Full diversity detection in MIMO systems with a fixed-complexity sphere decoder
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE , 2007, 49-52 p.Conference paper (Refereed)
The fixed-complexity sphere decoder (FSD) has been previously proposed for multiple input-multiple output (MIMO) detection to overcome the two main drawbacks of the original sphere decoder (SD), namely its variable complexity and sequential structure. As such, the FSD is highly suitable for hardware implementation and has shown remarkable performance through simulations. Herein, we explore the theoretical aspects of the algorithm and prove that the FSD achieves the same diversity order as the maximum likelihood detector (MLD). Further, we show that the coding loss can be made negligible in the high signal to noise ratio (SNR) regime with a significantly lower complexity than that of the MLD.
Place, publisher, year, edition, pages
IEEE , 2007. 49-52 p.
, IEEE International Conference on Acoustics, Speech and Signal Processing, ISSN 1520-6149
sphere decoder, MIMO, diversity order, signal detection, Decision feedback equalizers, Detectors, Diversity reception, Maximum likelihood decoding, Maximum likelihood detection, Quadrature amplitude modulation, Signal to noise ratio
Signal Processing Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-34952DOI: 10.1109/ICASSP.2007.366469ISI: 000248906600013ScopusID: 2-s2.0-34547540108OAI: oai:DiVA.org:kth-34952DiVA: diva2:427406
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
QC 201106282011-06-282011-06-172012-01-23Bibliographically approved