Quasi-Orthogonal Space-Time-Frequency Trellis Codes for Mimo-OFDM Systems

Abstract

The main objective of this project is to design the full-rate\nSpace-Time-Frequency Trellis code (STFTC), which is based on Quasi-Orthogonal\ndesigns for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division\nMultiplexing (OFDM) systems. The proposed Quasi-Orthogonal Space-Time-Frequency\nTrellis code combines set partitioning and the structure of quasi-orthogonal\nspace-frequency designs in a systematic way. In addition to multipath diversity\nand transmit diversity, the proposed code provides receive diversity, array\ngain, and achieve high-coding gain over a frequency selective fading channel.\nAs simulation results demonstrate, the code outperforms the existing\nQuasi-Orthogonal Space-Time-Frequency Trellis codes in terms of frame error\nrate performance.\n