Performance Analysis of Energy-Detection-Based Massive SIMO

摘要

Recently, communications systems that are both energy efficient and reliableare under investigation. In this paper, we concentrate on anenergy-detection-based transmission scheme where a communication scenariobetween a transmitter with one antenna and a receiver with significantly manyantennas is considered. We assume that the receiver initially calculates theaverage energy across all antennas, and then decodes the transmitted data byexploiting the average energy level. Then, we calculate the average symbolerror probability by means of a maximum a-posteriori probability detector atthe receiver. Following that, we provide the optimal decision regions.Furthermore, we develop an iterative algorithm that reaches the optimalconstellation diagram under a given average transmit power constraint. Throughnumerical analysis, we explore the system performance.