Combining space-time coding and adaptive sectorization using reflectarrays

Geoffrey G. Messier

doi:10.1109/LAWP.2006.876967

2006-01-01

PRE

Geoffrey G. Messier *

Sean V. Hum

M. Okoniewski

DOI：10.1109/LAWP.2006.876967

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摘要

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This letter presents a new code-division multiple-access (CDMA) system architecture that combines space-time block code (STBC) transmission and adaptive sectorization using electronically tunable reflectarrays. The result is a single base station architecture that can use a combination of diversity and spatial division transmission in order to achieve good performance in a wide range of environments. The reflectarray method has the further advantage of implementing both STBC and adaptive sectorization using a single transmit chain and power amplifier. This significantly reduces the cost of deploying a multiple antenna scheme and makes it possible to retrofit combined STBC/adaptive sectorization transmission to existing single antenna base stations already in the field.

Keyword:

code-division multiple-access (CDMA)

error vector magnitude

reflectarrays

space-time coding