.ac.in © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023 M. A. Matin (ed.), A Glimpse Beyond 5G in Wireless Networks, Signals and Communication Technology, https://doi.org/10.1007/978-3-031-13786-0_6 P. Shaik and V. Bhatia photovoltaic cells. Solar energy can be harvested at a rate of 100 mW/cm2. Energy harvesting can be performed through EM energy which is based on near-field and far-field EM waves. In near-field, energy can be harvested through electromagnetic induction and magnetic resonance, whereas in far-field region, energy can be harvested through radio frequency (RF) signals. In this chapter, the analysis is carried out to address the realization of green communications through EH. Among the available ambient resources, RF electromagnetic signal is the promising resource to harvest the energy. In the literature there are several seminal works on EH illustrating the potential of EH through SWIPT and presenting the methods to harvest the energy [7-10]. In [7], authors proposed the dedicated sources to transfer the energy wirelessly. Some of the notable works in dual-hop communications is presented to harvested the energy [11-14]. In [11], authors have proposed energy harvesting protocols for delay-limited and delay-tolerant transmission modes. In [15], authors investigated the performance of cooperative D2D multiple-input and multiple-output (MIMO) relay system over Nakagami-m fading channels, optimized the relay location, and performed ASER analysis for hexagonal quadrature amplitude modulation (HQAM), rectangular QAM (RQAM), and cross QAM (XQAM) schemes. In [15], authors investigated the performance of D2D system model without considering the SWIPT techniques and channel imperfections. In [16], authors analyzed cooperative MIMO relay systems performance over Nakagami-m fading channels through the system metrics such as outage probability and asymptotic outage probability and considered the impact of imperfect CSI in the analysis. Further, ASER analysis is performed for HQAM,