Change search
ReferencesLink to record
Permanent link

Direct link
Pilot Power Adjustment for Saving Transmit Power in Pilot Channel Assisted DS-CDMA Mobile Systems
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.ORCID iD: 0000-0003-4986-6123
2010 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 9, no 2, 488-493 p.Article in journal (Refereed) Published
Abstract [en]

In DS-CDMA systems coherent detection is usually adopted by adding or multiplexing redundant pilot signals with voice or data traffic. The pilot signals need additional transmit power but, at the same time, decrease the power used for traffic channel through facilitating channel estimation, which reduces the bit energy-to-noise density ratio (E-b/N-o) required for delivering the traffic signals. The interdependency between pilot and traffic channel powers has been analyzed in various studies, but has not yet been exploited in existing power control methods. In this letter, we provide a method of using the interdependency to adjust pilot power in the context of the existing power control algorithms, and prove its convergence and that it reduces the total transmit power.

Place, publisher, year, edition, pages
2010. Vol. 9, no 2, 488-493 p.
Keyword [en]
Pilot power adjustment, DS-CDMA systems, transmit power control, convergence, cellular radio systems, optimization, diversity, bpsk
URN: urn:nbn:se:kth:diva-19189DOI: 10.1109/twc.2010.02.080961ISI: 000274383100002ScopusID: 2-s2.0-76949089857OAI: diva2:337236
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Zander, Jens
By organisation
Communication Systems, CoS
In the same journal
IEEE Transactions on Wireless Communications

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 23 hits
ReferencesLink to record
Permanent link

Direct link