One of the main objectives in the communications field is to increase the achievable bit-rates. A different paradigm is presented by energy-efficient communications, where the goal is to send a fixed amount of information expending the less possible amount of energy.
We have developed a model for the energy consumption of data transmission over SISO and MIMO links. Our model is the first to systematically include the effects of the randomness of wireless channels. Using this model, we have found that there exists a deep link between energy-efficiency and the multiplexing-diversity trade-off. In effect, when the transmission distance is large then schemes with large diversity gain are the best choice. On the contrary, schemes with large multiplexing gain are optimal for communicating over short link distances. In the talk we show how this general principle rules the optimization of the irradiation power, modulation size, code-rate and MIMO modulation scheme.
and will be held from 16:00-17:00 in room 00.62 at the ESAT building on the Heverlee campus of the KU Leuven:
10 Kasteelpark Arenberg