Daniel J. Louw

Learn More
In this paper, a reduced complexity soft-input soft-output MIMO detector is presented. The detector is intended to be used in conjunction with an error correction code. The detector combines a Sphere Decoder with a Hopfield network to calculate a max-log-map approximation. It is then combined with the error correction code in an iterative structure(More)
  • D J Louw
  • 2002
The author discusses the relationship between a pastoral hermeneutics and the current social context as determined by international communication and globalization. He explores the influence of telecommunications on the human quest for meaning and the implication of this for pastoral care and counseling. A paradigm shift is proposed in terms of care to the(More)
In this paper, the effects of quantization on the achievable diversity of a linearly precoded Space-Time-Frequency (STF) and Space-Frequency (SF) coded MIMO-OFDM system are studied. A relationship between the maximum achievable diversity in a linearly precoded system and the number of quantization bits is derived. The performance of two different STF codes(More)
Single view distributed video coding (DVC) is a coding method that allows for the computational complexity of the system to be shifted from the encoder to the decoder. This property promotes the use of DVC in systems where processing power or energy use at the encoder is constrained. Examples include wireless devices and surveillance. This paper extends on(More)
  • D J Louw
  • 1989
The most important question in biomedical ethics is really whether a researcher should do what he can do. The interventional model of modern medicine, which makes medical decisions on medical grounds, can threaten human values. In a Christian perspective we are responsible to God for our humanity. Surrogate motherhood is a very complicated question which(More)
  • 1