Spectrally efficient frequency division multiplexing (SEFDM) is attracting attention as one
solution to the problem of frequency resource scarcity. This transmission scheme improves …

STBC-VBLAST MIMO space-time codes combine spatial multiplexing with diversity gain to
achieve both high spectral efficiency and link reliability. In this work, we present a new near …

Recently, multi-user multiple-input multiple-output (MU-MIMO) systems are being widely
studied. For interference cancellation, MU-MIMO commonly uses spatial precoding …

This work presents a proposal of an implementation of a Sorted QR decomposition using
fixed-point arithmetic for STBC-VBLAST space-time scheme. This proposal was verified in …

Inter-carrier interference (ICI) in vehicle to vehicle (V2V) orthogonal frequency division
multiplexing (OFDM) systems is a common problem that makes the process of detecting data …

In recent wireless communication technologies, multi-user multiple-input multiple-output
(MU-MIMO) systems are widely studied. In these systems, spatial precoding is commonly …

This paper presents a new decoder algorithm for the double space–time transmit diversity
(DSTTD) system. The decoder is based on the QRD-M algorithm, which performs a breadth …

In our previous paper, we have proposed mutual superposition transmission (MST) for
spatial multiplexing (SM) orthogonal frequency division multiplexing (OFDM) systems. In …

Inventors: Mikio Kuwahara, Yokohama (JP);(57) Kenzaburo Fujishima, Tokyo (JP) TO
provide a space multiplex signal detection circuit capable of obtaining an excellent error rate …