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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Myoung Un Kim Youjin Kim Yoora Cho Hyun Jong Yang |
| Copyright Year | 2014 |
| Description | Author affiliation: Sch. of Electr. & Comput. Eng., UNIST, Ulsan, South Korea (Myoung Un Kim; Youjin Kim; Yoora Cho; Hyun Jong Yang) |
| Abstract | Multi-input single-output (MISO) beamforming techniques are addressed in the downlink small cells environment, where a small cell base station (BS) has multiple antennas while a user has a single antenna. Two-types of extreme beamforming schemes at small cell base stations (BSs) are considered based on local channel state information (CSI) at transmitter: i) maximizing the desired channel gain and ii) minimizing the interference generated by each small cell base station (BS). Then, we propose a beamforming scheme that minimizes weighted generating-interference in pursuit of enhancing the achievable rate. In particular, an additional scalar information exchange is assumed between the BSs via a low-rate interface such as the X-2 interface in the 3GPP standards. By carefully choosing the weight coefficients based on the signal-to-interference-and-noise-ratios (SINRs), the scheme balances between these two philosophies - egoism and altruism. Simulation results show that there exists a trade-off between the amount of CSI knowledge and the achievable rate. |
| Starting Page | 446 |
| Ending Page | 449 |
| File Size | 863955 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479967865 |
| DOI | 10.1109/ICTC.2014.6983178 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-22 |
| Publisher Place | South Korea |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wireless communication Downlink beamforming Array signal processing Multicell downlink Interference Scalar information exchange Downlink Vectors Information exchange Small cells Signal to noise ratio Multi-input single-output (MISO) |
| Content Type | Text |
| Resource Type | Article |
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