DocumentCode
2017347
Title
Optimum Bit Detection of Quadrature Amplitude Modulation in Self Correlated Gaussian Noise Channel
Author
Mansoor, Atif Bin ; Mansoor, Awais ; Shah, Syed Ismail
Author_Institution
Coll. of Aeronaut. Eng., Nat. Univ. of Sci. & Technol.
fYear
2005
fDate
24-25 Dec. 2005
Firstpage
1
Lastpage
4
Abstract
This paper discusses the optimum bit detection for coherent QAM (quadrature amplitude modulation) in the presence of colored Gaussian noise. We employ gray-mapping for constellations, and derive the log-likelihood ratio (LLR) for each bit forming the symbol. Using LLR, we derive the average bit error probability for individual bits. We further investigate the equalization methods under colored noise to facilitate optimum detection
Keywords
Gaussian channels; Gaussian noise; correlation methods; equalisers; error statistics; maximum likelihood detection; quadrature amplitude modulation; Gaussian noise channel; bit error probability; gray-mapping; log-likelihood ratio; optimum bit detection; quadrature amplitude modulation; Additive noise; Additive white noise; Colored noise; Digital communication; Digital modulation; Error probability; Filters; Gaussian noise; Matrices; Quadrature amplitude modulation;
fLanguage
English
Publisher
ieee
Conference_Titel
9th International Multitopic Conference, IEEE INMIC 2005
Conference_Location
Karachi
Print_ISBN
0-7803-9429-1
Electronic_ISBN
0-7803-9430-5
Type
conf
DOI
10.1109/INMIC.2005.334450
Filename
4133465
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