The lectures Mobile and Wireless Systems I and II give a bottom-up introduction to the area of mobile and wireless communication systems. The main goal is to give a fundamental understanding of the principles behind wireless transmission and networking. Current technologies, such as UMTS and IEEE 802.11, are used as examples to explain these principles. Moreover, a whole chapter is dedicated to ad hoc and sensor networks. The lectures are complemented by group projects, whose results are discussed in class.

 0  Introduction and Overview

• Different kinds of mobility
• Overview and classification of current wireless technologies
• Key challenges in mobile and wireless systems

Part I: Transmission Perspective

 1  Antennas

• Antenna types
• Production of electromagnetic waves
• Energy and power of electromagnetic waves
• Radiation intensity, directivity, and gain
• Antenna reception

 2  Radio propagation and channel modeling

• Path loss and shadowing (propagation in free space, generalized path loss models, shadow fading)
• Multipath propagation (small-scale fading, time and frequency spread, time- and frequency-variant behavior)
• Fading mitigation techniques

 3  Coding, Modulation, and Duplexing

• Representation of signals
• Conversion from analog to digital
• Channel coding (overview, block coding, convolutional coding, coding gain, channel coding in practice, turbo coding)
• Digital modulation (overview, linear modulation, coherent demodulation, modulation in practice, performance analysis, spead spectrum modulation)
• Duplexing

Part II: Multi-User Link Perspective

 4  Multiple access (TDMA, FDMA, CDMA, SDMA)

 5  Cellular concept and radio resource planning

 6  MAC protocols (ALOHA, Slotted ALOHA, CSMA, CSMA/CA; performance)

Case study

 7  Wireless LAN 802.11

Part III: Network and Security Perspective

 8  Network Architecture and Mobility Protocols of Mobile Networks

• Architecture of cellular networks
• Mobility in cellular networks (GSM and UMTS)
  • Addressing
  • Location management, paging, roaming
  • Handover
• Mobility in the Internet
  • Addressing
  • Stateful and stateless autoconfiguration)
  • Mobile IP
  • Service discovery

 9  Security in Mobile Networks

• Basics
• Security in GSM and UMTS

Part IV: Current Topics

 10  Ad Hoc and Sensor Networks

• Applications
• Connectivity
• Capacity
• Routing
• Wireless Sensors

 11  Radio Frequency Identification (RFID)

Part V Application Perspective

 12  Mobile Applications and Services

 13  Application and Service Platforms

 14  Economic, Health, and Social Aspects

The complete set of slides is available here.