Title :
New group product differential unitary space-time codes with simplified design and detection
Author :
Smith, David B. ; Hanlen, Leif W.
Author_Institution :
Networked Syst., NICTA, Canberra, ACT, Australia
fDate :
12/1/2008 12:00:00 AM
Abstract :
A new differential unitary space-time code is presented that is a product of group diagonal matrices of different orders and a unitary Vandermonde matrix. Design is simplified through properties of the union bound on block error probability for the presented code. Detection is simplified via properties of the diagonal matrices which form a cyclic group. Superior performance to best known differential space-time codes is shown, particularly for 3, 5 and 6 transmit antennas.
Keywords :
antenna arrays; block codes; channel coding; cyclic codes; error statistics; group codes; matrix multiplication; product codes; signal detection; space-time codes; wireless channels; block error probability; cyclic group; group diagonal matrix product; group product differential unitary space-time code; multiple transmit antenna; signal detection; unitary Vandermonde matrix; wireless channel; AWGN; Constellation diagram; Decoding; Fading; MIMO; Receiving antennas; Signal design; Space time codes; Transmitters; Transmitting antennas; Differential unitary space-time codes, multiple transmit antennas, simplified detection.;
Journal_Title :
Wireless Communications, IEEE Transactions on
Conference_Location :
12/1/2008 12:00:00 AM
DOI :
10.1109/T-WC.2008.071042
