analysis is presented. Upper and lower bound expressions for achievable delay, in closed-form, are derived as a function of Signal-to-Interference-plus-Noise Ratio (SINR), received power, number of EDs, number of channels, and Inter-channel Interference Range (ICR). Numerical simulations have been used to validate the analytical results. It is shown that transmission of packets using TDMA results in a shorter delay than by using FDMA.
机译:智能电网由几个相互连接的网络层组成。最低层中的一组电气设备(ED),即家庭局域网(HAN),与网状客户端(MC)通信。在本文中,HAN被建模为使用频分多址(FDMA)和时分多址(TDMA)的无线网络,以促进ED与它们各自的MC之间的通信。对于这些模型,确定了瑞利和中上衰落信道上的信道容量,并进行了延迟分析。闭口形式可实现的延迟的上限和下限表达式是根据信干噪比(SINR),接收功率,ED数量,通道数量和通道间干扰得出的范围(ICR)。数值模拟已用于验证分析结果。结果表明,与使用FDMA相比,使用TDMA传输数据包会导致更短的延迟。

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