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Antenna selection with superposition for 4 × 2 DSTTD systems
- Authors
- Joung, J.; Sayed, A.H.; Lee, Y.H.
- Issue Date
- Jul-2009
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Antenna selection; Antenna shuffling; Double space-time transmit diversity (DSTTD); Superposition
- Citation
- IEEE Communications Letters, v.13, no.7, pp 483 - 485
- Pages
- 3
- Journal Title
- IEEE Communications Letters
- Volume
- 13
- Number
- 7
- Start Page
- 483
- End Page
- 485
- ISSN
- 1089-7798
1558-2558
- Abstract
- From 1820 4 × 4 binary matrices, 253 binary preprocessing matrices are designed for double space-time transmit diversity (DSTTD) systems with two 2 × 2 space-time block code (STBC) encoders. Among them, six matrices yielding the highest average minimum-post-processing SNR are proposed from numerical experimentation under uncorrelated channel conditions. The proposed preprocessing performs a superposition of the first and second (second and first) STBC symbols and a selection of two transmit antennas. Simulation results show that the proposed method provides 1.7 dB (1.8 dB) SNR improvement in uncorrelated (correlated) channel environment at 10-3 bit error rate over the conventional antenna shuffling method. © 2009 IEEE.
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