Title :
Index Assignment for Quantized Beamforming MIMO Systems
Author :
Zhu, Pengcheng ; Tang, Lan ; Wang, Yan ; You, Xiaohu
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
fDate :
8/1/2008 12:00:00 AM
Abstract :
Index assignment (IA) technique is introduced to quantized beamforming systems. The feedback channel in these systems is modeled as a discrete memoryless channel (DMC), and the diversity and array gains with feedback errors are derived. Based on the analytical results, IA scheme is designed to provide a redundancy-free protection against feedback errors. Simulation results show that good IA scheme improves the array gain and symbol error rate (SER).
Keywords :
MIMO communication; telecommunication channels; MIMO systems; discrete memoryless channel; feedback channel; index assignment; quantized beamforming systems; Array signal processing; Channel state information; Diversity methods; Diversity reception; Error analysis; Feedback; MIMO; Memoryless systems; Protection; Transmitters; Beamforming; MIMO systems; diversity methods; finite-rate feedback; index assignment;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2008.070317
