Wireless technology is creating a revolution in communications. While systems such as broadcast radio and television have been around for many years, many new types of wireless communication systems are emerging such as digital cellular, personal communications services (PCS), and packet radio. Two powerful techniques are usually employed to make communication over wireless mobile fading channe...

This chapter of the report focuses on coding, modulation, and multiple-access techniques for wireless communications. To put the discussion in perspective, a short background on the development of wireless communication systems, focusing mainly on cellular systems is provided. The following sections discuss coding and modulation and various modulation techniques; present a comparative analysis ...

Wireless communications along with the Internet has been the most transformative technology in the past 50 years. We expect that wireless data growth driven by new mobile applications, need to connect all humankind (not just 1/3) as well as Billions of things to the Internet will require Terabit/s shared links for ground based local area and wide area wireless access, for wireless backhaul as w...

Multiple input multiple output (MIMO) systems in wireless communications refer to any wireless communication system where at both sides of the communication path more than one antenna is used. Systems utilizing multiple transmit and multiple receive antennas are commonly known as multiple input multiple output (MIMO) systems. This wireless networking technology greatly improves both the range a...

The tremendous development of communication systems is one of the main features of the last decades. These systems have become ubiquitous and reach virtually every home in large parts of the world. The resulting increase in tra c has been made possible by, or has necessitated, major improvements in the backbone of the networks, for example digital transmission and switching, and the use of opti...

The nature of human mobility demands that mobile devices become agile to diverse operating environments. Coping with such diversity requires the device to assess its environment, and trigger appropriate responses to each of them. While existing communication subsystems rely on in-band wireless signals for context-assessment and response, we explore a lateral approach of using out-of-band sensor...

This paper presents an overview of wireless automotive communication technologies, with the aim of identifying the strong candidates for future in-vehicle and inter-vehicle automotive applications. The paper first gives an overview of automotive applications relying on wireless communications, with particular focus on telematics. Then, the paper identifies the key networking technologies used f...

Wireless biomonitoring, first used in human beings for fetal heart-rate monitoring more than 30 years ago, has now become a technology for remote sensing of patients' activity, blood pulse pressure, oxygen saturation, internal pressures, orthopedic device loading, and gastrointestinal endoscopy. Technical advances in miniaturization and wireless communications have enabled development of monito...

The use of mobile devices, e.g., laptops, cell phones and PDAs, has become ubiquitous. Users expect to access very high-speed networks from anywhere and be able to communicate with other users, and share common resources such as printers, at high data rates. As a consequence, wireless local area networks (WLANs) have become the subject of intense research. WLANs are subject to more noise and in...