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We establish the MIMO switching criterion based on the modulation order, where the higher modulation order that can be supported by V-BLAST or Alamouti coding is chosen as the proper MIMO scheme.
In the V-BLAST system, two symbols are transmitted from two LEDs simultaneously over one symbol period.
It employs BPSK modulation and V-BLAST space-time coding with carrier frequencies from 0 to 100MHz.
It is observable that the performances of ZF, MMSE, V-BLAST and the V-BLAST based on MMSE methods almost have no differences.
Valenzuela, "V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel," in Proceedings of the URSI International Symposium on Signals, Systems, and Electronics (ISSSE '98), pp.
Kammeyer, "MMSE extension of V-BLAST based on sorted QR decomposition," in Proceedings of the IEEE 58th Vehicular Technology Conference (VTC '03-Fall), vol.
Consider a ZF-OSIC V-BLAST system with M transmitting antennas and N ([greater than or equal to]M ) receiving antennas in a flat-fading and rich-scattering environment.
The objective of V-BLAST is to recover the symbol vector s(k) from the observations r(k) and the estimate H.
In this paper, we introduce a V-BLAST algorithm with reduced complexity.
The two algorithms are compared with the ordinary V-BLAST detector using two criteria; BER performance and complexity.
The idea behind the zero-forcing V-BLAST algorithm (ZF-VB) is to detect the components of x that suffer the least noise amplification first.
DFD based on the QR decomposition (QRD) of the MIMO channel requires only a fraction of the computational efforts required by the V-BLAST detection algorithm .
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- V-ATPase A subunit 1
- V-ATPase B1 subunit
- V-ATPase C subunit
- V-ATPase D subunit
- V-ATPase F subunit
- V-ATPase H subunit
- V-ATPase M9.2 subunit
- V-ATPase subunit A
- V-ATPase subunit B 1
- V-ATPase subunit c
- V-ATPase subunit C 1
- V-ATPase subunit D
- V-ATPase subunit e 1
- V-ATPase subunit F
- V-ATPase subunit G 1
- V-ATPase subunit G 2
- V-ATPase, subunit E
- V-Band: 40 GHz-75 GHz frequency band
- V-beam radar
- V-beam sheeting
- V-bend die
- V-bucket carrier
- V-Cillin K
- V-E Day
- V-E Day