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Effect of imperfect channel estimate on the performance of MMSE receivers in multibeam satellite systems: First order analysis
(Signal Processing)ORCID iD: 0000-0003-2298-6774
2014 (English)In: 2014 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), IEEE conference proceedings, 2014Conference paper, (Refereed)
Abstract [en]

Aggressive frequency reuse in a multibeam satellite system offers wider bandwidths per beam at the cost of increased co-channel interference. Focussing on the return link of interactive mobile satellite systems, emphasis has been laid on Minimum Mean Squared Error (MMSE) receivers at the gateway to reduce the co-channel interference arising out of aggressive reuse. Performance of such receivers have been evaluated in presence of perfect channel information and synchronization showing impressive gains in throughput. Towards bringing such receivers closer to system implementation, this work aims at understanding the effect of imperfect channel estimates on the resulting performance. In particular, utilizing first order approximations, closed-form expressions for the MMSE receiver and the resulting Mean Squared Error (MSE) have been derived. These expressions provide insight into the effect of channel, noise levels and the estimation error on performance while indicating the robustness of MMSE receiver.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2014.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-163732DOI: 10.1109/CONECCT.2014.6740328Scopus ID: 2-s2.0-84900658238OAI: oai:DiVA.org:kth-163732DiVA: diva2:1082093
Conference
CONECCT
Note

QC 20170322

Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2017-03-22Bibliographically approved

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Ottersten, Björn
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CiteExportLink to record
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