<P>We investigate channel feedback optimization for network multiple-input-multiple-output (MIMO) systems. We consider feedback channel selection to exploit channel asymmetry inherent to network MIMO systems and consider feedback bit allocation,...
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
https://www.riss.kr/link?id=A107753221
2012
-
SCOPUS,SCIE
학술저널
3315-3321(7쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>We investigate channel feedback optimization for network multiple-input-multiple-output (MIMO) systems. We consider feedback channel selection to exploit channel asymmetry inherent to network MIMO systems and consider feedback bit allocation,...
<P>We investigate channel feedback optimization for network multiple-input-multiple-output (MIMO) systems. We consider feedback channel selection to exploit channel asymmetry inherent to network MIMO systems and consider feedback bit allocation, which allows an unequal number of feedback bits to be allocated to users according to the selected channel condition. We derive the upper bound of the expected rate loss due to channel selection and quantization and propose two algorithms referred to as successive algorithm and iterative algorithm, which jointly optimize the channel selection and bit allocation. Through computer simulations, we show that the proposed algorithms provide a significant amount of performance gain with greatly reduced complexity, compared with an exhaustive search.</P>
Performance Analysis of Adaptive Decode-and-Forward Cooperative Single-Carrier Systems
A Bidirectional Successive Detection Technique for Asynchronous OFDMA-Based Wireless Mesh Networks