An Enhanced Algorithm for MIMO-OFDM System Detection: Sphere Decoding Approach

This article introduces an improved detection algorithm for MIMO-OFDM systems—the sphere decoding algorithm. The implementation covers VB sphere decoding, CL sphere decoding, and enhanced variants (KCL and CL-MMSE algorithms). The simulation code can generate performance results, demonstrating algorithm effectiveness through MATLAB implementation with key functions handling signal constellation, search radius optimization, and metric calculations.