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Recent Advances in Communications and Networking Technology (Discontinued)


ISSN (Print): 2215-0811
ISSN (Online): 2215-082X

Orthogonal Stbcs for Five, Six and Seven Transmit Antennas

Author(s): Nimmagadda S. Murthy, Sajja Srigowri and Bhima P. Rao

Volume 3, Issue 2, 2014

Page: [93 - 97] Pages: 5

DOI: 10.2174/2215081104666150331231218

Price: $65


Alamouti proposed orthogonal STBCS for two transmit antennas with code rate one. Tarkoh investigated for three to eight transmit antennas with code rate 1/2. Jafarkhni proposed for non orthogonal STBCS four transmit antennas with code rate one. The theory of space-time block codes was further developed by Weifen Su and Xian-Gen Xia. They defined space time block codes in terms of orthogonal code matrices. The properties of these matrices ensure code rate of 7/11 and 3/5 for 5 and 6 transmit antennas. For five, six, seven and eight transmit antennas, four generalized complex orthogonal space-time block codes of code rate with 2/3, 2/3,5/8, and 5/8 proposed recently . This paper intends new matrix GCOD Space time block codes for five, six, seven transmit antennas which can send 8 information symbols in a block of 8 channels with code rate of 1.

Keywords: Complex orthogonal designs, decoding delay, MIMO technologies, space time block codes, transmit diversity, transmit antennas.

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