In this paper, we present an analytical model for the scheduled access mechanism of IEEE 802.15.6 based Wireless Body Area Network (WBAN) taking into account the impact of non-ideal transmission channel. We provide a thorough analysis and closed form expressions for the frame delay, reliability of data transfer, throughput, energy consumption, and Energy Efficiency (EE) of the sensor nodes with medium to high data rate applications. We validate our theoretical derivations through simulation results. The results show the variation in the performance indicators with respect to different system parameters, such as beacon period, data transmission rate, traffic loads, channel Signal-to-Noise Ratio (SNR), Allocation Intervals (AIs), and Payload Sizes (PSs). Our results indicate the tradeoff between average frame delay and EE with respect to selection of AIs and PSs. Thus, through this analysis we show how a network designer can prepare a look-up table for sensor nodes enabling them to select the optimum and minimum AIs and their associated PSs based on the channel SNR to achieve the maximum EE for a particular average frame delay and reliability constraint.

中文翻译：

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非理想信道条件下IEEE 802.15.6 MAC协议调度访问模式的性能分析

在本文中，我们提出了一种基于 IEEE 802.15.6 的无线体域网 (WBAN) 调度访问机制的分析模型，同时考虑了非理想传输信道的影响。我们为具有中高数据速率应用的传感器节点的帧延迟、数据传输的可靠性、吞吐量、能耗和能源效率 (EE) 提供了全面的分析和封闭形式表达式。我们通过模拟结果验证了我们的理论推导。结果显示了性能指标相对于不同系统参数的变化，例如信标周期、数据传输速率、流量负载、信道信噪比 (SNR)、分配间隔 (AI) 和有效载荷大小 (PS) ）。我们的结果表明平均帧延迟和 EE 之间在 AI 和 PS 选择方面的权衡。因此，通过这个分析，我们展示了网络设计者如何为传感器节点准备一个查找表，使他们能够根据信道 SNR 选择最佳和最小的 AI 及其相关的 PS，以实现特定平均帧延迟的最大 EE和可靠性约束。