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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hyeong-Sook Park Youn-Ok Park Cheol-Sung Kim |
| Copyright Year | 2006 |
| Description | Author affiliation: Wireless Packet Modem Res. Team, ETRI, Daejeon (Hyeong-Sook Park; Youn-Ok Park) |
| Abstract | This paper presents the efficient structure and parameter optimization of downlink beamforming transmitter in OFDMA/TDD system. To design downlink beamforming transmitter for multiple transmit antennas, an efficient beamforming structure for multiple users and the choice of word-length of main data path are critical in the aspect of its performance and hardware complexity. We propose an efficient beamforming scheme, which calculates the weights for corresponding user in a subcarrier unit of IFFT input at high speed to reduce the hardware complexity and processing time of transmitter and receiver. Also, we obtain the word-length of main data path and other design parameters by simulation analysis. The proposed architecture could reduce the memory size proportional to the maximum number of users per frame, and the processing time of an OFDM symbol at the receiver of base station without the need of an additional processing time for calculating the weights at the transmitter. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 185814 |
| Page Count | 5 |
| File Format | |
| ISBN | 1424400627 |
| DOI | 10.1109/VTCF.2006.134 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-09-25 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Array signal processing Transmitters Downlink Transmitting antennas Receiving antennas Web and internet services Base stations Analytical models Hardware OFDM |
| Content Type | Text |
| Resource Type | Article |
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