Martin Maier – författare

Considering the key evolutions within the access network technologies as well as the unprecedented levels of bandwidth demands by end users, this book condenses the relentless research, design, and deployment experience of state-of-the-art access networks.

Optical Switching Networks describes all the major switching paradigms developed for modern optical networks, discussing their operation, advantages, disadvantages and implementation. Following a review of the evolution of optical WDM networks, an overview of the future trends out. The latest developments in optical access, local, metropolitan, and wide area networks are covered, including detailed technical descriptions of generalized multiprotocol label switching, waveband switching, photonic slot routing, optical flow, burst and packet switching. The convergence of optical and wireless access networks is also discussed, as are the IEEE 802.17 Resilient Packet Ring and IEEE 802.3ah Ethernet passive optical network standards and their WDM upgraded derivatives. The feasibility, challenges and potential of next-generation optical networks are described in a survey of state-of-the-art optical networking testbeds. Animations showing how the key optical switching techniques work are available via the web, as are lecture slides (www.cambridge.org/9780521868006).

The evolution of broadband access networks toward bimodal fiber-wireless (FiWi) access networks, described in this book, may be viewed as the endgame of broadband access. After discussing the economic impact of broadband access and current worldwide deployment statistics, all the major legacy wireline and wireless broadband access technologies are reviewed. State-of-the-art GPON and EPON fiber access networks are described, including their migration to next-generation systems such as OCDMA and OFDMA PONs. The latest developments of wireless access networks are covered, including VHT WLAN, Gigabit WiMAX, LTE and WMN. The advantages of FiWi access networks are demonstrated by applying powerful network coding, heterogeneous optical and wireless protection, hierarchical frame aggregation, hybrid routing and QoS continuity techniques across the optical-wireless interface. The book is an essential reference for anyone working on optical fiber access networks, wireless access networks or converged FiWi systems.

The latest developments and recent progress on the key technologies enabling next-generation 6G mobile networksToward 6G: A New Era of Convergence offers an up-to-date guide to the emerging 6G vision by describing new human-centric services made possible by combinations of mobile robots, avatars, and smartphones, which will be increasingly replaced with wearable displays and haptic interfaces that provide immersive extended reality (XR) experiences. The authors—noted experts on the topic—include a review of their work and information on the recent progress on the Tactile Internet and multi-sensory haptic communications. The book highlights decentralized edge computing in particular via Ethereum blockchain technologies, most notably the so-called decentralized autonomous organization (DAO) for crowdsourcing of human skills to solve problems that machines (such as autonomous artificial intelligence agents and robots) alone cannot solve well.The book also contains a review of the most recent and ongoing work on XR (including virtual/augmented/mixed reality). Specifically, the book describes the implications of the transition from the current gadgets-based Internet to a future Internet that is evolving from bearables (such as smartphones), moves towards wearables (for example Amazon's recently launched voice-controlled Echo Loop ring, glasses, and earbuds), and then finally progresses to nearables with embedded computing technologies and intelligent provisioning mechanisms for the delivery of human-intended services, including sixth-sense perceptions, in a 6G post-smartphone era. This important text: Offers a review of the 6G network architectures and key enabling technologiesExplains why 6G should not be a mere exploration of more spectrum at high-frequency bands, but rather a convergence of upcoming technological trendsDescribes the Tactile Internet's human-in-the-loop centric design principles and haptic communications modelsIncludes analytical frameworks to estimate the fluid orchestration of human + machine co-activities across unified communication network infrastructuresExplores the performance gains of cooperative computation offloading with communications and computation limitations in both fronthaul and backhaulWritten for students, network researchers, professionals, engineers, and practitioners, Toward 6G: A New Era of Convergence explores the most recent advances on the key technologies enabling next-generation 6G mobile networks, with an emphasis on their seamless convergence.

