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New Directions in Wireless Communications Systems
Editors of New Directions in Wireless Communications Systems
Athanasios (Thanasis) G. Kanatas is a professor on the Division of Digital Systems and dean of the Faculty of Data and Communication Applied sciences on the College of Piraeus, Greece.
He obtained his diploma in electrical engineering from the Nationwide Technical College of Athens (NTUA), Greece, in 1991, MSc diploma in satellite tv for pc communication engineering from the College of Surrey, Surrey, UK in 1992, and earned his PhD diploma in cell satellite tv for pc communications from NTUA, Greece in February 1997.
From 1993 to 1994 he was with Nationwide Documentation Middle of the Nationwide Analysis Institute. In 1995, he joined SPACETEC Ltd. as technical mission supervisor for VISA/EMEA VSAT Venture in Greece.
In 1996, he joined the Cellular Radiocommunications Laboratory as a analysis affiliate. From 1999 to 2002, he was with the Institute of Communication and Pc Systems answerable for the technical administration of assorted analysis tasks.
In 2000, he turned a member of the board of administrators of OTESAT S.A. In 2002, he joined the College of Piraeus as an assistant professor. He has printed greater than 150 papers in worldwide journals and worldwide convention proceedings.
He’s the creator of 6 books in the sector of wi-fi and satellite tv for pc communications. He has been the technical supervisor of a number of European and Nationwide R&D tasks.
His present analysis pursuits embrace the event of latest digital strategies for wi-fi and satellite tv for pc communications methods, channel characterization, simulation, and modeling for cell, cell satellite tv for pc, and future wi-fi communication methods, antenna choice and RF preprocessing strategies, new transmission schemes for MIMO methods, V2V communications, and vitality environment friendly strategies for wi-fi sensor networks.
He has been a senior member of IEEE since 2002. In 1999, he was elected chairman of the Communications Society of the Greek Part of IEEE. He has been a member of the TPC of greater than 40 worldwide IEEE conferences.
He was a corecipient of two greatest paper awards for papers printed in the Worldwide Convention on Advances in Satellite tv for pc and House Communications (SPACOMM), Athens, Greece, (2010) and International Wireless Summit, Wireless VITAE, Atlantic Metropolis, United States, (2013).
Konstantina (Nantia) S. Nikita obtained her diploma in electrical engineering and earned her PhD diploma from the Nationwide Technical College of Athens (NTUA), in addition to MD diploma from the Medical Faculty, College of Athens.
From 1990 to 1996, she labored as a researcher on the Institute of Communication and Pc Systems.
In 1996, she joined the Faculty of Electrical and Pc Engineering, NTUA, as an assistant professor, and since 2005, she serves as a professor on the identical faculty. Furthermore, she is an adjunct professor of Biomedical Engineering and Medication, Keck Faculty of Medication and the Viterbi Faculty of Engineering, College of Southern California.
She has authored or coauthored 165 papers in refereed worldwide journals, 41 chapters in books, and greater than 300 papers in worldwide convention proceedings. She is the editor of seven books in English and creator of two books in Greek. She holds three patents.
She has been the technical supervisor of a number of European and Nationwide R&D tasks. She has been honorary chair/chair of this system/organizing committee of a number of worldwide conferences, and has served as a keynote/invited speaker at worldwide conferences, symposia, and workshops organized by NATO, WHO, ICNIRP, IEEE, URSI, and so forth.
She has been the advisor of 27 accomplished PhD theses, a number of of which have obtained varied awards. Her present analysis pursuits embrace biomedical telemetry, organic results and medical functions of radiofrequency electromagnetic fields, biomedical sign and picture processing and evaluation, simulation of physiological methods, and biomedical informatics.
She is an affiliate editor of the IEEE Transactions on Biomedical Engineering, the IEEE Journal of Biomedical and Well being Informatics, the IEEE Transactions on Antennas and Propagation, the Wiley Bioelectromagnetics, and the Journal of Medical and Organic Engineering and Computing.
She has obtained varied honors/awards, with the Bodossakis Basis Tutorial Prize (2003) for distinctive achievements in “Idea and Purposes of Data Know-how in Medication” being one in every of them.
She has been a member of the board of administrators of the Atomic Power Fee and of the Hellenic Nationwide Tutorial Recognition and Data Middle, in addition to a member of the Hellenic Nationwide Council of Analysis and Know-how.
