V-BLAST/MAP : a new symbol detection algorithm for mimo channels
Author(s)
Advisor
Arıkan, ErdalDate
2005Publisher
Bilkent University
Language
English
Type
ThesisItem Usage Stats
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Abstract
In this thesis, we introduce a new symbol detection algorithm for MIMO channels.
This algorithm is an extension of the well-known V-BLAST algorithm. The
new algorithm, V-BLAST/MAP, combines elements of the V-BLAST algorithm
and the maximum a-posteriori (MAP) rule.
The original V-BLAST algorithm is a multi-layer symbol detection scheme
which detects symbols transmitted at different transmit antennas successively
in a certain data-independent order. The proposed V-BLAST/MAP algorithm
differs from V-BLAST only in the ordering strategy of the symbols detected.
The complexity of the V-BLAST/MAP is higher than that of V-BLAST; however,
the performance improvement is also significant. Simulations show that
V-BLAST/MAP achieves symbol error rates close to the optimal maximum likelihood
(ML) scheme while retaining the low-complexity nature of the V-BLAST.