Wireless Communications and Networks

Instructor(s): Professor Periklis Chatzimisios
Teaching Hours and Credit Allocation: 30 Hours, 6 Credits
Course Assessment: Exam & Coursework


The course aims at studying fundamental principles of current and forthcoming mobile and wireless networks. Building on the knowledge gained during the 1st term course on Computer Networks, it analyzes how the basic networking operations are affected by the additional challenges of mobile and wireless environments but also the particularities of novel networking paradigms that are currently in the phase of research or initial/experimental deployments. Hence, the course covers cellular networks (mobile macrocellular and local area ones), but also more distributed and user-driven networking and service paradigms such as wireless multihop and opportunistic networks, as well as participatory sensing and mobile crowdsensing.

Learning Outcomes

By successfully completing the course students are expected to have:

  • understood the particular challenges that wireless and mobile (distributed) environments place on basic networking operations
  • gained knowledge about fundamental design principles (e.g., cellular architecture, mobility management) that address these challenges and developped basic network design skills
  • familiarized themselves with different cellular communication technologies and standards (3G, LTE, WLANs) for engineering mobile cellular networks
  • developped a good a understanding of novel, highly distributed, wireless networking paradigms such as wireless ad hoc networks and opportunistic networks and the way networking is realized over them
  • been exposed to the latest trends in the area of participatory sensing and mobile crowdsensing, which combine the power of the crowdsourcing principle with the growing functionality of smart mobile devices


  • Challenges for the operation of mobile and wireless networks
    • user/device mobility, wireless environment
  • Fundamental principles of mobile cellular networks:
    • cellular architecture (frequency reuse, sectoring, capacity vs. coverage)
    • mobility management (macro- and micro-mobility, handovers), location management
  • Current cellular systems and standards:
    • GSM/GPRS, 3G, LTE, WLANs
  • Network-, transport- and application-layer adaptations for wireless environments
    • Mobile IP, TCP enhancements, proxies
  • Wireless multihop and ad hoc networks
    • additional challenges due to their distributed operation
    • routing metrics (ETX, WCETT) and routing protocol (DSDV, DSR, OLSR) solutions and tradeoffs
    • transport solutions (non TCP solutions, hop-by-hop)
  • Opportunistic networking (Delay Tolerant Networks)
    • the store-carry-and-forward principle, intermittently connected networks
    • forwarding and routing under deterministic mobility (controlled flooding vs. utility-based and socioaware approaches)
  • Participatory networking and mobile crowdsensing
    • smart spaces and pervasive computing
    • sensor/smartphone selection, incentive provision, applications


Schiller J. (2003) Mobile Communications, Addison Wesley, 2nd edition.