Resource Allocation for Uplink SCMA NOMA in Heterogeneous Networks. - Simon Chege; Tom Walingo (AFRICON, 2019)

Energy efficient resource allocation for uplink hybrid power domain sparse code nonorthogonal multiple access heterogeneous networks with statistical channel estimation. - Simon Chege; Tom Walingo (Trans. Emerg. Telecommun. Technol., 2021)

MIMO Hybrid PD-SCMA NOMA Uplink Transceiver System. - Simon Chege; Tom Walingo (IEEE Access, 2022)

Multiplexing Capacity of Hybrid PD-SCMA Heterogeneous Networks. - Simon Chege; Tom Walingo (IEEE Trans. Veh. Technol., 2022)

Codebook Design for PD-SCMA NOMA Systems. - Simon Chege; Tom Walingo; Foued Derraz (IEEE Access, 2023)

Anomaly Detection in PD-NOMA Cognitive Radio IoT Networks. - Gilbert Machani; Simon Chege; Tom Walingo (WIDECOM, 2024)

Deep Learning Multi-User Detection for PD-SCMA. - Simon Chege; Tom Walingo (IEEE Access, 2024)