She has additionally served because the deputy head of the Faculty of Electrical and Pc Engineering of the NTUA.
She is a member of the Hellenic Nationwide Ethics Committee, a founding fellow of the European Affiliation of Medical and Organic Engineering and Science (EAMBES), a fellow of the American Institute of Medical and Organic Engineering (AIMBE), and a member of the Technical Chamber of Greece and of the Athens Medical Affiliation.
She can also be a member of the BHI Technical Committee, the founding chair and ambassador of the IEEE– EMBS, Greece chapter and has served because the vice-chair of the IEEE Greece Part.
Panagiotis (Takis) Mathiopoulos is a professor of telecommunications on the Division of Informatics and Telecommunications, College of Athens, Greece.
Previous to that, he was with the Institute for House Purposes and Distant Sensing (ISARS) of the Nationwide Observatory of Athens, first as its director (2001–2005) after which as director of analysis (2006–2014).
From 1989 to 2003, he was a college member in the Division of Electrical and Pc Engineering, the College of British Columbia (UBC), the place he was a professor from 2000 to 2003.
From 2008 to 2013, he was appointed as visitor professor on the Southwest Jiaotong College, China. He has been additionally appointed by the Authorities of Individuals’s Republic of China as a senior overseas professional on the Faculty of Data Engineering
Yangzhou College (2014–2016) and by Keio College as a visiting (International) professor in the Division of Data and Pc Science (2015–2016 and 2017–2018) underneath the High International College Venture of the Ministry of Schooling, Tradition, Sports activities, Science
And Know-how (MEXT), Authorities of Japan. For the previous 25 years, he has been conducting analysis primarily on the bodily layer of digital communication methods for terrestrial and satellite tv for pc functions, together with digital communications over fading and interference environments.
He coauthored a paper in GLOBECOM’89 establishing for the primary time in the open technical literature the hyperlink between most probability sequence estimation (MLSE) and a number of (or multisymbol) differential detection for the AWGN and fading channels.
He’s additionally in channel characterization and measurements, modulation and coding strategies, synchronization, SIMO/MIMO, UWB, OFDM, software program/cognitive radios, inexperienced communications, and 5G.
As well as, since 2010, he has been actively concerned in analysis actions in the fields of distant sensing, LiDAR methods, and photogrammetry. In these areas, he has coauthored greater than 110 journal papers, primarily printed in varied IEEE and IET journals, 4 ebook chapters, and greater than 120 convention papers.
Prof. Mathiopoulos has been or at the moment serves on the editorial board of a number of archival journals, together with the IET Communications, and the IEEE Transactions On Communications (1993–2005).
He has repeatedly acted as a advisor for varied governmental and personal organizations. Since 1993, he has served frequently as a scientific advisor and a technical professional for the European Fee (EC).
As well as, from 2001 to 2014, he has served as a Greek consultant to excessive degree committees in the European Fee (EC) and the European House Company (ESA).
He has been a member of the TPC of greater than 70 worldwide IEEE conferences, in addition to TPC vice-chair for the 2006-S IEEE VTC and 2008-F IEEE VTC in addition to cochair of FITCE2011.
He has delivered quite a few invited displays, together with plenary and keynote lectures, and has taught many quick programs everywhere in the world. As a college member on the ECE of UBC, he was elected as ASI fellow and a Killam analysis fellow.
He was a corecipient of two greatest paper awards for papers printed in the 2nd Worldwide Symposium on Communication, Management, and Sign Processing (2008) and third Worldwide Convention on Advances in Satellite tv for pc and House Communications (2011).
New Directions Contents
- Propagation Measurement-Primarily based Wireless Channel
- RF Channel Modeling for 5G Systems
- Advances in Millimeter Wave Propagation for 5G Cellular Communication Systems
- Fundamentals on the Idea of Fading Channels and Range
- Multicarrier Modulation Schemes—Candidate Waveforms for 5G.
- RF Planning for Subsequent-Technology Systems
- MIMO Methods for 5G Systems
- Channel-Dependent Precoding for Multiuser Entry with Load-Managed Parasitic Antenna Arrays
- Spatial Modulation for 5G Systems
- Gadget-to-Gadget Communication Elements for 5G Mobile Networks
- Administration of Sources in Digital Radio Networks
- Relays and Cooperative Methods for 5G Systems
- Radio Sources Administration Optimization in Cognitive RadioNetworks
- Rising Applied sciences for Cellular Well being
Preface to New Directions in Wireless Communications Systems
We’re experiencing the daybreak of what’s referred to as the digital age. The Web and digital applied sciences are reworking our world.
