Title :
On Improving 4 Ã\x97 4 Space-Time Codes
Author :
Oggier, Frédeérique ; Berhuy, Greégory
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
In this work, we discuss the construction of 4 times 4 space-time codes for coherent MIMO channels. Recently, the so-called perfect space-time codes have been introduced. These are algebraic codes, which satisfy a plethora of properties, that makes them particularly efficient. They are available for 2,3,4 and 6 antennas, and the optimal perfect code for 2 antennas is known. In an attempt to find the optimal perfect code for 4 antennas, we found and present here a (non perfect) code construction that exhibits better performance than 4 times 4 known codes.
Keywords :
MIMO communication; algebraic codes; space-time codes; MIMO channels; algebraic codes; antenna arrays; nonperfect code; space-time codes; Algebra; Lattices; MIMO; Mathematics; Space technology; Space time codes;
Conference_Titel :
Signals, Systems and Computers, 2006. ACSSC '06. Fortieth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
1-4244-0784-2
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2006.354962
