Change search
ReferencesLink to record
Permanent link

Direct link
Structured Semi-Blind Interference Rejection in Dispersive Multichannel Systems
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0003-2298-6774
2002 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 50, no 8, 2027-2036 p.Article in journal (Refereed) Published
Abstract [en]

The impact of interference is one of the most capacity limiting factors in cellular networks today. In order to host more users in existing systems and maximize the capacity of future networks, the use of interference suppression techniques are instrumental. In this paper, we propose a structured semi-blind parameter estimation procedure to support rejection, of unknown cochannel interference (CCI) in systems facing multipath channels with non-negligible delay spread. Employing spatio-temporal processing, the proposed scheme exploits the temporal correlation present in the output signal from an antenna array and the training data of a desired user in order to find parameter estimates that fit the range space of a structured CCI model to the signal subspace of the interfering signals. Simulation results illustrating the behavior of a spatio-temporal receiver using the proposed scheme with respect to both signal-to-noise and signal-to-interference ratios (SNRs and SIRs) are presented. In addition, results highlighting the impact of the training sequence length as well as the impact of the channel model order of the CCI users are also included.

Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2002. Vol. 50, no 8, 2027-2036 p.
Keyword [en]
Antenna arrays, array signal processing, blind estimation, cochannel interference, equalization, fading channels, interference suppression, spatio–temporal processing, structured estimation
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-57733DOI: 10.1109/TSP.2002.800403ISI: 000177023100023OAI: diva2:472570
QC 20120104Available from: 2012-01-04 Created: 2012-01-04 Last updated: 2012-01-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Klang, GöranOttersten, Björn
By organisation
Signals, Sensors and Systems
In the same journal
IEEE Transactions on Signal Processing
Signal Processing

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: 14 hits
ReferencesLink to record
Permanent link

Direct link