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Wireless access networks over high speed railway (HSR) encounters many challenges, e.g., the fluctuations of wireless channels, frame synchronization, and geographical obstacles. Since increasing signal quality can bring benefit against channel impairments, the key to solve these challenges is to enhance radio signal strength over HSR. Combining radio over fiber with distributed antennas system (RoF-DAS)...
In this paper, the energy efficiency (EE) of distributed antenna system (DAS) with multiple receive antennas is investigated over composite fading channel that takes the path loss, shadow fading and Rayleigh fading into account. Our aim is to maximize EE which is defined as the ratio of the transmission rate to the total consumed power under the constraints of maximum transmit power of each remote...
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