Topic: Adaptable Channel Decomposition
Speaker: Yi Jiang
Room: NEB 201
Time: 5:00pm~6:00pm,  3/7/2005, Monday

Abstract:
In this talk I will introduce three novel MIMO transceiver designs, i.e.,
the geometric mean decomposition (GMD) scheme, the uniform channel
decomposition (UCD) scheme, and  the adaptable channel decomposition (ACD)
scheme. All these schemes deploy either a decision feedback equalizer (DFE)
at the receiver or a dirty paper precoder (DPP) at the transmitter. These
transceiver designs represent a paradigm shift from the conventional linear
MIMO transceiver designs to the nonlinear ones. The superior performance of
the GMD and UCD schemes unveil the practical significance of making
transmitter and receiver cooperate with each other. That is, such
cooperations facilitate achieving the optimal tradeoff between the diversity
gain and multiplexing promised by the MIMO communication theory. The ACD
scheme represents a unifying solution to a considerablely wide range of
problems, including designing the precoder for orthogonal frequency division
multiplexing (OFDM) communications and the optimal code division multiple
access (CDMA) sequence design.