Resource Scheduling to Jointly Minimize Receiving and Transmitting Energy in OFDMA Systems
2014 (English)In: 2014 11TH INTERNATIONAL SYMPOSIUM ON WIRELESS COMMUNICATIONS SYSTEMS (ISWCS), IEEE , 2014, 187-191 p.Conference paper (Refereed)
Resource scheduling in orthogonal frequency division multiple access (OFDMA) for energy saving has attracted extensive attention. Most current research considers the reduction of energy at the transmitter or the receiver separately. In this paper, we focus on minimizing the energy consumption in both sides concurrently by formulating the problem of joint receiving and transmitting energy-efficient scheduling (RTEES) in OFDMA downlink. We show that this problem can be cast as a binary integer programme. We solve the RTEES problem by a computationally efficient algorithm. We proposed a specialized solution approach, named time-slot-oriented column generation (TSOCG) algorithm, for approaching and bounding the global optimality. Numerical studies show that the proposed algorithm solution is competitive and time-efficient to provide a close-to-optimum solution and a tight bound.
Place, publisher, year, edition, pages
IEEE , 2014. 187-191 p.
Energy saving; column generation; resource allocation; resource scheduling; OFDMA
IdentifiersURN: urn:nbn:se:liu:diva-123094ISI: 000363906500036ISBN: 978-1-4799-5863-4OAI: oai:DiVA.org:liu-123094DiVA: diva2:876411
11th International Symposium on Wireless Communications Systems (ISWCS)