Adaptive Antenna Scaling for Multi-User MIMO Downlink Zero-Forcing Transmissions with Finite Rate Feedback
| Autor: | Hong-Chuan Yang, Ki-Hong Park, Young-Chai Ko, Kim Jeong-Ik |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Beamforming
Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS MIMO Data_CODINGANDINFORMATIONTHEORY Interference (wave propagation) Precoding Multi-user MIMO Transmission (telecommunications) Control theory Telecommunications link Electronic engineering Antenna (radio) Computer Science::Information Theory Communication channel |
| Zdroj: | WCNC |
| DOI: | 10.1109/wcnc.2008.122 |
| Popis: | In this paper, we introduce a new zero-forcing beamforming (ZFBF) transmission scheme for multi-user MIMO Gaussian channel with finite rate feedback. With this transmission scheme, the base station adaptively utilizes transmit antennas according to the channel status and the number of active users to control the multiuser interference. We show through selected numerical results that our proposed scheme can achieve remarkable sum-rate improvement compared to other schemes with fixed transmit antennas. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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