OFDM Based Adaptive Beamforming for Hybrid Terrestrial-Satellite Mobile System with Pilot Reallocation

Khan, A. H., Imran, M. A. and Evans, B. G. (2009) OFDM Based Adaptive Beamforming for Hybrid Terrestrial-Satellite Mobile System with Pilot Reallocation. In: 2009 International Workshop on Satellite and Space Communications, Siena-Tuscany, Italy, 09-11 Sep 2009, ISBN 9781424443840 (doi:10.1109/IWSSC.2009.5286394)

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Abstract

Next generation networks will have to provide global connectivity to ensure success. Both satellite and terrestrial networks cannot guarantee this on their own. This incapability is attributed to capacity coverage issues in densely populated areas for satellites and lack of infrastructure in rural areas for terrestrial networks. Therefore, we consider a hybrid terrestrial-satellite mobile system based on frequency reuse. However, this frequency reuse introduces severe co-channel interference (CCI) at the satellite end. To mitigate CCI, we propose an OFDM based adaptive beamformer implemented on-board the satellite with pilot reallocation at the transmitter side. Results show that the proposed scheme outperforms the conventional approach.

Item Type:Conference Proceedings
Additional Information:Ammar H. Khan would like to thank Centre for Communication Systems and Research (CCSR), United Kingdom and National University of Sciences and Technology (NUST), Pakistan for supporting him to undertake this work. Also, this work was partially conducted under the SATNEX II EU project to whom due acknowledgment is made.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad
Authors: Khan, A. H., Imran, M. A., and Evans, B. G.
College/School:College of Science and Engineering > School of Engineering
ISBN:9781424443840
Published Online:13 October 2009

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