Performance of angle feedback vs. shuffling scheme for DSTTD systems

Authors:
Qi Zhang;Ju Liu;Peng Lan;Lei Chen
Affiliations:
School of Information Science and Engineering, Shandong University, Jinan, China and State Key Lab. of Mobile Communications, Southeast University, Nanjing, China;School of Information Science and Engineering, Shandong University, Jinan, China;School of Information Science and Engineering, Shandong University, Jinan, China;School of Information Science and Engineering, Shandong University, Jinan, China
Venue:
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Year:
2009

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Abstract

Transmit antenna shuffling (TAS) has been used widely in Double Space Time Transmit Diversity (DSTTD) systems for performance improvement. In this paper, an angle feedback and its feedback selection criterion applied in a space time coding scheme are proposed for DSTTD systems. Compared with the existing TAS scheme, according to the analysis of system, the proposed scheme has lower realization complexity. Simulations show that the proposed scheme with 2-bit angle feedback achieves almost the same performance of DSTTD systems with TAS scheme which requires 3-bit feedback.