Throughput and packet delay analysis of the Intermittent DCF for Overlay Access networks

Adamis, AV; Maliatsos, KN; Constantinou, P

dc.contributor.author	Adamis, AV	en
dc.contributor.author	Maliatsos, KN	en
dc.contributor.author	Constantinou, P	en
dc.date.accessioned	2014-03-01T02:46:33Z
dc.date.available	2014-03-01T02:46:33Z
dc.date.issued	2009	en
dc.identifier.issn	0916-8516	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32713
dc.subject	DCF	en
dc.subject	Intermittent	en
dc.subject	Overlay Access	en
dc.subject	Packet delay	en
dc.subject	Throughput	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Access network	en
dc.subject.other	Access technology	en
dc.subject.other	Admission Control Algorithms	en
dc.subject.other	Analytical model	en
dc.subject.other	Cognitive radio	en
dc.subject.other	DCF	en
dc.subject.other	Distributed Coordination Function	en
dc.subject.other	Feasibility studies	en
dc.subject.other	Intermittent	en
dc.subject.other	MAC protocol	en
dc.subject.other	Markov chain models	en
dc.subject.other	Operation parameters	en
dc.subject.other	Overlay Access	en
dc.subject.other	Packet delay	en
dc.subject.other	Transmission rates	en
dc.subject.other	Algorithms	en
dc.subject.other	Markov processes	en
dc.subject.other	Mathematical models	en
dc.subject.other	Models	en
dc.subject.other	Network protocols	en
dc.subject.other	Throughput	en
dc.subject.other	Computer simulation	en
dc.title	Throughput and packet delay analysis of the Intermittent DCF for Overlay Access networks	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1587/transcom.E92.B.3448	en
heal.identifier.secondary	http://dx.doi.org/10.1587/transcom.E92.B.3448	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Overlay Access Technology can compensate for the spectrum underutilization problem by exploiting Cognitive Radios capabilities. MAC design is an important aspect of Overlay Access research. In this paper we present the overlay access environment and the challenges it poses to MAC design. Then, we propose the use of a modified Distributed Coordination Function as the MAC protocol for distributed Overlay Access networks. The resulted Intermittent DCF performs with robustness in the demanding overlay access environment, which is characterized by frequent spectrum scan procedure interruptions and low achievable transmission rates. The most recent DCF Markov Chain Model is extended in order to include the overlay operation modifications. Our extension concerns the slot duration expectations calculation which, in the overlay environment, have not constant values but depend on overlay operation parameters. Using the analytical model we evaluate the performance of the DCF under the effect of certain overlay access parameters. The new analytical model predictions are validated with simulations, and are found to accurately capture many interesting features of the overlay operation. Our model can be used in feasibility studies of realistic overlay scenarios and in admission control algorithms of QoS enabled distributed overlay access networks that engage the Intermittent DCF. Copyright © 2009 The Institute of Electronics, Information and Communication Engineers.	en
heal.publisher	IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG	en
heal.journalName	IEICE Transactions on Communications	en
dc.identifier.doi	10.1587/transcom.E92.B.3448	en
dc.identifier.isi	ISI:000272774300021	en
dc.identifier.volume	E92-B	en
dc.identifier.issue	11	en
dc.identifier.spage	3448	en
dc.identifier.epage	3458	en