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Adaptive MMSE Multiuser Detection in MIMO OFDM wireless communication system

Adaptive MMSE Multiuser Detection in MIMO OFDM wireless communication system

Eneh, T., Rapajic, P., Anang, K.A. and Bello, Lawal (2012) Adaptive MMSE Multiuser Detection in MIMO OFDM wireless communication system. In: Advanced Materials Research. Scientific Net, pp. 233-240. ISBN 978-3-03785-270-5 ISSN 1662-8985 (doi:10.4028/www.scientific.net/AMR.367.233)

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Abstract

The combination of MIMO signal processing with OFDM is a solution to achieving high data rates for next generation wireless communication systems operating in frequency selective fading environments. To realize the extension of the MIMO with OFDM, a number of changes are required in the baseband signal processing. The developed adaptive Multiuser Detection in MIMO OFDM(AMUD) scheme performs better compared to non adaptive MIMO OFDM, at low Signal to noise ratio (SNR), it shows good performance in computational complexity, bit error rate (BER) and capacity. Simulation results show that the developed algorithm sum rate capacity is very close to MIMO theoretical upper bound (21.5 bits/s/Hz at signal to noise ratio of 20dB) which strongly indicate it’s applicability to the uplink channel where power transmission at the mobile station is a constraint. The BER performance of the developed scheme shows that, as the number of antenna increases, the 8 x 8 AMUD provides a 2dB gain compared to known non adaptive MIMO OFDMO at low SNR.

Item Type: Conference Proceedings
Title of Proceedings: Advanced Materials Research
Additional Information: [1] Paper published in Advanced Materials Research, 367 - entitled 'Advances in Materials and Systems Technologies III' and is a collection of selected peer-reviewed papers from the 2010 International Conference on Engineering Research and Development: Advances in Engineering, Science and Technology (ICERD2010), held at the University of Benin, Nigeria, 7-9 September 2010. The conference was part of the biennial conference series on Engineering Research and Development.
Uncontrolled Keywords: Adaptive Multiuser Detection, MIMO Systems, multicarrier, OFDM Systems
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments: School of Engineering
School of Engineering > Department of Computer & Communications Engineering
Related URLs:
Last Modified: 14 Oct 2016 09:18
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/7304

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