Remote Control of Transmit Beamforming for Multiuser TDD/MIMO Systems
スポンサーリンク
概要
- 論文の詳細を見る
This paper proposes a new control scheme in which the base station (BS) controls terminals transmit beamforming in time-division duplex (TDD)/multi-input multi-output (MIMO) systems. In the proposed scheme, the BS transmits pilot signals using appropriate downlink beams, to instruct a terminal on target transmit beamforming. Using responses of the downlink pilot signals, the terminal can perform transmit beamforming close to the target one. Our theoretical investigation reveals that the BS can control multiple terminals transmit beamforming simultaneously. Furthermore, an efficient signal processing at the terminal is investigated to obtain precise weight of transmit beamforming in noise environments. Numerical results show that the terminal can perform precise transmit beamforming close to the target one in noise environments. It is also shown that the amount of downlink control signalling in the proposed scheme is much less than that in codebook-based approach.
- （社）電子情報通信学会の論文
- 2008-06-01
著者
-
HARA Yoshitaka
Mitsubishi Electric Corporation
-
Oshima Kazuyoshi
Mitsubishi Electric Information Technol. Centre Europe B.v. (ite). Rennes Fra
-
Hara Yoshitaka
Mitsubishi Electric Corp. Kamakura‐shi Jpn
関連論文
- Antenna Array Calibration Based on Frequency Selection in OFDMA/TDD Systems
- A Pre-FFT OFDM Adaptive Array Antenna with Eigenvector Combining(Wireless Communication Technologies)
- Time Slot Assignment for Cellular SDMA/TDMA Systems with Adaptive Antennas(Wireless Communication Technology)
- An Efficient Multiuser Relay Scheme for OFDMA Systems
- Broadband Optical Access Technologies to Converge towards a Broadband Society in Europe
- Pilot-Based Channel Quality Reporting for OFDMA/TDD Systems with Cochannel Interference(Wireless Communication Technologies)
- Partial CSI Reporting for Spatial Scheduling in Multiuser MIMO Systems
- Remote Control of Transmit Beamforming for Multiuser TDD/MIMO Systems
- Pilot-Based Channel State Feedback in TDD/MIMO Systems with Co-channel Interference
- Multiband Mobile Communication System for Wide Coverage and High Data Rate(Wireless Communication Technologies)
- Throughput Maximization Transmission Control Scheme for MIMO Systems(Wireless Communication Technologies)
- Radio Resource Management and Power Control for W-CDMA Uplink with High Data Rate Packet Transmission(Wireless Communication Technologies)
- A Frequency Scheduling Method for MC-CDM(Wireless Communication Technologies)