Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-09-26
2009-11-24
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C455S522000
Reexamination Certificate
active
07623588
ABSTRACT:
A data transmission method in a MIMO-OFDM communication system including at least one receiver for receiving a signal through a plurality of reception antennas and a transmitter for selecting a transmission channel using channel information being fed back from the receiver and transmitting a signal through a plurality of transmission antennas. The method includes selecting a spatial subchannel in which when bits are added by applying at least two spatial modes having different multiplexing gains for an individual subcarrier in a frequency domain, the minimum power increment is required during application of each spatial mode; allocating a spatial mode that requires the minimum total accumulated power, for each subcarrier; and selecting all subcarriers in the order of a subcarrier that requires the minimum power increment.
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Jung et al, Bit and Power Allocation for MIMO-OFDM Systems with Spatial Mode Selection over Frequency-Space-Time-Selective Channels, Sep. 26-29, 2004, IEEE, pp. 3404-3408.
Jung Koo-Chul
Lee Kwang-Bok
Nam Seung-Hoon
Park Chang-Soon
Aghdam Freshteh N
Fan Chieh M.
Samsung Electronics Co,. Ltd
Seoul National University Industry Foundation
The Farrell Law Firm, LLP
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