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Approaching the Zero-Outage Capacity of MIMO-OFDM Without Water-Filling

Overview This paper shows that the full-blown water-filling procedure is not necessary to approach the zero-outage capacity of the MIMO-OFDM channel; it is sufficient instead to use a combination of eigenbeamforming and a fixed (nonadaptive) rate allocation. The fixed allocation requires no water-filling; instead, it allocates the rates deterministically to match the channel statistics, independent of the particular channel realization. This paper proves that the capacity penalty incurred by the fixed allocation approaches zero as the number of antennas grows large.

Further White Paper Details
Publisher	Georgia Institute of Technology	File Format	PDF
Date Published	April 2005	Downloads	109
Format	White Papers
Topics	Wireless LAN

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