Network-Coded Cooperative Systems With Generalized User-Relay Selection
| Autor: | Ali Reza Heidarpour, Chintha Tellambura, Masoud Ardakani, Marco Di Renzo, Murat Uysal |
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| Přispěvatelé: | University of Alberta, Centre National de la Recherche Scientifique (CNRS), Özyeğin University |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
02 engineering and technology Data_CODINGANDINFORMATIONTHEORY network-coded cooperative Topology Scheduling (computing) law.invention Relay law 0202 electrical engineering electronic engineering information engineering Wireless outage analysis diversity order Electrical and Electronic Engineering Rayleigh fading Computer Science::Information Theory Generalized user-relay selection (GURS) business.industry Applied Mathematics 020206 networking & telecommunications Load balancing (computing) Coding gain Computer Science Applications Linear network coding networkcoded cooperative business [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Communication channel |
| Zdroj: | IEEE Transactions on Wireless Communications IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2020, 19, pp.7251-7264. ⟨10.1109/TWC.2020.3010243⟩ |
| ISSN: | 1536-1276 |
| DOI: | 10.1109/TWC.2020.3010243⟩ |
| Popis: | We consider a network-coded cooperative (NCC) system that consists of $N \ge 2$ sources, $M\ge 1$ decode-and-forward (DF) relays, and a single destination. The relays perform network coding (NC) on the received sources’ symbols using maximum distance separable (MDS) codes. For this system, we propose the most generalized user-relay selection (GURS) scheme in the literature that selects any arbitrary subsets of $K$ users and any arbitrary subsets of $L$ relays subject to practical constraints such as load balancing conditions and scheduling policy. Our analytical results and design guidelines generalize and subsume all existing results as special cases. To this end, we derive a new closed-form outage probability (OP) expression, assuming non–identically and independently distributed (n.i.i.d.) Rayleigh fading channels. The asymptotic outage expression at high signal-to-noise ratio (SNR) regime is further derived, based on which, the achievable diversity order and coding gain are quantified. The theoretical derivations are also validated through Monte-Carlo simulation. |
| Databáze: | OpenAIRE |
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