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Voice services over Adaptive Multiuser channel in One Slot (VAMOS) performance in the presence of GMSK interferer is presented. Widely-Linear (WL) MMSE filtering is used to cancel the co-channel GMSK interferer while performing α-QPSK detection. In this paper, two ways of estimating the Sub Channel Power Imbalance Ratio (SCPIR) are discussed. Due to the colouration of the resultant impairment after filtering, WL metric is proposed which incorporates error covariance between I/Q components in the metric computation. WL RSSE is used as the equalizer. Simulation results using the proposed receiver architecture show significant performance important over conventional VAMOS receivers.
Published in:
Wireless Communication Systems (ISWCS), 2011 8th International Symposium on
Date of Conference: 6-9 Nov. 2011
- Page(s):
- 31 - 35
- ISSN :
- 2154-0217
- E-ISBN :
- 978-1-61284-401-5
- Print ISBN:
- 978-1-61284-403-9
- INSPEC Accession Number:
- 12459463
- Conference Location :
- Aachen
- Digital Object Identifier :
- 10.1109/ISWCS.2011.6125304
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