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Smart city article details
| Title | Energy-Efficient Swipt-Aided Noma With Spatial Modulation For Green Communication In Beyond 5G/6G Networks |
|---|---|
| ID_Doc | 23518 |
| Authors | Srikamu C.; Jayabharathy R.; Sujanth N.K.G.; Karthikeyan S. |
| Year | 2025 |
| Published | RFID, Microwave Circuit, and Wireless Power Transfer Enabling 5/6G Communication |
| DOI | http://dx.doi.org/10.4018/979-8-3693-8799-3.ch012 |
| Abstract | This chapter presents a Simultaneous Wireless Information and Power Transfer (SWIPT) base Cooperative Non- Orthogonal Multiple Access (CNOMA) system aided by Spatial Modulation (SM), designed by energy- efficient or "green" communication in beyond 5G (B5G) and 6G applications. The proposed system leverages NOMA to enhance spectral efficiency by allowing multiple users to share the same frequency and time resources, differentiated through power domain multiplexing. SWIPT is incorporated to enable near users to harvest energy from the received RF signals, which relay information to far users in a cooperative NOMA system. Spatial modulation reduces hardware complexity by activating a single antenna for data transmission, significantly enhancing energy efficiency while maintaining high data rates. This SM SWIPT NOMA framework addresses the challenges of power- constrained and spectrumlimited scenarios, providing a low- power, high- performance solution ideal for green communications. The system finds applications in smart cities, massive machine- type communication (mMTC) and vehicular networks where energy efficiency, coverage extension and user fairness are critical. Simulation results demonstrate the system's superior energy efficiency, spectral efficiency and performance gains compared to conventional techniques, making it a viable solution for sustainable communication in B5G and 6G networks. At a transmit power of 20 dBm, energy harvested in SM SWIPT NOMA is 135.12 joules and that of SM SWIPT OMA is 67.56 joules. © 2025 by IGI Global Scientific Publishing. All rights reserved. |
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