TY - JOUR
T1 - Novel constructions of improved square complex orthogonal designs for eight transmit antennas
AU - Tran, Le Chung
AU - Wysocki, Tadeusz A.
AU - Seberry, Jennifer
AU - Mertins, Alfred
AU - Adams, Sarah Spence
PY - 2009/10/8
Y1 - 2009/10/8
N2 - Constructions of square, maximum rate complex orthogonal space-time block codes (CO STBCs) are well known, however codes constructed via the known methods include numerous zeros, which impede their practical implementation. By modifying the Williamson and Wallis-Whiteman arrays to apply to complex matrices, we propose two methods of construction of square, order-4n CO STBCs from square, order-n codes which satisfy certain properties. Applying the proposed methods, we construct square, maximum rate, order-8 CO STBCs with no zeros, such that the transmitted symbols are equally dispersed through transmit antennas. Those codes, referred to as the improved square CO STBCs, have the advantages that the power is equally transmitted via each transmit antenna during every symbol time slot and that a lower peak-to-average power ratio (PAPR) is required to achieve the same bit error rates as the conventional CO STBCs with zeros.
AB - Constructions of square, maximum rate complex orthogonal space-time block codes (CO STBCs) are well known, however codes constructed via the known methods include numerous zeros, which impede their practical implementation. By modifying the Williamson and Wallis-Whiteman arrays to apply to complex matrices, we propose two methods of construction of square, order-4n CO STBCs from square, order-n codes which satisfy certain properties. Applying the proposed methods, we construct square, maximum rate, order-8 CO STBCs with no zeros, such that the transmitted symbols are equally dispersed through transmit antennas. Those codes, referred to as the improved square CO STBCs, have the advantages that the power is equally transmitted via each transmit antenna during every symbol time slot and that a lower peak-to-average power ratio (PAPR) is required to achieve the same bit error rates as the conventional CO STBCs with zeros.
UR - http://www.scopus.com/inward/record.url?scp=70349622773&partnerID=8YFLogxK
U2 - 10.1109/TIT.2009.2027489
DO - 10.1109/TIT.2009.2027489
M3 - Journal articles
AN - SCOPUS:70349622773
SN - 0018-9448
VL - 55
SP - 4439
EP - 4448
JO - IEEE Transactions on Information Theory
JF - IEEE Transactions on Information Theory
IS - 10
ER -