Link Layer Abstraction in MIMO-OFDM System

Link layer abstraction is crucial to the cross-layer simulation and design as the interface. EESM and MIESM are two kinds of algorithms which account for the instantaneous channel realization and other configurations and obtain the estimated packet error rate correspondingly. Enhanced versions of the algorithms with weighted training are brought out in this paper, which have shown great improvements compared to the original algorithms. Plenty of simulations have been made for verifications and the results show that the enhanced abstraction algorithms can reflect the performance of the link layer of MIMO-OFDM system with high precision for higher layer simulations.