Title :
CTH10-1: Optimization of Coding Gain for Full-Response CPM Space-Time Codes
Author :
Zajic, Alenka G. ; Stuber, Gordon L.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
Conditions are derived under which M-ary full-response CPM space-time codes will attain full spatial diversity and optimal coding gain. General code construction rules are desirable due to the nonlinearity and inherent memory of CPM signals which make manual design or computer search difficult. Optimization of the coding gain for CPM space-time codes is shown to depend on the CPM frequency/phase shaping pulse, modulation index, and codewords. The modulation indices and phase shaping functions that optimize the coding gain are specified. Finally, optimization of ST-CPM codewords is discussed.
Keywords :
continuous phase modulation; diversity reception; modulation coding; optimisation; space-time codes; CPM frequency-phase shaping pulse; code construction rules; continuous phase modulation; full-response CPM space-time codes; modulation index; optimal coding gain; spatial diversity; Continuous phase modulation; Euclidean distance; Frequency; Modulation coding; Phase modulation; Pulse shaping methods; Signal design; Signal processing; Space time codes; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.87
