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X. W. Chang and X. H. Yang, “A new fast generalized sphere decoding algorithm for underdetermined sphere decoding algorithm for underdetermined MIMO systems,” 23rd Biennial symposium on Communications, Kingston, ON, Canada, pp. 18–21, June 2006.

has been cited by the following article:

• TITLE: Selection of Design Parameters for Generalized Sphere Decoding Algorithms

  AUTHORS: Ping WANG, Tho LE-NGOC

  KEYWORDS: Sphere Decoding (SD), Generalized Sphere Decoding (GSD), Maximum-likelihood (ML), Integer Least-Square (ILS), MIMO, λ-GSD, Multi-User Detection (MUD), CDMA, MC-CDMA

  JOURNAL NAME: International Journal of Communications, Network and System Sciences, Vol.3 No.2, March 1, 2010

  ABSTRACT: Various efficient generalized sphere decoding (GSD) algorithms have been proposed to approach optimal ML performance for underdetermined linear systems, by transforming the original problem into the full-column-rank one so that standard SD can be fully applied. However, their design parameters are heuristically set based on observation or the possibility of an ill-conditioned transformed matrix can affect their searching efficiency. This paper presents a better transformation to alleviate the ill-conditioned structure and provides a systematic approach to select design parameters for various GSD algorithms in order to high efficiency. Simulation results on the searching performance confirm that the proposed techniques can provide significant improvement.