Title :
A design of 2 by 2 unitary space-time codes from sphere packing theory with optimal diversity product of code size 6
Author :
Wang, Haiquan ; Wang, Genyuan ; Xia, Xiang-Gen
Author_Institution :
Dept. of Electr. & Comput. Eng., Delaware Univ., Newark, DE, USA
fDate :
29 June-4 July 2003
Abstract :
In this paper, we propose some designs of 2×2 unitary space-time codes by using sphere packing theory. In particular, we present an optimal 2×2 unitary space-time code of size 6 in the sense that it reaches the maximal possible diversity product for 2×2 unitary space-time code of size 6. The construction and the optimality of the code of size 6 provide the precise value of the maximal diversity product of a 2×2 unitary space-time code of size 6.
Keywords :
space-time codes; code construction; code size; optimal diversity product; sphere packing theory; unitary space-time code design; Artificial intelligence; Constellation diagram; Design engineering; Modulation coding; Signal design; Space time codes; Transmitting antennas; Upper bound;
Conference_Titel :
Information Theory, 2003. Proceedings. IEEE International Symposium on
Print_ISBN :
0-7803-7728-1
DOI :
10.1109/ISIT.2003.1228118
