MIMO Decode-and-Forward Relay Systems With an Energy-Constrained Antenna-Switching Relay
| Autor: | Sung Ho Chae, MinChul Ju, Cheol Jeong |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Beamforming
Computer science MIMO 050801 communication & media studies Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology law.invention 0508 media and communications Relay law Computer Science::Networking and Internet Architecture 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Computer Science::Information Theory business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 05 social sciences 020206 networking & telecommunications Computer Science Applications Modeling and Simulation Antenna (radio) Telecommunications business Energy (signal processing) Relay channel Decoding methods |
| Zdroj: | IEEE Communications Letters. 21:1851-1854 |
| ISSN: | 1089-7798 |
| DOI: | 10.1109/lcomm.2017.2695186 |
| Popis: | We study a multiple-input multiple-output (MIMO) relay system composed of a source, a relay, and a destination, in which the decode-and-forward relay delivers the decoded symbols from the source to the destination by harvesting energy from the source. Each antenna in the relay has capability of both information decoding (ID) and energy harvesting (EH), each of which is opportunistically selected to be used for either ID or EH at each time. Under this configuration, we propose antenna assignment algorithms at the relay and the corresponding optimal beamforming design at the source and relay that maximize the end-to-end transmission rate. Specifically, we propose suboptimal antenna assignment algorithms that give performance close to the exhaustive search with significantly reduced complexity. |
| Databáze: | OpenAIRE |
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