This paper, we introduce two new reduced-complexity algorithms on sphere decoding (SD). The two algorithms execute in different ways to avoid unnecessary recomputations. Compared with the existing modified SD, our algorithms save a considerable amount of unnecessary computation and also perform exact maximum-likelihood (ML) detection.
['Jian Li', 'Xian-Da Zhang', 'Qiubin Gao']
Reduced complexity sphere decoding algorithm for V-BLAST systems