TutorialsTutorial 1 – T1
Half day tutorial
HSDPA, HSUPA, Security, IMS and 2.5G/3G-WLAN Interworking Technologies
by Dr. Mukesh Taneja, Texas Instruments, India Pvt. Ltd. BangaloreEmail: mukesht@ti.com
Abstract: TIn the first part of this talk, we give an overview of UMTS/WCDMA, High Speed Down Link Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA) systems. We first present UMTS architecture and show some of its limitations. We next give an overview of HSDPA that increases user peak data rates on downlink, improves QoS and spectral efficiency and helps to support more sophisticated data and multimedia services. It achieves this by introducing various features such as adaptive modulation and coding (AMC), 16QAM, short time transmission time interval (TTI), fast Layer 1 HARQ and an adaptive proportional fair MAC scheduler. We show impact of some of these features on mobile terminal and base station architecture in an HSDPA network. We next present some of the key features of the HSUPA / E-DCH systems. We focus on MAC and higher layers and abstract the physical layer. In the second part, we cover 3G terminal and network Security, VoIP, 2.5G/3G-WLAN interworking architecture and protocols, and IP Multimedia System (IMS).
Speaker’s biography: Dr. Mukesh Taneja
works as a Senior Technologist with Cellular Systems CTO office and CSSD at Texas Instruments. He held positions at Qualcomm’s Corp R&D, Fujitsu and Samsung prior to TI. Mukesh has been working in the areas of systems and software architecture, wireless standardization, performance modeling and simulation during the past 15+ years in industry and academia. He has filed patents in the areas of CDMA2000 1xEV-DO, HSDPA, OFDM, WiMAX and AdHoc wireless systems. Mukesh got his PhD from the University of California, San Diego, MS from Columbia University, ME from IISc Bangalore and BE from BITS, Pilani.
Tutorial 2 – T2Half day tutorial
Mobile Number Portability (MNP), Opportunities and Challenges
by Asoke Talukder the DaimlerChrysler Chair Professor
Email: asoke.talukder@iiitb.ac.in
Abstract: For many individuals, self-employed, professionals, or small businesses, mobile phone is their storefront. Vegetable vendors, plumbers, carpenters, electricians, and many such self-employed personnel use mobile phone as their business identity. Brokers and agents of various businesses are known by their mobile phone numbers. Professionals like doctors are also contacted through their mobile numbers. In many parts of India, auto-rickshaw drivers publish mobile phone numbers on the hood of the auto-rickshaw so that they can be contacted and booked like a radio taxi. The list is unlimited. Consumers are reluctant to change the existing network operator and go to a competitive operator – because, doing so would require them surrender their existing long held mobile phone number. Changing operator or the mobile phone number means losing touch with all the existing customers. The technology of mobile number portability (MNP) addresses this complex challenge. In MNP, the philosophy is that a mobile number is the property of the subscriber. Subscribers can carry the mobile number to any network of their choice. In MNP, a subscriber will be able to change the network service provider (NSP) and keep the same old mobile phone number. All calls to and from the old phone number will be serviced and billed by the new operator.
Various surveys suggest that number portability increases the competition, helps consumers, help network operators, and helps the economy directly. Survey conducted by Oftel suggests that number portability in UK would help the UK economy by about ? 450 millions. Another report suggests that in US $937 million has been collected by mobile networks operators for the number portability related services.
Through new laws US and European Union have directed the network operators to develop system so that consumers can port their numbers as they change network service providers. Many other countries in advanced economies in North America, South America, European Union, Singapore, Australia have already gone the MNP way. Other countries in the world are expected to adopt the MNP sooner or later. Debate has already started in India about mobile number portability. Therefore, we need to look at the technology challenges of number portability as a general challenge for telecommunication and economic growth.
The proposed tutorial will address the opportunities and challenges related to MNP. It will discuss the background of number portability. Why and how advanced economies went for it. What are the benefits and challenges associated with it. The tutorial will go into details of how MNP is implemented at the operational level. It will discuss in detail the routing procedures in MNP scenario. It will discuss how voice call is routed to the old number in the new operator in an MNP scenario. It will discuss hone SMS is routed in the MNP scenario.
Speakers’ biography: Asoke Talukder is the DaimlerChrysler Chair Professor at Indian Institute of Information Technology – Bangalore (iiitb). He was in the telecom and IT industry for about 25 years. He is recipient of many international awards for technology innovation and professional excellence. He is the recipient of “ICIM Professional Excellence Award”, “ICL Services Trophy”, “ICL Chief Executive Excellence Award”, “Atlas Club Excellence Award” etc. One of his ubiquitous middleware products pBiz Gateway was recipient of “IBM Solutions Excellence Award” in 2001. Another product was recipient of “Simagine” award in GSM World Congress in 2003. He setup the first X.25 network in India for DoT in 1986. He was the key engineer for Oracle Parallel Server for Hewlett-Packard HP-FX fault tolerant operating system in 1991. He Internet enabled Microsoft PowerPoint in 1993. He was the key architect for 64 bit Informix for DEC Alpha in 1994. He worked for companies like Microsoft, Oracle, Northern Telecom, Informix, Sequoia, ICL, Hewlett Packard, NEC, Fujitsu, Digital, iGate, BSIL, ICIM, to name a few. He held senior positions in different technology companies in India and abroad. In his last industry association, he was the founder-CTO of Cellnext, the pioneering wireless content and technology company in India in the technology domain of GSM, SMS, GPRS, MMS, Intelligent Networks, CDMA, and 3G. Since January 2003, he is a faculty at Indian Institute of Information Technology, Bangalore. He has authored a book on “Mobile Computing – technology, Applications, and Service Creation” to be released by McGraw-Hill shortly. His areas of interests are Mobile Computing, Security Engineering, and All IP Networks.
