A New Transmit Scheme Combining Beamforming with Space-Time Block Coding

Author

Lin, Min ; Yang, Luxi ; Zhu, Wei-Ping ; Li, Min ; Li, Bin

Author_Institution

Sch. of Inf. Sci. & Eng., Southeast Univ., Jiangsu

fYear

2008

Firstpage

3961

Lastpage

3965

Abstract

In this paper, a new transmit scheme combining beamforming (BF) with space-time block coding (STBC) is proposed for correlated fading channels. Based on maximizing the output mean signal-to-noise ratio (SNR) at the receiver, the transmitter BF weight vectors are first derived. Then, utilizing the minimal bit error rate (BER) upper bound as the design criterion, a simple power allocation algorithm is developed. Next, the BER performance of the system with the proposed transmit scheme is analyzed by considering an M-QAM constellation. Finally, computer simulation results are given to verify the effectiveness of the proposed scheme.

Keywords

block codes; error statistics; fading channels; quadrature amplitude modulation; space-time codes; M-QAM constellation; correlated fading channels; minimal bit error rate; output mean signal-to-noise ratio; power allocation algorithm; space-time block coding; transmit scheme; transmitter BF weight vectors; Algorithm design and analysis; Array signal processing; Bit error rate; Block codes; Computer simulation; Fading; Performance analysis; Signal to noise ratio; Transmitters; Upper bound;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2008. ICC '08. IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2075-9

Electronic_ISBN

978-1-4244-2075-9

Type

conf

DOI

10.1109/ICC.2008.744

Filename

4533780