基于能量检测的大规模SIMO性能分析
Performance Analysis of Energy-Detection-Based Massive SIMO
摘要:
最近,正在研究既节能又可靠的通信系统。在本文中,我们集中在一个能量检测为基础的传输方案,其中一个发射机与一个天线和一个接收机与显着许多天线之间的通信场景被认为是。我们假设接收器最初计算所有天线的平均能量,然后通过利用平均能量水平对发送的数据进行解码。然后,我们计算平均符号错误概率的最大后验概率检测器在接收机。在此基础上,我们给出了最优决策区域。此外,我们开发了一种迭代算法,达到最佳的星座图下,一个给定的平均发射功率约束。通过数值分析,我们探讨了系统的性能。
英文摘要:
Recently, communications systems that are both energy efficient and reliable are under investigation. In this paper, we concentrate on an energy-detection-based transmission scheme where a communication scenario between a transmitter with one antenna and a receiver with significantly many antennas is considered. We assume that the receiver initially calculates the average energy across all antennas, and then decodes the transmitted data by exploiting the average energy level. Then, we calculate the average symbol error probability by means of a maximum a-posteriori probability detector at the receiver. Following that, we provide the optimal decision regions. Furthermore, we develop an iterative algorithm that reaches the optimal constellation diagram under a given average transmit power constraint. Through numerical analysis, we explore the system performance.
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