Stability Analysis and Power Optimization for Energy Harvesting Cooperative Networks
2012 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, E-ISSN 1558-2361, Vol. 19, no 1, 20-23 p.Article in journal, Letter (Refereed) Published
In this letter, we investigate the effects of network-layer cooperation in a wireless three-node network with energy-harvesting nodes and bursty data traffic. By modelling energy harvesting in each node as a queue (buffer) that stores the received energy, we study the interaction between data and energy queues when only knowledge of the arrival rates is available. The maximum stable throughput (in packets/slot) of the source as well as the required transmitted power for both a non-cooperative and an orthogonal decode-and-forward cooperative schemes are derived in closed-form. We prove that cooperation achieves a higher maximum stable throughout than direct link for scenarios with poor energy arrival rates.
Place, publisher, year, edition, pages
2012. Vol. 19, no 1, 20-23 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-117617DOI: 10.1109/LSP.2011.2175382ISI: 000297583800002OAI: oai:DiVA.org:kth-117617DiVA: diva2:602319
QC 201302122013-01-312013-01-312013-02-12Bibliographically approved