Sphere decoder algorithm and its improvement
Lai Hui-ying · Radio and communications technology · 2006
First introduces two kinds of real sphere decoder algorithms,with a comparison about their performance and complexity. Then,we consider less number of searched elements among candidate symbol sets of each decoded component in medium to high SNR,and improve the better algorithm by sorting the decoded components from the strongest to the weakest,which accelerates the decoding speed and also makes up the lost performance by cutting down the number of searched elements to some extent. Simulation results prove the efficiency of this improved algorithm.