Optimum Selection of Modes Set for discrete Link Adaptation

توضیح سیویلیکا: 39244 .] complexity issues and limited feedback rate strictlyconstraint the number of transmission modes in discrete linkadaptation. A new algorithm is designed for selecting an optimumset of modes out of all the possible transmission modes based onthe link’s characteristics and the constraints. The design goal is tomaximize the average spectral efficiency and the selection is doneusing a combination of nonlinear quantization and integerprogramming. As numerical evaluations for adaptiveconvolutional coded, QAM modulated transmission show,performance of the proposed scheme is considerably improved incomparison with the benchmark schemes.

Keywords:

Link Adaptation , Adaptive Modulation and Coding , integer programming