Rate Maximization for Downlink Multiuser Visible Light Communications

Signalling-Optimal Beamformer For Multiuser MISO Broadcast Visible Light Communications

In this paper, we consider an optimal space constellation design for a multiuser multi-input single-output (MISO) visible light communication (VLC) broadcast system when channel state information is available at the transmitter. By utilizing the cooperation of multiuser interference, an optimal multidimensional additively uniquely decomposable constellation group (AUDCG) is designed to maximize...

Joint Transmitter-Receiver Optimization for Downlink Multiuser MIMO Communications

This paper develops the joint optimization of linear precoding and decoding for the downlink in multiuser multiple-input multiple-output (MIMO) systems. The system under investigation consists of a single transmitter (base station) with multiple antennas that communicates with several users, each with one or more receive antennas, possibly receiving multiple data streams. The goal is to jointly...

Visible Light Communications

Visible light communication (VLC) is an optical wireless communication technology that uses low-power light-emitting diodes (LEDs) to not only provide light, but also broadcast data [1–3]. LEDs are extremely energy-efficient and are expected to become widespread in general lighting applications. Because LEDs are solid-state lighting devices, they can be modulated at high speed compared to other...

Sum Rate Maximization using Linear Precoding and Decoding in the Multiuser MIMO Downlink

We propose an algorithm to maximize the instantaneous sum data rate transmitted by a base station in the downlink of a multiuser multiple-input, multiple-output system. The transmitter and the receivers may each be equipped with multiple antennas and each user may receive more than one data stream. We show that maximizing the sum rate is closely linked to minimizing the product of mean squared ...

Throughput Maximization in Linear Multiuser MIMO-OFDM Downlink Systems