DocumentCode
2014406
Title
Analysis and design of rotationally invariant trellis codes
Author
Tung, Chien-Cheng ; Livingston, Jay N.
Author_Institution
Texas A&M Univ., College Station, TX, USA
fYear
1993
fDate
29 Nov-2 Dec 1993
Firstpage
128
Abstract
Describes a method for transforming a given trellis code into a rotationally invariant code with little of no loss in performance. The method uses the state transition matrix and the rotational symmetries of the constellation to accomplish this. We demonstrate it by transforming the 8-state Ungerboeck code to a 90° rotationally invariant code with the same free Euclidean distance
Keywords
matrix algebra; phase shift keying; trellis codes; 8-state Ungerboeck code; PSK; free Euclidean distance; rotational symmetries; rotationally invariant trellis codes; state transition matrix; trellis code; Constellation diagram; Convolutional codes; Encoding; Euclidean distance; Lattices; Modulation coding; Performance loss; Phase modulation; Phase shift keying; Quadrature amplitude modulation;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE
Conference_Location
Houston, TX
Print_ISBN
0-7803-0917-0
Type
conf
DOI
10.1109/GLOCOM.1993.318442
Filename
318442
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