Performance evaluation of OFDMA techniques in multicellular networks

Zarbouti, DA; Stiakogiannakis, IN; Tsoulos, GV; Athanasiadou, GA; Kaklamani, DI

dc.contributor.author	Zarbouti, DA	en
dc.contributor.author	Stiakogiannakis, IN	en
dc.contributor.author	Tsoulos, GV	en
dc.contributor.author	Athanasiadou, GA	en
dc.contributor.author	Kaklamani, DI	en
dc.date.accessioned	2014-03-01T02:45:44Z
dc.date.available	2014-03-01T02:45:44Z
dc.date.issued	2008	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32351
dc.subject	Adaptive Modulation	en
dc.subject	Blocking Probability	en
dc.subject	Channel Allocation	en
dc.subject	Performance Evaluation	en
dc.subject	Wireless Systems	en
dc.subject	High Throughput	en
dc.subject	Orthogonal Frequency Division Multiple Access	en
dc.subject.other	Bit rates	en
dc.subject.other	Channel conditions	en
dc.subject.other	High throughput	en
dc.subject.other	Loading factors	en
dc.subject.other	Lower complexity	en
dc.subject.other	Multicellular environment	en
dc.subject.other	Orthogonal frequency division multiple access	en
dc.subject.other	Performance evaluation	en
dc.subject.other	Power controlled	en
dc.subject.other	Subchannel allocation	en
dc.subject.other	Wireless systems	en
dc.subject.other	Blocking probability	en
dc.subject.other	Radio communication	en
dc.subject.other	Wireless networks	en
dc.subject.other	Frequency division multiple access	en
dc.title	Performance evaluation of OFDMA techniques in multicellular networks	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/PIMRC.2008.4699697	en
heal.identifier.secondary	http://dx.doi.org/10.1109/PIMRC.2008.4699697	en
heal.identifier.secondary	4699697	en
heal.publicationDate	2008	en
heal.abstract	Orthogonal Frequency Division Multiple Access (OFDMA) techniques are investigated in this paper. Five subchannel allocation algorithms are analysed and their performance in a multicellular environment is evaluated with simulations. Four schemes of lower complexity, suitable for the early deployment of wireless systems, are compared with a more computationally demanding scheme with respect to their blocking probability, loading factor, and offered bit rate. The channel condition of each carrier is calculated and its knowledge is used for power controlled adaptive modulation, as an essential feature of the OFDMA technique. The results show that a wireless system in its early deployment phase (up to 15%-30% blocking probability) can employ simple OFDMA techniques capable of achieving high throughput. © 2008 IEEE.	en
heal.journalName	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC	en
dc.identifier.doi	10.1109/PIMRC.2008.4699697	en