Waled Gheth

• Doctor of Philosophy
• Tutor at Manchester Metropolitan University

The last decade has witnessed the rise of the proliferation of Internet-enabled devices. The Internet of Things (IoT) is becoming ever more pervasive in everyday life, connecting an ever-greater array of diverse physical objects. The key vision of the IoT is to bring a massive number of smart devices together in integrated and interconnected hetero...

Modern railway services are required to deliver good quality services to the passenger throughout the whole journey. These include improved performances, safety, and reduce delays. There is also the requirement for in‐train customer experience such as infotainment and access to reliable communication systems. The railway industry has employed diffe...

The line-of-sight (LoS) channel is one of the requirements for efficient data transmission in visible-light communications (VLC), but this cannot always be guaranteed in indoor applications for a variety of reasons, such as moving objects and the layout of rooms. The relay-assisted VLC system is one of the techniques that can be used to address thi...

The mission-critical internet of things (IoT) has recently evolved to cover many applications such as e-health, power distribution systems, industrial and smart homes and cities. Such applications are anticipated to work every time without any fail which requires constant data transmission. Hybrid communication systems are often used to provide rel...

Relaying systems, such as amplify-and-forward (AF), decode-and-forward (DF), selective DF (SDF) and incremental DF (IDF) relaying are usually used to ensure high performance and reliability for communication systems. A comprehensive energy efficiency performance study for different half-duplex relaying protocols, namely DF, SDF and IDF over visible...

The transmit power of communication signals over power lines is limited due to restrictions imposed by regulatory bodies and standards. In this paper, the electromagnetic emissions from two different power line communication (PLC) modems are measured in different indoor environments in the frequency range between 1–30 MHz. The obtained measurements...

In multi-hop wireless communication, a sensor node should consume its energy efficiently for relaying of data packets. However, most of the IoT-devices are equipped with limited battery power and computing resources for wireless communications thus energy optimization becomes one of the major concerns in wireless sensors routing design. The wireles...

This paper presents a comprehensive performance analysis of an integrated indoor power line communication (PLC)/visible light communication (VLC) system with the presence of a decode-and-forward (DF) relay. The existing indoor power line networks are used as the backbone for VLCs. The performance of the proposed system is evaluated in terms of the...

Reliable data transmissions and offering better mobility to the end user can be achieved by integrating different communication systems. In this paper, we investigate the performance of a cascaded indoor power line communication (PLC)/visible light communication (VLC) system with the presence of an amplify-and-forward (AF) relay. Using the pre-inst...

The high attenuation which increases as frequency increases in power line communication systems (PLC) makes achieving and sustaining high data rates over such channels a challenging task. In most communication systems, relays are normally deployed to overcome the effect of signal attenuation and to achieve reliable transmissions between users. Ampl...

Impulsive noise is one of the main impairments over power line channels. In this respect, this paper presents the available impulsive noise models and then reviews and compare several existing mitigation techniques proposed in the literature. These methods include multi-carrier modulation, nonlinear preprocessors, multiple-input multiple-output, co...