A Novel Efficient Soft Output Demodulation Algorithm for High Order Modulation

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Fourth International Conference on Computer and Information Technology (CIT'04)

Wuhan, China

September 14-September 16

ISBN: 0-7695-2216-5

	ASCII Text	x
	Xinyu Gu, Kai Niu, Weiling Wu, "A Novel Efficient Soft Output Demodulation Algorithm for High Order Modulation," Computer and Information Technology, International Conference on, pp. 493-498, Fourth International Conference on Computer and Information Technology (CIT'04), 2004.

	BibTex	x
	@article{ 10.1109/CIT.2004.1357243, author = {Xinyu Gu and Kai Niu and Weiling Wu}, title = {A Novel Efficient Soft Output Demodulation Algorithm for High Order Modulation}, journal ={Computer and Information Technology, International Conference on}, volume = {0}, year = {2004}, isbn = {0-7695-2216-5}, pages = {493-498}, doi = {http://doi.ieeecomputersociety.org/10.1109/CIT.2004.1357243}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, }

	RefWorks Procite/RefMan/Endnote	x
	TY - CONF JO - Computer and Information Technology, International Conference on TI - A Novel Efficient Soft Output Demodulation Algorithm for High Order Modulation SN - 0-7695-2216-5 SP493 EP498 A1 - Xinyu Gu, A1 - Kai Niu, A1 - Weiling Wu, PY - 2004 KW - null VL - 0 JA - Computer and Information Technology, International Conference on ER -

Xinyu Gu, Beijing University of Posts and Telecommunications

Kai Niu, Beijing University of Posts and Telecommunications

Weiling Wu, Beijing University of Posts and Telecommunications

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/CIT.2004.1357243

Combining Turbo-codes and high order modulation is a simple but effective way to improve the bandwidth efficiency. Since the Turbo decoder requires binary soft decisions as the input information, the demodulator has to provide bit level soft information (LLR) to it. In this paper, a novel simplified algorithm to calculate LLR is developed, which will remarkably reduce the computational complexity, and has nearly no performance loss.

Citation:

Xinyu Gu, Kai Niu, Weiling Wu, "A Novel Efficient Soft Output Demodulation Algorithm for High Order Modulation," cit, pp.493-498, Fourth International Conference on Computer and Information Technology (CIT'04), 2004

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