Abstract

Future communication networks require increased data rates, energy efficiency, and spectrum reuse to accommodate green 6G systems. Traditional orthogonal multiple access and standalone MIMO architectures cannot efficiently serve multiple users under restricted spectral and power regimes. This work investigates a hybrid MIMO and NOMA system integrated with IM to improve the data capacity, reduce power consumption, and minimize bit errors in multi-user wireless systems. This proposed MIMO-NOMA-IM model embeds extra information in antenna indices while different power levels are allocated to users on the same frequency channel. The novelty of this work lies in jointly optimizing spatial, power, and index domains to boost spectral efficiency and energy sustainability simultaneously. Simulation results prove improved channel capacity, superior BER performance, and intelligent power allocation, making this architecture a strong candidate for sustainable and intelligent 6G communication networks.

Authors

C. Amali, J. Srimathi, N. Teena Devi, S. Varsha, M. Vedasri
SRM Valliammai Engineering College, India

Keywords

Sustainable Wireless Communication, 6g Networks, Spectral Efficiency, Energy Efficiency, Multi-User Transmission, Data Capacity Enhancement, Green Communication Systems