Method and apparatus to balance maximum information rate with quality of service in a MIMO system
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United States of America Patent
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Oct 6, 2009
Grant Date -
Mar 16, 2006
app pub date -
Sep 13, 2004
filing date -
Sep 13, 2004
priority date (Note) -
Expired
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Abstract
symbols through the weaker eigen sub-channel for an auxiliary signal-to-noise ratio; solving for a quality of service QoS of the weaker eigen sub-channel and if the QoS is less than a desired QoS, decreasing the value of N and repeating allocating symbols, determining the probability of reception error and solving for the QoS. Another aspect includes asymmetrically allocating spreading codes to a stronger eigen sub-channel and to a weaker eigen sub-channel such that the stronger eigen sub-channel is allocated more spreading codes than the weaker eigen sub-channel; and transmitting all systematic bits of turbo coded information over the stronger eigen sub-channel.
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