With the explosive growth in wireless usage due in part to smart phones, tablet computers and a growing applications developer base, wireless operators are constantly looking for ways to increase the spectral efficiency of their networks. Multiple input/ multiple output (MIMO) technology, which made its first broad commercial appearance in 802.11n systems, is now gaining substantial momentum in...

We theoretically analyze the performance of multipleinput multiple-output (MIMO) free-space optical (FSO) systems using subcarrier quadrature modulation (SC-QAM) signaling. The system average symbol-error rate (ASER) is derived taking into account the atmospheric turbulence effects on the MIMO/FSO channel, which is modeled by lognormal and the gamma-gamma distributions for the cases of weak-to-...

MIMO technology promises a linear increase of capacity in function of the minimum antenna number at the transmitter and at the receiver. In order to test if these performances can be actually met in mobile communications, we propose here a study of MIMO (Multiple Input Multiple Output) capacity in urban cellular environment at 2 GHz with a help of an efficient ray propagation model. We have tes...

This paper deals with a reusable simulation computer code (MPC@CB). The original program was developed under Matlab for single input single output (SISO) model predictive control (MPC) for any constrained optimization problem (trajectory tracking, processing time minimization...). The control structure is an adaptation of MPC with internal model control (IMC) structure. The algorithm was applie...

Multiple transmit (Tx) and multiple receive (Rx) antennas systems, referred to as multiple input multiple output (MIMO) systems, have been proposed to achieve higher data rates in wireless communication systems. In this paper, we investigate joint optimization of transmitter and receiver for MIMO system when the channel information is available at both transmitter and receiver. We discuss the p...

By adopting multiple-input-multiple-output (MIMO) antenna technologies, IEEE 802.11 wireless LANs are evolving into high speed systems. While only one user can transmit at a time in the conventional IEEE 802.11 systems, we investigate the possibility of multiuser transmission by using MIMO antennas, which is now known as multiuser MIMO. The multiuser MIMO technique enables multiple users to rec...

Spatial Frequency Scheduling for Uplink SC-FDMA based Linearly Precoded LTE Multiuser MIMO Systems Zihuai Lin, Pei Xiao, Troels B. Sørensen, Branka Vucetic Abstract This paper investigates the performance of the 3GPP Long Term Evolution (LTE) uplink Single Carrier (SC) Frequency Division Multiple Access (FDMA) based linearly precoded multiuser Multiple Input Multiple Output (MIMO) systems with ...

Industry communications systems without thread has grown tremendous over the last few years, these systems have evolved significantly in terms of services offered, the wireless communication suffers of the Multiple Access Interference (MAI) and computational complexity. We propose a new technique of coding applies to the downlink of Multi input Multi output MultiCarrier Code Division Multiple A...

Massive multiple-input multiple-output (MIMO) systems are strong candidates for future fifth generation (5G) heterogeneous cellular networks. For 5G, a network densification with a high number of different classes of users and data service requirements is expected. Such a large number of connected devices needs to be separated in order to allow the detection of the transmitted signals according...