Tutorial 3 – T3Half day tutorial
Optical Communications Networks and Devices
by Professor Dr. Alok Kumar Das, Jadavpur University, Kolkata, IndiaAbstract: To study the characteristics of any network, handling skyrocketing amount of traffic on the internet, it is always required to understand the different types of network as well as the related components and devices for optimization of the network system with better efficiency. To accommodate this skyrocketing amount of traffic, optical network with wavelength division multiplexing (WDM) having several wavelengths per fiber as channels, is the most feasible solution. Transmission rate of a channel is currently 2.4, 10 or 40 Gbps. With the advent of WDM technology, IP (Internet Protocol) backbone carriers are now connecting core routers directly over point-to-point WDM links (IP over WDM). This layer structure with a help of MPLS (Multi Protocol Level Switching) and OXC (Optical Cross Connect) in which IP packets are directly mapped into wavelength channels. The signal without O-E-O (optical to electrical and electrical to optical) conversion reduces the deployment time and thus produces additional network robustness. It has the advantage of eliminating the intermediate layer such as ATM (Asynchronous Transfer Mode) and SONET/SDH (Synchronous Optical Network/ Synchronous Digital Hierarchy). In a larger networks having more number of nodes, more wavelengths are needed and to avoid the large number of wavelengths the wavelength-routed networks overcome these limitations through wavelength reuse, wavelength conversion, and optical switching. Now-a-day there is a need to develop efficient optical components and devices relevant to the different optical networks.
The objective of the tutorial is to provide the attendees first in understanding different basic topologies of the network and to show the better performance of the mesh one to obtain the maximum throughput and bandwidth of the network and also cost effective. The analysis for throughput and bandwidth maximization of some important mesh networks like NSFNET (USA), JGN (Japan) and BSNL (India) will be discussed. The Markov model is used to solve the optimum condition of an efficient network system where the queue of the packets can be kept in a minimum. The different conditions of server idleness and packet queue in a network for different node numbers (N) are considered and the optimum condition depending on the arrival rate Pa and the retransmission rate P will be discussed. We shall discuss the router and routing techniques and different switches and their implementations. Other than the Opto-electronic switching system, the switching can be made directly for routing without converting the optical signal to electrical signal. The different implementation methods of the switches are mechanical, MEMS, Liquid Crystals, Bubble, waveguide type TO (Thermo-optic) and EO (Electro-optic) switches, etc. These optical switches are very efficient and depending on size, capacity, speed, and cost one technology may prove superior to another, at least for specific needs. The advantages and disadvantages of electrical, Opto-electronics and optical switches and in-depth understanding for their requirements considering the limitation of the bandwidth between the links in different network systems will be discussed. The other waveguide type devices like modulators, attenuators, add/drop filters, couplers, power dividers and combiners, etc., required for optical networks, will be discussed considering their low losses and compact sizes. Now-a-day polymeric optical waveguide device! s have attracted great interest in the field of integrated optics as it offers many advantages compared with other available waveguide materials (silicon and LiNbO3) because of their potential for easy, low-temperature and low-cost processing, highly tunable material index with large Thermo-optic coefficient. It also offers EO property with large Electro-optic coefficient simply by mixing the dye in a polymer. It possesses high nonlinear optical property for high speed and wide-band signal processing. Considering this aspects we are preparing both TO and EO polymeric materials starting from the basic chemicals, which will be discussed in the tutorial. Lastly, we shall discuss the networking of 21st century. To fulfill this we are lucky for the invention of low loss optical fiber for the use of communication network and further it continues to drive photonics technology in developing the relevant components and flexible optical networking. Already commercial few Tb/s! (Per fiber) transmission system has been announced and can be expected that in the next several years, we can achieve 50 Tb/s transmission bandwidth.
Speakers’ biography: Professor Dr. Alok Kumar Das
graduated in 1965 from Jadavpur University, Kolkata, India in Electronics and Telecommunication Engineering. He completed his Master and PhD degrees in Engineering from the same University in 1967 and 1972, respectively. He is a senior Professor in the Department. Dr. Das is a senior member of IEEE and is the winner of the prestigious IEEE 2000 Millennium award. His research interest is in the field of Optical fiber communication systems including integrated optics and optical networks. He has directed several sponsored projects in the area of optical fiber components, optical networks, and optical instruments. Dr. Das is directly involved in the development of optical wave-guiding devices like interconnects, modulators, switches, and attenuators. He was Visiting Professor in the City University of Hong Kong almost every year from 1999 to 2004 for the development of optical devices, to be required in optical network applications. Currently he is involved to develop both Thermo-optic and Electro-optic Polymeric materials for the fabrication of optical devices. Dr. Das has given several invited talks in US, Canada, Japan, Germany, China, and others and editor of several journals including IEEE. Dr. Das published about 140 papers in refereed journals and conference proceedings including IEEE, Applied Optics, Optics Lett. Electronics Lett.
