Daniel K. C. So

Learn More
The energy consumption of information and communications technology (ICT) has recently become an economic issue for operators as well as a big challenge for sustainable development. The energy consumption of the ICT industry contributes about 3 percent to the global annual electricity bill, and the amount is rising at the speed of 15–20 percent each year(More)
Characterizing the fundamental energy efficiency (EE) performance of multiple-input multiple-output interfering broadcast channels (MIMO-IFBC) is important for the design of green wireless system. In this paper, we propose a new network architecture proposition based on EE maximization for multicell MIMO-IFBC within the context of interference alignment(More)
In this paper, we investigate joint antenna selection and spatial switching (SS) for quality-of-service (QoS)-constrained energy efficiency (EE) optimization in a multiple-input multiple-output (MIMO) simultaneous wireless information and power transfer (SWIPT) system. A practical linear power model taking into account the entire transmit-receive chain is(More)
Spectral efficiency (SE) and energy efficiency (EE) are the main metrics for designing wireless networks. Rather than focusing on either SE or EE separately, recent works have focused on the relationship between EE and SE and provided good insights into the joint EE-SE tradeoff. However, such works have assumed that bandwidth are fully occupied regardless(More)