Optimization of a Relay-Assisted Link With Buffer State Information at the Source
| Autor: | Mohammad Galal Khafagy, Ahmed Sultan, Ahmed El Shafie |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Link Access Procedure for Frame Relay
Markov chain business.industry Computer science Network packet ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Throughput Data_CODINGANDINFORMATIONTHEORY Computer Science Applications law.invention Transmission (telecommunications) Relay law Modeling and Simulation Computer Science::Networking and Internet Architecture Electrical and Electronic Engineering business Relay channel Computer Science::Information Theory Communication channel Computer network |
| Zdroj: | IEEE Communications Letters. 18:2149-2152 |
| ISSN: | 1089-7798 |
| DOI: | 10.1109/lcomm.2014.2363115 |
| Popis: | This letter proposes a random-access scheme em- ployed by a source in a three-node network composed of a source, a relay and a destination. The source knows the exact number of packets at the finite buffer of the relay. Based on this knowledge, the source probabilistically accesses the channel. We consider a fixed-rate transmission and study the cases with and without channel outage state information at the transmitting nodes. We maximize the throughput in both cases and provide numerical results to illustrate and verify the ideas presented in this work. Index Terms—Buffer-aided relay, BSI, CSI, linear-fractional program, Markov chain, queuing theory. I. INTRODUCTION |
| Databáze: | OpenAIRE |
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