Channel capacity of a MIMO system is dependent not only on the signal-to-noise ratio (SNR) but also on spatial correlation among antenna elements. Therefore, the system design must rely on good propagation predictions. By using a ray tracing simulator, which considers reflections, penetrations and diffractions in 3-D space, we predict channel properties and evaluate capacity of 4× 4 indoor MIMO...

Localization as a technique to solve the complex and challenging problems besetting line-of-sight (LOS) and non-line-of-sight (NLOS) transmissions has recently attracted considerable attention in the wireless sensor network field. This paper proposes a strategy for eliminating NLOS localization errors during calculation of the location of mobile terminals (MTs) in unfamiliar indoor environments...

A container terminal plays an important logistical role in handling transshipping containers. Therefore, location information regarding vehicles that carry containers in a port is critical to costand timeefficient management for harbor automation. In terms of scalability, cost, and energy efficiency, an active radio-frequency-identification (RFID) based real-time locating system (RTLS) is an ap...

The analysis of multiple-input multiple-output (MIMO) channel capacity is important for developing and optimizing high-speed wireless communication systems that can meet the growing demand data-intensive applications. This study aims to analyze 4 × MIMO outdoor urban rural environments using NYUSIM simulator. models are designed 28 GHz 39 frequencies both line-of-sight (LOS) non-line-of-sight (...

This article illustrates the controlling mechanism along with data transmission using optical camera communication in both line-of-sight and non-line-of sight (NLOS) environment. The transmitter of system is mainly composite microcontroller (Arduino Mega), DHT sensor, two LEDs, four push button switches. Here, LEDs are continuously transmitting control signal. signal operated through We have us...

The ability to estimate radio coverage accurately is fundamental for planning and optimizing any wireless network, notably when a new generation, as the 5 th Generation (5G), in an early deployment phase. knowledge acquired from of previous generations must be revisited, particularly used path l...

This paper integrates UWB (ultra-wideband) and IMU (Inertial Measurement Unit) data to realize pedestrian positioning through a particle filter in a non-line-of-sight (NLOS) environment. After the acceleration and angular velocity are integrated by the ZUPT-based algorithm, the velocity and orientation of the feet are obtained, and then the velocity and orientation of the whole body are estimat...

Efficient millimeter wave (mmWave) beam selection in vehicle-to-infrastructure (V2I) communication is a crucial yet challenging task due to the narrow mmWave beamwidth and high user mobility. To reduce search overhead of iterative discovery procedures, contextual information from light detection ranging (LIDAR) sensors mounted on vehicles has been leveraged by data-driven methods produce useful...

The non-line-of-sight (NLOS) underwater communication can offer a viable route in signal propagation and coverage, thus mitigating the pointing, acquisition, tracking difficulties line-of-sight optical communication. However, implementing NLOS link is non-trivial. While technique relies on light scattering, i.e., channel turbulence facilitate communication, associated path-loss (PL) be signific...

This paper presents a non-line-of-sight (NLOS) localization technique and its system for a quiet and known environment that uses first-arrival low-frequency acoustic signals. The proposed technique first measures the time-of-arrivals (ToAs) of the first-arrival low-frequency sounds. The technique then estimates the location of a target by minimizing the differences between the measured ToAs and...