Wireless communication methods represent a fundamental part of the present and the long run data society. The fifth technology of communication methods, or 5G, shall be, in the years to come back, essentially the most crucial constructing block of what’s known as a digital society.
It’s anticipated that 5G shall be a very converged community surroundings, as a result of not solely cell communications methods but additionally different wi-fi methods and wired networks will coexist and use the identical infrastructure.
The imaginative and prescient forward is that 5G will present just about ubiquitous, ultra-fastbroadband, connectivity not solely to tens of millions of particular person customers but additionally to billions of related objects.
Due to this fact, 5G methods ought to have the capabilities to (a) serve the datahungry gadgets, for instance, smartphones and tablets, offering charges of Gbps; (b) allow machine-to-machine (M2M) communications, for instance, vehicle-tovehicle (V2V) networks; (c) permit for interconnectivity of huge gadgets, for instance, sensors and e-health tools; and (d) assist a variety of functions and sectors.
All these expectations set all kinds of technical necessities for the design of 5G methods, together with greater peak and person information charges, extraordinarily low latency and response instances, enhanced indoor and out of doors protection, considerably elevated variety of gadgets, reaching the astronomical variety of 100 billion, seamless mobility, safety and privateness, elevated battery lifetime, and improved high quality of service (QoS) whereas sustaining low operational prices.
All of the predictions out there in the literature result in the conclusion that past 2020, wi-fi communication methods will be capable of assist greater than 1000 instances the visitors quantity served at this time by the present telecommunication methods.
This extraordinarily excessive visitors load is likely one of the main points confronted by the 5G designers, producers, and researchers, alike.
It seems that this problem shall be addressed by a mixture of parallel strategies that can use extra spectrum extra flexibly, understand greater spectral effectivity, and densify cells. Due to this fact, novel strategies and paradigms ought to be developed to assist such challenges.
On this context, this ebook addresses various key-point problems with the nextgeneration wi-fi communication methods and makes an attempt to establish promising options.
The core of the ebook offers with the strategies and strategies belonging to what’s usually known as radio entry community.
The elevated wants and the customers’ expectations from the next-generation methods have been primarily based for lengthy on enabling applied sciences offered by the bodily layer. These applied sciences are primarily developed to fight sign degradations imposed by the wi-fi channel and to assist elevated person information charges and improved QoS.
Chapter 1 presents an outline of the wave propagation and modelling of radio channels with traits that change in time and house.
Then, the affect of multipath propagation on the signal-distorting traits of wi-fi channels and the ensuing results on digital communications are outlined.
Each narrowband and wideband channel modeling is mentioned with ideas for assessing whether or not a wide-sense stationary (WSS) mannequin is suitable and for modeling channel processes with nonstationary traits and correlated scattering.
Spatial channel characterization and MIMO channel fashions are reviewed and the measurement tools and strategies are offered.
Furthermore, in Chapter 2, varied channel fashions are in contrast, modeling strategies concerned (stochastic, ray-tracing, and many others.) are analyzed, and the functions of the concerned principle in optimizing the cell planning procedures are demonstrated.
The millimeter-wave (mm-Wave) band has been foreseen for the event of 5G networks. A considerable amount of spectral house, from 28 to 95 GHz, is accessible to ascertain such methods offering elevated information charges.
Therefore, the design problems with such networks necessitate the thorough information of mm-Wave propagation traits.
In Chapter 3, the state-of-the artwork channel fashions, derived from the newest measurement campaigns in varied propagation eventualities (indoor, out of doors, and many others.) are offered.
As well as, fashions that describe the spatial–temporal variations of the mm-Wave channel are defined. Latest advances of MIMO and large MIMO expertise exploitation in mm-Wave propagation are additionally examined.
Chapter 4 presents the basic ideas and fundamental theoretical instruments for the qualitative evaluation of fading channels.
This part helps the reader to grasp the character and varieties of fading, the essential traits of a wi-fi channel, and the affect of fading on sign transmission.
Fading mitigation strategies are offered, and an entire classification of the present transmit/obtain range strategies that exploit the spatial, frequency, time, and the polarization domains, can also be offered.
OFDM modulation and OFDM-based transmission schemes (e.g., OFDMA) have dominated the present trendy wi-fi requirements.
