Title :
Improved Balanced 2n-PSK STTCs for Any Number of Transmit Antennas from a New and General Design Method
Author :
Viland, Pierre ; Zaharia, Gheorghe ; Hélard, Jean-François
Author_Institution :
Inst. for Electron. & Telecommun. of Rennes, Rennes
Abstract :
Recently, it has been established that the best space- time trellis codes (STTCs) belong to a specific class of codes. The codes of this class are called "balanced STTCs" because they use the points of the MIMO constellation with the same probability. Therefore, the search of the best codes can be reduced to this class. This paper presents a new and general method to design 2n-PSK balanced STTCs for any number of transmit antennas. This method is simpler than the first method, which was described only for 4-PSK modulation and can be generalized for any configuration of the space-time trellis encoder. Simulation results of new 4-PSK and 8-PSK balanced codes prove the importance of this class.
Keywords :
MIMO communication; antenna arrays; modulation coding; phase shift keying; space-time codes; transmitting antennas; trellis codes; -PSK balanced codes; 4-PSK modulation; MIMO constellation; balanced STTCs; general design method; space-time trellis codes; transmit antennas; Convolutional codes; Design methodology; Error analysis; Fading; MIMO; Modulation coding; Quadrature phase shift keying; Receiving antennas; Transmitting antennas; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073590
