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dc.contributor.authorXia, Li
dc.contributor.authorShihada, Basem
dc.date.accessioned2015-04-06T08:41:00Z
dc.date.available2015-04-06T08:41:00Z
dc.date.issued2014-02-05
dc.identifier.citationPower and delay optimisation in multi-hop wireless networks 2014, 87 (6):1252 International Journal of Control
dc.identifier.issn0020-7179
dc.identifier.issn1366-5820
dc.identifier.doi10.1080/00207179.2013.873953
dc.identifier.urihttp://hdl.handle.net/10754/348539
dc.description.abstractIn this paper, we study the optimisation problem of transmission power and delay in a multi-hop wireless network consisting of multiple nodes. The goal is to determine the optimal policy of transmission rates at various buffer and channel states in order to minimise the power consumption and the queueing delay of the whole network. With the assumptions of interference-free links and independently and identically distributed (i.i.d.) channel states, we formulate this problem using a semi-open Jackson network model for data transmission and a Markov model for channel states transition. We derive a difference equation of the system performance under any two different policies. The necessary and sufficient condition of optimal policy is obtained. We also prove that the system performance is monotonic with respect to (w.r.t.) the transmission rate and the optimal transmission rate can be either maximal or minimal. That is, the ‘bang-bang’ control is an optimal control. This optimality structure greatly reduces the problem complexity. Furthermore, we develop an iterative algorithm to find the optimal solution. Finally, we conduct the simulation experiments to demonstrate the effectiveness of our approach. We hope our work can shed some insights on solving this complicated optimisation problem.
dc.publisherInforma UK Limited
dc.relation.urlhttp://www.tandfonline.com/doi/abs/10.1080/00207179.2013.873953
dc.rightsArchived with thanks to International Journal of Control
dc.titlePower and delay optimisation in multi-hop wireless networks
dc.typeArticle
dc.contributor.departmentComputer Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentNetworks Laboratory (NetLab)
dc.identifier.journalInternational Journal of Control
dc.eprint.versionPost-print
dc.contributor.institutionCenter For Intelligent and Networked Systems (CFINS), Department of Automation, TNLIST, Tsinghua University, Beijing 100084, China
kaust.personShihada, Basem
refterms.dateFOA2015-02-05T00:00:00Z
dc.date.published-online2014-02-05
dc.date.published-print2014-06-03


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