Bell Laboratories Layered Space-Time
- Bell Laboratories Layered Space-Time
Bell Laboratories Layered Space-Time (BLAST) is a transceiver architecture for offering spatial multiplexing over multiple-antenna wireless communication systems. Such systems have multiple antennas at both the transmitter and the receiver in an effort to exploit the many different paths between the two in a highly-scattering wireless environment. BLAST was developed by Gerard Foschini at Lucent Technologies' Bell Laboratories (now Alcatel-Lucent Bell Labs). By careful allocation of the data to be transmitted to the transmitting antennas, multiple data streams can be transmitted simultaneously within a single frequency band — the data capacity of the system then grows directly in line with the number of antennas (subject to certain assumptions). This represents a significant advance on current, single-antenna systems. [#References| [1]
ee also
*Space–time code — a means for using multiple antennas to improve reliability rather than data-rate.
*Telecommunication
References
#cite journal | author=Gerard. J. Foschini | title=Layered Space-Time Architecture for Wireless Communication in a Fading Environment When Using Multi-Element Antennas | journal=Bell Laboratories Technical Journal | year=1996 | volume=October | pages=41–59|url = http://www.ece.ualberta.ca/~hcdc/Library/StCommClass/Fosc96.pdf
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