Transceiver design in multiuser MISO systems with imperfect transmit CSI | IEEE Conference Publication | IEEE Xplore

Transceiver design in multiuser MISO systems with imperfect transmit CSI


Abstract:

Multiple transmit antennas can be employed in a downlink channel to serve multiple users under the assumption of perfect channel state information (CSI) of all users at t...Show More

Abstract:

Multiple transmit antennas can be employed in a downlink channel to serve multiple users under the assumption of perfect channel state information (CSI) of all users at the base station. In practice, however, the channel knowledge available at the base station is not perfect. For instance, in case of a time division duplex (TDD) system, the transmit CSI is the estimated uplink channel. On the other hand, in a frequency division duplex (FDD) system, feedback from the users is required to obtain transmit CSI. In this case, we assume the transmit CSI consists of a quantized version of the normalized estimated channel vector and the statistics of the channel norm of each user. In this work we consider the transceiver design of the downlink of a multiuser MISO system based on the minimum mean square error (MMSE) criterion with imperfect CSI as discussed above.
Date of Conference: 23-24 February 2010
Date Added to IEEE Xplore: 29 April 2010
ISBN Information:
Conference Location: Bremen, Germany

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