Relay Selection in Network-Coded Cooperative MIMO Systems
| Autor: | Chintha Tellambura, Masoud Ardakani, Marco Di Renzo, Ali Reza Heidarpour |
|---|---|
| Přispěvatelé: | University of Alberta, Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
multiple-input multiple-output (MIMO)
Computer science MIMO Throughput 02 engineering and technology Data_CODINGANDINFORMATIONTHEORY Topology law.invention 0203 mechanical engineering Relay law 0202 electrical engineering electronic engineering information engineering Overhead (computing) diversity order [INFO]Computer Science [cs] Electrical and Electronic Engineering Rayleigh fading Computer Science::Information Theory outage probability ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Order (ring theory) 020302 automobile design & engineering 020206 networking & telecommunications Coding gain Channel state information Network-coded cooperation (NCC) [INFO.INFO-IT]Computer Science [cs]/Information Theory [cs.IT] Cooperative MIMO coding gain relay selection (RS) Communication channel |
| Zdroj: | IEEE Transactions on Communications IEEE Transactions on Communications, Institute of Electrical and Electronics Engineers, 2019, 67 (8), pp.5346-5361. ⟨10.1109/TCOMM.2019.2911276⟩ |
| ISSN: | 0090-6778 |
| DOI: | 10.1109/TCOMM.2019.2911276⟩ |
| Popis: | Network-coded cooperation (NCC) has recently gained interest as it improves the network throughput in multi-source cooperative systems. NCC has been studied for single-antenna terminals only. Employing multiple-input multiple-output (MIMO) techniques can significantly improve the performance of NCC systems. Furthermore, the existing relay selection (RS) strategies for NCC utilize the “max-min” end-to-end (E2E) criterion. This selection strategy (called Strategy $\mathcal {A}$ ) is complicated even for a network with single-antenna terminals as it requires global channel state information (CSI). This requirement makes it hard to implement RS-based NCC. To counter this issue, we introduce a new RS strategy (Strategy $\mathcal {B}$ ), which utilizes only the local CSI (not global CSI), significantly reducing the signaling overhead without sacrificing the performance. The performance of MIMO-NCC under Strategies $\mathcal {A}$ and $\mathcal {B}$ is studied over independent and non-identically distributed (i.n.i.d.) Rayleigh fading channels. Relays and the destination are equipped with multiple antennas, whereas sources have a single antenna. The exact outage probability expressions of the system under consideration are derived. The asymptotic outage expressions are further provided to obtain valuable insights into the practical system-design parameters such as the diversity order and coding gain. Furthermore, numerical results are provided in support of the analytical results. |
| Databáze: | OpenAIRE |
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