Linear beamformer schemes with simple relay selection in MIMO relay networks
| Autor: | Su Pan, Baoyu Zheng, Qing-min Meng, Hong-bo Zhu, Xiao-hu You |
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| Rok vydání: | 2008 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS MIMO Mesh networking Data_CODINGANDINFORMATIONTHEORY Topology law.invention Relay law Control theory Signal Processing Computer Science::Networking and Internet Architecture Wireless Selection method business Mimo relay Relay channel Computer Science::Information Theory Information Systems |
| Zdroj: | The Journal of China Universities of Posts and Telecommunications. 15:24-39 |
| ISSN: | 1005-8885 |
| DOI: | 10.1016/s1005-8885(08)60397-0 |
| Popis: | This article considers a wireless multi-hop/mesh network where single multi-antenna source-destination pair communicates through a selected relay subset using simple relay selection under the constraint of fixed relay's number. Compared with random selection, the simple relay selection can yield certain capacity advantages while linear zero-forcing (ZF) receiver and linear beamformer are considered at the relay. For match-filter (MF) beamformer and amplified-and-forward (AF) beamformer with a fixed number of relays, the capacities are given. Furthermore, we extend the simple selection methods to the relaying scheme with orthogonal-triangular (QR) beamformer and investigate these linear beamformer schemes over spatially correlated multi-input multi-output (MIMO) links for both the backward and forward channel over the two-hop MIMO relay networks. |
| Databáze: | OpenAIRE |
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