Invention Grant
- Patent Title: Methods to transmit and receive for low dimensions MIMO systems
- Patent Title (中): 低维MIMO系统的发送和接收方法
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Application No.: US13112672Application Date: 2011-05-20
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Publication No.: US08315328B2Publication Date: 2012-11-20
- Inventor: Mohammad A. Khojastepour
- Applicant: Mohammad A. Khojastepour
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Akitaka Kimura; Joseph Kolodka
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04B7/10

Abstract:
Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g., successive precoding strategies) for the design of precoders over a set of parallel channels. Successive beamforming is applied to a narrow band channel model and is also applied for finer quantization of a single beamforming vector (e.g., recursive beamforming). A first embodiment provides the optimal approach with high complexity. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. A low complexity method for precoder selection is also provided wherein a channel representative matrix for the set of parallel channels is determined and successive beamforming on the calculated channel representative is applied.
Public/Granted literature
- US20110274190A1 Methods to Transmit and Receive For Low Dimensions MIMO Systems Public/Granted day:2011-11-10
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