Adaptive modulation for MIMO-OFDM systems

@article{Pandharipande2004AdaptiveMF,
  title={Adaptive modulation for MIMO-OFDM systems},
  author={Ashish Pandharipande},
  journal={IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004},
  year={2004},
  volume={2},
  pages={1266-1270 Vol. 2}
}
We consider adaptive modulation in OFDM systems employing multiple transmitter and receiver antennas. The goal is to determine the optimum choice of modulation constellations from among a given set in order to minimize the transmit power, subject to a total bit rate and error rate constraint. A dynamic programming based algorithm, that results in optimum selection of constellation sizes, is proposed to solve the resulting discrete optimization problem.