Global Communications and Signal Processing 2014

IEEE Global Conference on Signal and Information Processing (GlobalSIP) is a recently launched flagship conference of the IEEE Signal Processing Society. GlobalSIP 2014 focus broadly on signal and information processing with an emphasis on up-and-coming signal processing themes. It was a truly rare, interesting, and learning experience to attend GlobalSIP and GlobalCom within two weeks in Dec, 2014. It enables you to compare the research interests, trend in the two major areas that are closely coupled with each other. Indeed I have met many people who attended both conferences.

GlobalSIP has in total 13 symposia this year. While featuring more traditional signal processing areas like speech processing, multimedia signal processing, Signal Processing for Cognitive Radios and Networks, Massive MIMO Communications, etc., there are also much newer research areas like network theory, Energy Efficiency and Energy Harvesting Related Signal Processing and Communications, and of course, the famous “big data”, and so on. For example, understanding networks and networked behavior has emerged as one of the foremost intellectual challenges of the 21st century. It is fair to say that in the last fifty years we have been able to engineer networks that have transformed our world. Yet, while we obviously master the technology to do so, our theoretical understanding of fundamental phenomena that arise in networked systems remains limited. There are many interesting presentations in this conference discussing the research into the various phenomena that can be addressed using signal processing tools. There are also several interesting exhibitions, for example, NI demonstrated a 28GHz 5G testbed. Indeed much more testbeds from industry, almost most major telecom companies, were  demoed in Globecom.

Globecom this year was even more exciting and featured excellent industry programs, e.g.  Workshop on Emerging Technologies for 5G Wireless Cellular Networks, where Jens was invited to give a plenary talk, etc. After several years discussion, it seems most companies started narrowing down their focus and converging to some consensus about what 5G might look like. Many of the telecom companies demonstrated their technologies. For example Huawei claimed 5G is defined today and exhibited their sparse code multiple access testbed.

In the conference, we presented our recent research results on “Energy-Efficient Clustering Design for M2M” and “Energy Efficient MAC for Cellular-Based M2M
Communications”. Machine-to-machine (M2M) communications in cellular networks enables Internet of Things in the macro geographical regions and is a promising technique in next-generation wireless networks. We studied energy-efficient clustering design in cellular networks to maximize the overall network battery life time. We propose a new clustering design which finds the optimal number of clusters in a cellular network, and maximizes the network energy efficiency, meanwhile rules of selecting and rotating cluster heads. Different from existing clustering designs, we consider both transmission and circuit energy consumption in this paper. The network performance will be both rigorously analyzed and evaluated using simulations with respect to dead device ratio [1], residual energy, and network life. In addition, an energy efficient scalable medium access control (MAC) is crucial for serving massive battery-driven machine-type devices. We have also investigated the energy efficient MAC design to minimize battery power consumption in cellular-based M2M communications. We present an energy efficient MAC protocol that not only adapts contention and reservation-based protocols for M2M communications in cellular networks, but also benefits from partial clustering to handle the massive access problem. Then we investigate the energy efficiency and access capacity of contentionbased protocols and present an energy efficient contention-based protocol for intra-cluster communication of the proposed MAC, which results in huge power saving. The lifetimes of both individual nodes and the whole M2M network are significantly extended.

Another important mission in Globecom, taking pictures of our newly published book: “Energy and spectrum efficient wireless network design”. The results are below. Well, it seems also a feature of the publisher booth…

In case you’re curious about what this book is about: Covering the fundamental principles and state-of-the-art cross-layer techniques, this practical guide provides the tools needed to design MIMO- and OFDM-based wireless networks that are both energy- and spectrum-efficient. Technologies are introduced in parallel for both centralized and distributed wireless networks to give you a clear understanding of the similarities and differences between their energy- and spectrum-efficient designs, which is essential for achieving the highest network energy saving without losing performance. Cutting-edge green cellular network design technologies, enabling you to master resource management for next-generation wireless networks based on MIMO and OFDM, and detailed real-world implementation examples are provided to guide your engineering design in both theory and practice. Whether you are a graduate student, a researcher or a practitioner in industry, this is an invaluable guide.

If you would like to buy a copy of this book, don’t forget to tell me and author discount can be provided!

book published.

book published.


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