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Reducing signaling and respecting time-scales in cross-layer protocols design for wireless networks
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.
2009 (English)In: GLOBECOM 2009 - 2009 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, 2009, 3984-3991 p.Conference paper (Refereed)
Abstract [en]

Current proposals for joint power and rate allocation protocols in ad hoc networks require a large signaling overhead, and do not adhere to the natural time-scales of transport and power control mechanisms. We present a solution that overcomes these issues. We pose the protocol design as a network utility maximization problem and adopt primal decomposition techniques to devise a novel distributed cross-layer design for transport and physical layer that achieves the optimal network operation. Our solution has several attractive features compared to alternatives: it adheres to the natural time-scale separation between rapid power control updates and slower end-to-end rate adjustments; it allows simplified power control mechanisms with reduced signalling requirements, and distributed slow rate cross-layer signalling mechanisms; and it maintains feasibility at each iteration. We validate the theoretical framework and compare the solution alternatives with numerical examples.

Place, publisher, year, edition, pages
2009. 3984-3991 p.
, IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
Keyword [en]
National Category
URN: urn:nbn:se:kth:diva-26510DOI: 10.1109/GLOCOM.2009.5425714ISI: 000280579101249ScopusID: 2-s2.0-77951529037ISBN: 978-1-4244-4147-1OAI: diva2:387379
IEEE Global Telecommunications Conference (GLOBECOM 08) New Orleans, LA, NOV 30-DEC 04, 2008
QC 20110114Available from: 2011-01-14 Created: 2010-11-25 Last updated: 2011-03-30Bibliographically approved

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