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Adaptive spatial bit loading using imperfect channel state information
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
2005 (English)In: Proceedings of International Workshop on Optical and Electronic Device Technology for Access Networks, Aalborg, Denmark, 2005Conference paper, Published paper (Refereed)
Abstract [en]

Using information about the channel at the transmitter can improve the performance of multi-input multi-output (MIMO) communication systems. When perfect channel state information (CSI) is available, data can be multiplexed and optimized over independent spatial channels. When the available channel information is imperfect or partial, crosstalk between the spatial channels is inevitable complicating the design since the performance of the spatial streams has to be considered jointly. In this paper an efficient algorithm for bit and power loading on the spatial channels is presented. Focus is on maximizing the data rate at fixed bit error rate and reasonable computational complexity.

Place, publisher, year, edition, pages
2005.
Keyword [en]
multi-input multi-output (MIMO), perfect channel state information (CSI), crosstalk, spatial channels, bit and power loading, computational complexity
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-73196OAI: oai:DiVA.org:kth-73196DiVA: diva2:488628
Note
Invited paper. NQCAvailable from: 2012-02-01 Created: 2012-02-01 Last updated: 2012-02-02Bibliographically approved

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Ottersten, Björn

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