Project Description:
Worked on the design of transmit pre-coder and CSI feedback schemes for multiuser MIMO downlink transmission
Proposed cross-layer scheduling schemes to achieve spatial multiplexing in a multiuser MIMO downlink channel
Proposed efficient feedback schemes for multiuser channel state information (CSI) feedback with constraint rate
Proposed a quantizer design approach with an iterative codebook deign algorithm to exploit multiuser diversity
This research led to total 10 inventions in the field with corresponding patents listed below
Related Publications:
J. Zheng, C. Zhang, and P. van Rooyen, "Method and system for a simplified user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.
J. Zheng, C. Zhang, and P. van Rooyen, "Method and system for an improved user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.
J. Zheng, C. Zhang, S. Catreux-Erceg, V. Erceg, P. Roux, and P. van Rooyen, "A double search algorithm of user group selection for multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.
J. Zheng, C. Zhang, and P. van Rooyen, "Method and system for a double search user group selection scheme with range reduction in TDD multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.
J. Zheng, C. Zhang, and P. van Rooyen, "Channel quantization for multiuser diversity," filed by Broadcom Inc., September 2005.
C. Zhang, J. Zheng, S. Catreux-Erceg, V. Erceg, P. Roux, and P. van Rooyen, "Method and system for a range reduction scheme for user selection in a multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.
C. Zhang, J. Zheng, and P. van Rooyen, "A double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback," filed by Broadcom Inc., September 2005.
C. Zhang, J. Zheng, and P. van Rooyen, "Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.
C. Zhang, J. Zheng, and P. van Rooyen, "Method and system for a greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback," filed by Broadcom Inc., September 2005.
C. Zhang, J. Zheng, S. Catreux-Erceg, V. Erceg, P. Roux, and P. van Rooyen, "Method and system for finding a threshold for semi-orthogonal user group selection in multiuser MIMO downlink transmission," filed by Broadcom Inc., September 2005.