Nonetheless, regardless of OFDM’s implementation simplicity, some key weaknesses reminiscent of the necessity for prolonged guard bands resulting in lowered spectral effectivity, the elevated peak-to-average energy ratio, and its inherent sensitivity to frequency offset impairments have motivated in the analysis of different multicarrier or single-carrier modulation strategies primarily based on filter banks.
Due to this fact, Chapter 5 opinions crucial modulation and multicarrier schemes, together with OFDM which have turn into sturdy candidates for the long run generations of wi-fi requirements.
The 5G radio entry shall be constructed on each new radio entry applied sciences (RATs) and the advanced current wi-fi applied sciences (LTE, HSPA, GSM, and WiFi). Chapter 6 supplies an outline of radio community planning strategies from 2G to 4G.
Then it describes the energy-efficient inexperienced radio community planning idea for heterogeneous 4G wi-fi networks and presents a mobile structure adaptation technique. The incorporation of MIMO transmission in the fashionable wi-fi requirements has offered a big enchancment in the achieved spectral effectivity and system capability.
As expertise strikes towards 5G, the idea of MIMO has been advanced with the definition of complicated centralized schemes, reminiscent of huge MIMO, or decentralized schemes, that’s, community MIMO and coordinated multipoint transmission.
Furthermore, various superior MIMO schemes lowering the variety of required RF chains, enabling full duplex communications, and permitting using compact antennas have been thought of.
Chapter 7 opinions crucial tendencies and challenges in MIMO transmission with emphasis on their utility to 5G methods.
Various enabling applied sciences are additionally offered. For example, Chapter 8 introduces the load-controlled parasitic antenna arrays (LC-PAA) that resemble the operation of typical antenna arrays with many parts, thus boosting the efficiency of multiantenna wi-fi communication methods, whereas on the identical time offering value and vitality consumption financial savings and dimension discount.
Due to this fact, a novel technique is offered that allows one to carry out arbitrary channel-dependent precoding with LC-PAAs. The doable utility of this method in point-to-point MIMO, multiuser MIMO (MU-MIMO), coordinated MIMO, and large MIMO setups is investigated.
The design and implementation of assorted varieties of LC-PAAs for these frequency bands are additionally proven. Spatial modulation (SM) has been not too long ago proposed as a promising transmission idea that reduces the complexity and the price of multiple-antenna schemes.
On the identical time, it ensures excessive information charges, improved system efficiency, and vitality effectivity. Working rules of SM are offered in Chapter 9 and the benefits and downsides of SM-MIMO as in comparison with the state-of-theart MIMO communications are additionally mentioned.
Numerous transmission strategies for SM-MIMO, specifically house shift keying (SSK), generalized house shift keying (GSSK) and generalized spatial modulation (GSM) are additionally additional mentioned.
An analytical framework for the efficiency analysis of SM-MIMO over fading channels in phrases of the common bit error chance (ABEP) can also be offered.
Some MIMO transmission schemes intently associated to the SM-MIMO paradigm, that’s, single RF MIMO schemes, the incremental MIMO, and the antenna subset modulation (ASM) schemes, are briefly mentioned.
Furthermore, a number of functions of SM-MIMO for future 5G wi-fi communications are offered, together with MIMO implementations that exploit the huge MIMO paradigm in addition to the mixture of each orthogonal frequency division multiplexing (OFDM) and single provider with SM-MIMO.
Gadget-to-device (D2D) communication is acknowledged as one of many expertise elements of the evolving 5G structure.
The reuse of mobile sources by D2D hyperlinks which might be situated randomly inside a macro-cell imposes a cochannel interference to the bottom station (BS), mobile customers and to different D2D receivers.
A number of features of D2D communications are investigated in Chapter 10, reminiscent of interference statistics of interferers scattered in response to a homogeneous Poisson level course of, D2D neighbor discovery primarily based on signal-to-interference-and-noise ratio affiliation metric, D2D hyperlink efficiency in the presence of interference and energy management imposed by the BS, and the affect of mobility on the D2D hyperlink efficiency.
As well as, a V2V use case is taken into account and the efficiency of a multiuser cooperative V2V communication system is studied.
Subsequent, Chapter 11 addresses the virtualization of wi-fi entry in order to supply the required capability to a set of digital base stations (VBSs) with various necessities, instantiated in a given geographical space.
