Abstract
In this paper, we analyze the diversity order of the optimal transmit antenna selection (TAS) for spatial multiplexing (SM) systems with maximum-likelihood (ML) detection. By deriving the upper and lower bounds on the diversity order, we prove that the optimal TAS of selecting L antennas among M transmit antennas in the SM system with M transmit antennas and N receive antennas obtains a diversity order of N(M-L + \hbox{1}), which coincides with the well-known results of the respective diversity orders MN and N for the special cases when L = \hbox{1} and L = M. Monte Carlo simulations confirm our theoretical result.
Original language | English |
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Article number | 6522138 |
Pages (from-to) | 4653-4658 |
Number of pages | 6 |
Journal | IEEE Transactions on Vehicular Technology |
Volume | 62 |
Issue number | 9 |
DOIs | |
State | Published - 2013 |
Keywords
- Diversity order
- maximum likelihood (ML)
- multiple-input multiple-output
- spatial multiplexing (SM)
- transmit antenna selection (TAS)