Cross-layer interaction between TCP and physical layer

For a satellite system limited in the physical channel bandwidth (in Hz) and in the maximum transmitted power, but with some level of flexibility in the choice of the FEC and modulation scheme, it is possible to find a trade-off between the information bit rate available to TCP and the PER. Although intuitive, the terms of this trade-off need to be rigorously defined. Results are presented for Newreno TCP.