Tutorial 4 – T4Half day tutorial
INTERNET - A Secure Foundation for Mobile Payments
by Dr. Nick-Naser Manochehri, Dr. Nazar Elfadil and Professor, Dr. Guy OmidyarAbstract: Internet, Mobile and Wireless Protocols, Architectures, Flow and Congestion Control, Mobile and Electronic-commerce, Smart Security, Biometric and Smart Card Authentication, Network Security and Mobile Payment System.
Mobile phone users are already familiar with using their phones to pay for products such as games, ring tones and other digital content. Mobile phones and mobile devices are now being used to pay for products at a physical point of sale (POS). The ever increasing availability of new, more capable mobile devices and new payment technologies that make such transactions possible offers benefits to both consumers and businesses. The success of mobile payments is contingent on the same factors that have fuelled the growth of physical world non-cash payments, namely: security, interoperability, privacy, global acceptance, and ease of use. Furthermore, E-commerce facilitates number of organizations to reduce supplier cost and increase profits. In the late 1990s, it was predicted that Mobile technology would revolutionize E-business so that in the near future businesses will move from E -to M-commerce. It was predicted that by 2005 billions of dollar would be spent on wireless devices. The question is M-commerce happening? Will M-commerce live up to the expectations? M-commerce represents considerable new opportunities for all enterprises. M-commerce has its own specific characteristics separate from E-commerce. Paying for goods and services from mobile phones or personal digital assistance (PDA) equipped with wireless LAN (WLAN) connection involve many partners and operators. There are technological, organizational, cultural, technical, and business issues to consider. Migration from E-commerce to M-Commerce and an overview and fundamental issues in Mobile Payment System (MPS) will be presented. In addition, factors that effect the introduction of a successful universal mobile payment system that increases the interest and general distribution of m-commerce will be discussed. In addition, integration of fixed and portable wireless access into IP networks presents a cost effective and efficient way to provide seamless end-to-end connectivity and ubiquitous access in a market where demands on Mobile Internet have grown rapidly and predicted to generate billions of dollars in revenue in upcoming years. The deployment of broadband IP-based with broadband wireless access networks are becoming increasingly important. Fixed core IP networks are constructed with the move to IP over Dense Wave Division Multiplexing. Global solutions could be reached with integration of satellites with terrestrial providers. Together, they can expand businesses in Mobile- and Electronic-Commerce and trading for many years to come. This tutorial also addresses the procedure to proactively secure communication channels between non-trusted entities and how to construct a secure foundation for Mobile payments.
Speakers’ biography: Dr. Nick-Naser Manochehri
received his Ph.D. in Applied Technology and Training, from the University of North Texas. He was teaching and designing coursework in the area of Information Technology and Telecommunications at the center for learning at the SBC Communications Inc. in USA till September 2003. He is currently an assistant professor in the department of Information Systems at the Sultan Qaboos University in Oman. His research area of interest includes: Data Communications and Networking, Mobile Commerce, Network Security, Web-based learning, and transfer of training.Dr. Nazar Elfadil
received his Ph.D. in Electrical/ Computer engineering, from University Technology, Malaysia. He has been an assistant professorial lecturer at Nottingham University till August 2003. He is currently an assistant professor in the Department of Electrical and Computer Engineering at Sultan Qaboos University in Oman. His research area of interest includes: network security, knowledge engineering, and Artificial intelligence.Professor, Dr. Guy Omidyar
received the D.Sc. in Electrical Engineering from George Washington University. He has been an associate professorial Lecturer at George Washington University and a professor invite at University de Versailles-Saint-Quentin France. He was professor in the Department of Electrical and Computer Engineering at Sultan Qaboos University in Oman and National University of Singapore. He lectures extensively on theory and practice of mobile and wireless communications and optical networks. He was a senior program manager in advance networking operation at Computer Sciences Corporation, Mitre corporation, riverside research institute, Magnovox Government data system. He was a science advisor for US. Internal Revenue Service and conducted research at the Research Institute of Illinois Institute of Technology. He worked at Bell Communications Research and contributed to the standardization and was a technology advisor at Telecom Egypt. He was chairman of IEEE communications society of communication system integration and modeling committee. He is the steering committee chair of Mobile and Wireless Communication Network (MWCN) www.ctr.kcl.ac.uk/mwcn2005/default.asp and International Conference on Optical Communications and Networks (ICOCN) www.icocn2005.org and Wireless and Optical Communications Network (WOCN) www.wocn2005.org and International Conference on Internet (ICI) www.ici2005.org conferences. He was director of international affairs office at Institute for Communications Research in Singapore and he is Chairman of IFIP TC6 WG 6.8 and Omidyar Institute.
Last updated: 26 Feb 06