A community structure is offered, primarily based on a generic community virtualization surroundings, in which each bodily and digital views are thought of and the principle stakeholders are taken under consideration.
A brand new tier of radio useful resource administration (RRM) is proposed for inter-VNets (digital networks) RRM aiming at transposing the cooperative set of functionalities to the virtualization surroundings.
Cooperative strategies have considerably contributed towards bettering the capability of the 4G networks and are thought of as a fundamental component of the approaching 5G networks. This subject is addressed in Chapter 12 of this ebook.
Amongst cooperative strategies, cooperative relaying (CR) has obtained important consideration from researchers because of the positive aspects that it presents to the community. The strategies which have obtained a considerable amount of contributions are the opportunistic relay choice (ORS) and successive relaying (SuR) and a number of other insurance policies, reminiscent of successive opportunistic relaying (SOR) with full duplex (FD) operation and SOR for networks with buffer-aided (BA) relays that supply further levels of freedom in inter-relay interference (IRI) mitigation.
As well as, an outline of interference mitigation strategies designed for relay networks is offered. Cognitive radio networks (CRNs) have been proposed as a promising resolution to deal with the spectral shortage, and that is the principle subject of Chapter 13.
As well as, because the expertise of CRN will help to unlock the total potential of 5G wi-fi methods, the 5G key enablers are described and eventually the function of CRN in 5G networks can also be highlighted.
Moreover, a number of formulations of various CRN’s useful resource allocation issues are offered primarily based on varied mathematical approaches reminiscent of optimization strategies, recreation principle, matching principle, multicriteria decision-making principle, and machine studying.
The fundamental ideas of every strategy are described and an intensive checklist of scientific works can also be offered.
Lastly, varied future analysis avenues for the appliance of cognitive methods to 5G and the investigation of novel versatile algorithms in radio useful resource administration are additionally mentioned.
The final chapter (Chapter 14) focuses on transformational wi-fi applied sciences for well being care, discussing their potential and the challenges that rose.
As it’s well-known, the numerous advances in wi-fi communications, sensing applied sciences, and sensor information analytics are opening new alternatives in drugs, and are promising to handle the unsustainability of present well being care provision fashions.
Notably, well being care challenges, together with rising well being care prices, ageing populations, and rising illness threats rank among the many most severe considerations in the world.
Wireless expertise can empower each sufferers and medical suppliers by offering round the clock well being standing data.
Examples embrace wi-fi on-body (wearable, epidermal) and in-body (implantable, ingestible) medical gadgets which may be used as sensors, actuators, and/or drug supply gadgets.
Distant prognosis, very important parameter management, aged monitoring, and power illness administration are simply a number of the examples of functions of wi-fi applied sciences.
Exploitation of wi-fi applied sciences and sensor information analytics in well being care can result in more healthy residents, lowered hospital stays, and decrease prices. This ebook is devoted to Philip Constantinou, an inspiring professor, a priceless colleague, and a loyal buddy.
He was an distinctive professor who was at all times there for college students, who may perceive your ideas and considerations, who was the inspiration, and who gave confidence to the crew.
A sworn statement to this was the overwhelming response we obtained from many colleagues who wished to contribute to this ebook as a result of they wished to affix us in celebrating his analysis and academic achievements in the overall area of wi-fi communications for the previous 25 years.
Philip was a form human being, a beneficiant and a welcoming particular person open to the neighborhood, displaying nice concern and affection for individuals with particular wants.
Earlier than becoming a member of the Nationwide Technical College of Athens, Athens, Greece, he and his household have lived for a few years in Canada, the place he was granted the Grasp of Utilized Science by College of Ottawa and began his nice telecom profession in Telesat in Ottawa, Canada.
Then he labored for a number of years for the Authorities of Canada in the Division of Communications, whereas on the identical time pursuing his PhD diploma on the Carleton College, Ottawa, Canada.
Being a world man, he believed in openness, valued collaboration, and at all times tried to impart the significance of speaking engineering novelty to his college students.
He was at all times supportive to the junior communications engineers’ concepts and inspired them to behave on their very own initiative following their dream. Philip was a workaholic lab fanatic who cherished to ship working methods.
Though he was a zealous and motivated chief, he had a methodic strategy repeatedly reminding to his colleagues two of his favourite phrases: “One step at a time” and “I’m at all times a sensible man.”
His college students and his colleagues, alike, owe him an incredible debt of gratitude for making us really feel particular, sturdy, and able to doing issues.