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High-Rate Codes that are Linear in Space and Time (2000)
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| Venue: | IEEE Trans. Inform. Theory |
| Citations: | 422 - 13 self |
BibTeX
@ARTICLE{Hassibi00high-ratecodes,
author = {Babak Hassibi and Bertrand Hochwald},
title = {High-Rate Codes that are Linear in Space and Time},
journal = {IEEE Trans. Inform. Theory},
year = {2000},
volume = {48},
pages = {1804--1824}
}
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Abstract
Multiple-antenna systems that operate at high rates require simple yet effective space-time transmission schemes to handle the large traffic volume in real time. At rates of tens of bits/sec/Hz, V-BLAST, where every antenna transmits its own independent substream of data, has been shown to have good performance and simple encoding and decoding. Yet V-BLAST suffers from its inability to work with fewer receive antennas than transmit antennas---this deficiency is especially important for modern cellular systems where a basestation typically has more antennas than the mobile handsets. Furthermore, because V-BLAST transmits independent data streams on its antennas there is no built-in spatial coding to guard against deep fades from any given transmit antenna. On the other hand, there are many previously-proposed space-time codes that have good fading resistance and simple decoding, but these codes generally have poor performance at high data rates or with many antennas. We propose a high-rate coding scheme that can handle any...
Keyphrases
high-rate code modern cellular system high rate high data rate high-rate coding scheme good fading resistance built-in spatial coding v-blast transmits independent data stream v-blast suffers mobile handset bit sec hz simple encoding real time transmit antenna good performance receive antenna independent substream large traffic volume many antenna deep fade multiple-antenna system poor performance effective space-time transmission scheme simple decoding many previously-proposed space-time code
