Maximum-Weight Scheduling with Hierarchical Modulation

Yalcin A. Z., YÜKSEL TURGUT A. M., Onat F. A., Aktas D., Numanoglu T., Kolagasioglu A. E.

Iran Workshop on Communication and Information Theory (IWCIT), Tehran, Iran, 7 - 08 May 2014 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/iwcit.2014.6842509
  • City: Tehran
  • Country: Iran
  • Middle East Technical University Affiliated: No


In this paper, hierarchical modulation is used in conjunction with maximum-weight scheduling to achieve lower transmission delays. Via hierarchical modulation, the scheduled user has the option to transmit to two users simultaneously. The results are compared with classical single-layered transmission. Simulation results show that packet transmission delays are lowered without any loss in throughput. In addition to this, it is demonstrated that hierarchical modulation is robust in point-to-point settings, and prove to be as good as adaptive modulation techniques, without the need for transmitter side channel state information.