Computational complexities of sphere decoding according to initial radius selection schemes and an efficient initial radius reduction scheme. - Hee Goo Han; Seong Keun Oh; Seung Joon Lee; Dong Seung Kwon (GLOBECOM, 2005)

A Computationally Efficient Sphere Decoding Algorithm with Smart Radius Reduction Control. - Hee Goo Han; Seong Keun Oh (VTC Spring, 2006)