This book weaves emerging themes in future 6G and Next G networks carefully together. It points to three spheres of contexts with different narratives for the year 2030 and beyond, in which the coming Metaverse as the precursor of the future Multiverse can be embedded naturally. The book aims at providing the reader with new cross-disciplinary research material, ranging from communication and computer science to cognitive science, social sciences, and behavioral economics, for building a deeper Metaverse. It will be instrumental in helping the reader find and overcome some of the most common 6G and Next G blind spots.Modern networks are more than communication and computer science. They may be better viewed as techno-social systems that exhibit complex adaptive system behavior and resemble biological superorganisms. 6G and especially Next G should go beyond continuing the linear incremental 6G=5G+1G mindset of past generations of mobile networks. To this end, the book: Helps readers inquire into new areas of knowledge or understanding that they didn’t have or didn't pay attention to find their 6G/Next G blind spotsHighlights the unique potential benefits of the virtual world for society in that it provides a useful extension of the real-world economy by compensating for its well-known market failures, e.g., rising income inequalityProvides a comprehensive description of the original Metaverse vision and highlights the different Metaverse components, applications, open research challenges, and early Metaverse deployment examples from both industry and academiaDescribes how the Multiverse goes beyond the Metaverse origins and explores the importance of experience innovation since experiences play a central role in the MetaverseExplains Web3 and the emerging field of token engineering and tokenization, i.e., the process of creating tokenized digital twins via programmable tokens, which are viewed as the killer application of Web3 networks for creating technology-enabled social organisms and restoring tech-driven common goodsReviews anticipated 6G paradigm shifts and elaborates on the difference between 6G and Next G research, including Next G Alliance's audacious goals and their symbiotic relationship between technology and a population's societal and economic needsDoubles down on the mutually beneficial symbiosis between digitalization and biologization for our possible evolution into future metahumans with infinite capabilities by making us smarter and creating a fundamentally new form of sociality in the Metaverse and Multiverse as well as the future stigmergy enhanced Society 5.0 by leveraging on time-tested self-organization mechanisms borrowed from naturePresents a variety of different concepts of the true nature of reality that bring us closer to the original Metaverse vision and explains how 6G, Next G, and the Metaverse may eventually pave the way to the peak-experience machine that democratizes access to the upper range of human experiencesTouches on the possible transition from communication to services beyond communication, most notably the cross-cultural phenomenon of communitas in anthropology and its increasing degrees of perceived connectedness with others, the world, and oneself, given the importance of creating a deep sense of community in the MetaverseWritten for students, network researchers, professionals, engineers, and practitioners, 6G and Onward to Next G: The Road to the Multiverse explores the latest Internet developments, with a particular focus on 6G and Next G networks in the context of the emerging Metaverse and future Multiverse as the successors of today’s mobile Internet that has defined the last two decades.

"Metropolitan Area WDM Networks: An AWG-Based Approach" provides a comprehensive and technically detailed overview of the latest metropolitan area WDM network experimental systems, architectures and access protocols. Its main focus is on the novel star WDM networks based on a wavelength-selective Arrayed-Waveguide Grating (AWG). Network researchers, engineers, professionals and graduate students should benefit from the thorough overview and gain an in-depth understanding of current and next-generation metro WDM networks. The AWG based metro star WDM network is discussed at length and extensively investigated by means of stochastic analyses and simulations.The book provides: an up-to-date overview of ring and star metro WDM networks and access protocols; in-depth performance comparison studies of AWG based multihop versus single-hop WDM networks and AWG versus Passive Star Coupler based single-hop WDM networks; a thorough description of the AWG based network and node architectures and access protocols; a novel highly-efficient approach to provide survivability for star WDM networks; extensive analytical results for both unicast and multicast variable-size packet traffic and bandwidth on demand; and supplementary simulation results, including packet header trace files.

Considering the key evolutions within the access network technologies as well as the unprecedented levels of bandwidth demands by end users, this book condenses the relentless research, design, and deployment experience of state-of-the-art access networks.

Metropolitan Area WDM Networks: An AWG Based Approach provides a comprehensive and technically detailed overview of the latest metropolitan area WDM network experimental systems, architectures, and access protocols. Its main focus is on the novel star WDM networks based on a wavelength-selective Arrayed-Waveguide Grating (AWG). Network researchers, engineers, professionals, and graduate students will benefit from the thorough overview and gain an in-depth understanding of current and next-generation metro WDM networks.The AWG based metro star WDM network is discussed at length and extensively investigated by means of stochastic analyses and simulations. The book provides: *an up-to-date overview of ring and star metro WDM networks and access protocols, *in-depth performance comparison studies of AWG based multihop vs. single-hop WDM networks and AWG vs. Passive Star Coupler based single-hop WDM networks, *a thorough description of the AWG based network and node architectures and access protocols, *a novel highly-efficient approach to provide survivability for star WDM networks, *extensive analytical results for both unicast and multicast variable-size packet traffic and bandwidth on demand, *supplementary simulation results, including packet header trace files.