On the Performance of the Two-Cell Cooperative Single User (CSU) MIMO System with Hybrid Feedback
スポンサーリンク
概要
- 論文の詳細を見る
Achievable rates of two different transmission schemes of the two-cell cooperative single user (CSU) multi-input multi-output (MIMO) system with hybrid feedback is studied, in which one cell has the channel state information (CSI) from a mobile station (MS) and the other has channel covariance information (CCI) from it. Disjoint encoding over two base stations (BSs) is shown to achieve the capacity of the CSU-MIMO with hybrid feedback. Rather than finding an optimal transmission scheme, a suboptimal one is proposed such that the transmit directions of the BSs with CSI and CCI are eigen directions of the instantaneous channel correlation matrix and transmit covariance matrix respectively. The optimum power allocation for these transmit directions is derived as an iterative power allocation (IPA) similar to that of the MIMO multiple access channel (MAC) with CCI only. We also propose a simple disjoint power allocation (DPA). The simulation results show that the proposed transmit directions and IPA for the CSU-MIMO with hybrid feedback outperforms the MIMO-MAC with CCI only, while the DPA achieves almost the same performance as the IPA, only when the SNR is low.
著者
-
Kim Dong
School Of Electrical And Electronic Engineering Chung-ang Univ.
-
YANG Janghoon
Dept. of Newmedia, KGIT
-
JANG Seunghun
School of Electrical and Electronic Engineering, Yonsei University
関連論文
- A Synchronization and Cell Searching Technique Using Pilot Tones for OFDM Cellular Systems(Wireless Communication Technologies)
- A Synchronization Technique for OFDM Systems with Smart Antenna (日韓合同ワークショップ 1st Korea-Japan Joint Workshop on Ubiquitous Computing and Networking Systems (ubiCNS 2005))
- On the Performance of the Two-Cell Cooperative Single User (CSU) MIMO System with Hybrid Feedback
- Structural and electrical properties of Mg_2TiO_4
- An Approximation of the Average BER Performance of Multi-Hop AF Relaying Systems with Fixed Gain
- Pre-Processed Recursive Lattice Reduction for Complexity Reduction in Spatially and Temporally Correlated MIMO Channels
- Calibration, Prediction and Process Monitoring Model Based on Factor Analysis for Incomplete Process Data
- Spectral Efficiency Improvement of OFDM by Using Time Domain Superimposition of Data
- Antenna Selective Algebraic STBC Using Error Codebook on Correlated Fading Channels
- A Near-Exact Sum Rate Approximation of Random Beamforming and Its Application to Mode Optimization
- A Closed Form Solution for the Sum Rate of Multiple Random Beamforming
- Downlink Beamforming Throughput Maximization for Multi-Cell Environment in the Presence of the Channel Uncertainty
- Analytic Model for the Gate Current of MODFET's with and without Photonic Control
- Analytic Model for the Gate Current of MODFET's with and without Photonic Control
- Row-by-Row Dynamic Source-Line Voltage Control (RRDSV) Scheme for Two Orders of Magnitude Leakage Current Reduction of Sub-1-V-V_SRAM's(Electronic Circuits)
- On the Performance of the Two-Cell Cooperative Single User (CSU) MIMO System with Hybrid Feedback