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Prototype experience for MIMO BLAST over third-generation wireless system
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DOI：10.1109/JSAC.2003.809724.png)
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摘要
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In this paper, a multiple-input-multiple-output (MIMO) extension for a third-generation (3G) wireless system is described. The integration of MIMO concepts within the existing UNITS standard and the associated space-time RAKE receiver are explained. An analysis is followed by a description. of an actual experimental MIMO transmitter and receiver architecture, both realized on digital signal processors (DSPs) and FPGAs within a precommercial OneBTS base station. It uses four transmit and four receive antennas to achieve downlink data rates up to 1 Mb/s per user with a spreading factor of 32 and the UNITS chip rate of 3.84 MHz. Furthermore, different MIMO detectors are evaluated, comparing their performance and complexity. System performance is evaluated through simulations and indoor over-the-air measurements. Capacity and bit-error rate measurement results are presented.
Keyword:
OneBTS
rapid prototyping
third-generation (3G)
UMTS
wireless multiple-input-multiple-output (MIMO)
systems
期刊
IF:
17.2
论文数:
6.4K
被引数:
3.1W
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