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De-hyping transmit diversity in modern MIMO cellular systems
Jindal, Nihar; Lozano Solsona, Àngel
Universitat Pompeu Fabra
A contemporary perspective on the tradeoff between transmit antenna diversity and spatial multi-plexing is provided. It is argued that, in the context of modern cellular systems and for the operating points of interest, transmission techniques that utilize all available spatial degrees of freedom for multiplexingoutperform techniques that explicitly sacrifice spatialmultiplexing for diversity. Reaching this conclusion, however, requires that the channel and some key system features be adequately modeled; 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.
Comunicació presentada en la Global Telecommunications Conference (GLOBECOM '09), celebrada els dies 30 de novembre, 1, 2, 3 i 4 de desembre de 2009 a Honolulu, Hawaii (EUA), organitzada per l’Institute of Electrical and Electronics Engineers (IEEE).
02-07-2013
Sistemes MIMO
Comunicacions mòbils, Sistemes de
Telefonia mòbil
GSM (Global System Mobile)
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