Closed-loop STBC for two transmit antenna MIMO systems with 1-bit feedback

Author

Van Bien Pham ; Weixing Sheng ; Xiaofeng Ma ; Hao Wang

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

fYear

2011

fDate

2-4 Aug. 2011

Firstpage

216

Lastpage

219

Abstract

The closed-loop multiple-input multiple-output (C-MIMO) systems with feedback channel significantly improve performance of systems. There are many recent researches proposed space time block codes (STBCs) for closed-loop MIMO systems which have number of transmit antennas greater 2. However, to the best of our knowledge, the STBC for closed-loop MIMO systems with 2 transmit antennas is not available. In this paper, we present a STBC rate of one for C-MIMO systems with two transmit antennas. By rotating constellation and coordinate interleaving symbols in codeword, the proposed code also achieves full diversity and linear decoding complexity as Alamouti code. In addition, the proposed code with 1-bit feedback achieves a significant improvement in performance and outperforms open-loop Alamouti code.

Keywords

MIMO communication; antenna arrays; closed loop systems; linear codes; space-time block codes; transmitting antennas; Alamouti code; closed-loop MIMO systems; closed-loop STBC; coordinate interleaving symbols; feedback channel; linear decoding complexity; multiple-input multiple-output systems; rotating constellation; space time block codes; transmit antennas; two transmit antenna; Block codes; MIMO; Maximum likelihood decoding; Receiving antennas; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2011 International Conference on

Conference_Location

Da Nang

ISSN

2162-1020

Print_ISBN

978-1-4577-1206-7

Type

conf

DOI

10.1109/ATC.2011.6027470

Filename

6027470