Robust Energy Efficiency Optimization for Coordinated Transmission with Transceiver Impairments in Private TD-LTE Wireless Network

Private TD-LTE Wireless Network has been widely utilized in power distribution communication due to its benefits of ease deployment and flexible coverage. Since the dedicated spectrum bandwidth for private TD-LTE network is extremely limited, coordinated transmission is often carried out to enhance system throughput. This paper studies the adverse impacts of transceiver impairments on the performance of coordinated transmission from the perspective of channel estimation and signal transceiver process. A robust optimization scheme utilizing Lagrange Multiplier method is then proposed to maximize the worst energy efficiency caused by the channel estimate error and signal distortion due to transceiver impairments. Simulations are conducted and the results verify the effectiveness of the proposed scheme.