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2010

Transmit diversity vs. spatial multiplexing in modern MIMO systems

8 years 10 months ago
Transmit diversity vs. spatial multiplexing in modern MIMO systems
A contemporary perspective on transmit antenna diversity and spatial multiplexing is provided. It is argued that, in the context of most modern wireless systems and for the operating points of interest, transmission techniques that utilize all available spatial degrees of freedom for multiplexing outperform techniques that explicitly sacrifice spatial multiplexing for diversity. Reaching this conclusion, however, requires that the channel and some key system features be adequately modeled and that suitable performance metrics be adopted; failure to do so may bring about starkly different conclusions. As a specific example, this contrast is illustrated using the 3GPP Long-Term Evolution system design.
A. Lozano, N. Jindal
Added 22 May 2011
Updated 22 May 2011
Type Journal
Year 2010
Where TWC
Authors A. Lozano, N. Jindal
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