Please use this identifier to cite or link to this item: http://drsr.daiict.ac.in//handle/123456789/184
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dc.contributor.advisorChakka, Vijaykumar
dc.contributor.authorDhaka, Kalpana
dc.date.accessioned2017-06-10T14:37:21Z
dc.date.available2017-06-10T14:37:21Z
dc.date.issued2008
dc.identifier.citationDhaka, Kalpana (2008). Symbol detection in MIMO systems. Dhirubhai Ambani Institute of Information and Communication Technology, x, 56 p. (Acc.No: T00147)
dc.identifier.urihttp://drsr.daiict.ac.in/handle/123456789/184
dc.description.abstractMultiple input multiple output symbol detection methods are observed under frequency flat fading AWGN channel condition. The modulation method employed is Quadrature amplitude modulation (QAM). The various symbol detection techniques are compared to observe their behavior under AWGN channel condition condition. Maximum likelihood (ML) symbol detection method gives the best performance but because of its high complexity it can’t be used. Sphere decoder reduces the complexity to some extent providing similar performance as ML estimate. The other methods used are Zero forcing and Minimum mean square stimation. These two methods when used successively for interference cancellation improves performance to large extent along with reduction in the cost. The technique employed for successive detectionis devised by bell laboratory hence it is called as V-BLAST method. Maximum a posteriori when used along with V-BLAST MMSE algorithm further improves the performance. These methods even works well under Rayleigh channel condition. Finally, the simulation results for performance of V-BLAST under both the channel condition are observed for all the symbol detection techniques. To increase the diversity for improved performance space time trellis code are employed. Their performance is observed for QPSK modulation scheme.
dc.publisherDhirubhai Ambani Institute of Information and Communication Technology
dc.subjectSpace time codes
dc.subjectMIMO systems
dc.subjectWireless communication systems
dc.subjectAntenna arrays
dc.subjectModulation
dc.subjectElectronics
dc.classification.ddc621.3840285572 DHA
dc.titleSymbol detection in MIMO systems
dc.typeDissertation
dc.degreeM. Tech
dc.student.id200611003
dc.accession.numberT00147
Appears in Collections:M Tech Dissertations

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