A Performance Study of Energy Minimization for Interleaved and Localized FDMA
2014 (English)In: 2014 IEEE 19TH INTERNATIONAL WORKSHOP ON COMPUTER AIDED MODELING AND DESIGN OF COMMUNICATION LINKS AND NETWORKS (CAMAD), IEEE , 2014, p. 16-20Conference paper, Published paper (Refereed)
Abstract [en]
Optimal channel allocation is a key performance engineering aspect in single-carrier frequency-division multiple access (SC-FDMA). It is of significance to consider minimum sum power (Min-Power), subject to meeting specified users demand, since mobile users typically employ battery-powered handsets. In this paper, we prove that Min-Power is polynomial-time solvable for interleaved SC-FDMA (IFDMA). Then we propose a channel allocation algorithm for IFDMA, which is guaranteed to achieve global optimum in polynomial time. We numerically compare the proposed algorithm with optimal localized SC-FDMA (LFDMA) for Min-Power. The results show that LFDMA outperforms IFDMA in the maximal supported user demand. When the user demand can be satisfied in both LFDMA and IFDMA, LFDMA performs slightly better than IFDMA. However MinPower is polynomial-time solvable for IFDMA whereas it is not for LFDMA.
Place, publisher, year, edition, pages
IEEE , 2014. p. 16-20
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-137418ISI: 000380484700004ISBN: 978-1-4799-5725-5 (print)OAI: oai:DiVA.org:liu-137418DiVA, id: diva2:1095568
Conference
19th IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)
2017-05-152017-05-152017-05-15