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VLC is communications using light that can be seen by the human eye. Dimming control of a light emitting diode is an important component needed to provide energy savings and quality of life. SM-MIMO provides a channel capacity and data rate proportional to the number of antennas in the wireless environment. In this paper, we used an SM scheme among the MIMO schemes of the VLC system. We analyzed communications...
In the next generation of mobile communication systems, high data rates and high capacity will be possible if multiple antennas are used at new frequencies. This paper presents the correlations between channel parameter path loss (PL), root mean square delay spread (DS), angular spread (AS), and K-factor established based on channel measurements. The channel measurements were performed in a 781MHz...
We present a link adaptation strategy for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) based wireless communications. Our objective is to choose the optimal mode that will maximize energy efficiency or data throughput subject to a given quality of service (QoS) constraint. We formulate the link adaptation problem as a convex optimization problem and expand...
Multi-input multi-output (MIMO) antenna systems provide the user with additional degrees of freedom over traditional single antenna (SISO) system to enable optimum transmission. This paper focuses on quantifying the maximum energy efficiency of ldquomode-richrdquo MIMO wireless communication systems. We consider a MIMO-OFDM (orthogonal frequency division multiplexing) based software defined radio...
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