Title :
Bit error rate reduction of TCM systems using linear scramblers
Author :
Gray, Paul K. ; Rasmussen, Lars K.
Author_Institution :
Inst. for Telecommun. Res., South Australia Univ., The Levels, SA, Australia
Abstract :
It is shown that the use of Gray scramblers and Gray mapped signal sets are equivalent. A search is performed for better scramblers, including a search for scramblers with memory. Memoryless scramblers are found to give best performance and an explanation for this is given
Keywords :
Gray codes; cryptography; error statistics; memoryless systems; search problems; trellis coded modulation; Gray mapped signal sets; Gray scramblers; TCM systems; bit error rate reduction; linear scramblers; memoryless scramblers; performance; search; Australia; Bit error rate; Circuits; Combinatorial mathematics; Convolutional codes; Cost function; Encoding; Search methods; Signal generators; Signal mapping;
Conference_Titel :
Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on
Conference_Location :
Whistler, BC
Print_ISBN :
0-7803-2453-6
DOI :
10.1109/ISIT.1995.531166
