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A low complexity antenna diversity receiver for OFDM based systems
KTH, Superseded Departments, Signals, Sensors and Systems. (Radio Communication Systems Group)ORCID iD: 0000-0001-9697-9978
2001 (English)In: IEEE International Conference on Communications, 2001, 1147-1151 p.Conference paper, Published paper (Refereed)
Abstract [en]

A low complexity antenna diversity architecture with a new combining technique suitable for orthogonal frequency division (OFDM) based systems is introduced in this paper. For a two branch antenna diversity, this structure requires only one FFT at the receiver and allows optimum maximum ratio combining. For systems with a higher number of antennas, the number of required FFTs when using such technique is reduced by half as compared to the conventional case where a different FFT is used for each receive antenna. As a result a considerable reduction in processing complexity is obtained especially for systems with high number of subcarriers. This method can also be seen as a way of increasing the number of antennas in OFDM transceivers without any major complexity increase. Thus, a considerable increase in diversity gain can be achieved

Place, publisher, year, edition, pages
2001. 1147-1151 p.
Keyword [en]
Algorithms, Bandwidth, Bit error rate, Communication channels (information theory), Diversity reception, Fast Fourier transforms, Gain control, Orthogonal frequency division multiplexing, Transceivers
National Category
Communication Systems
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-49733OAI: oai:DiVA.org:kth-49733DiVA: diva2:460182
Conference
International Conference on Communications (ICC2001); Helsinki; 11 June 2000 through 14 June 2000
Note
QC 20111130Available from: 2011-11-29 Created: 2011-11-29 Last updated: 2011-11-30Bibliographically approved

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