Title :
Performance analysis of hierarchical codebooks for limited channel feedback in MIMO systems
Author :
Kyeongjun Ko ; Moosun Kim ; Jungtai Kim ; Jungwoo Lee
Abstract :
As the codebook size gets larger, the system performance improves due to the decreased quantization error, but the computational (search) complexity grows exponentially. In order to overcome the complexity problem, codebooks with hierarchical structure have been studied intensively. In this paper, we analyze performance of the hierarchical codebooks mathematically.
Keywords :
MIMO communication; codes; computational complexity; error analysis; feedback; quantisation (signal); MIMO system; computational complexity; hierarchical codebook; limited channel feedback; multiple input multiple output system; quantization error; system performance analysis; Complexity theory; MIMO; Optimized production technology; Performance analysis; Quantization (signal); Receiving antennas; Transmitting antennas;
Conference_Titel :
Information and Communication Technology Convergence (ICTC), 2014 International Conference on
Conference_Location :
Busan
DOI :
10.1109/ICTC.2014.6983176
