Mobile And Wireless Technologies

Course Code:  BIT501

Course Title: Mobile and Wireless Technologies (4 Credits)




Course Contents


Unit-1-Introduction to mobile communication and computing, Why mobile communications, Use-cases, applications, Definition of terms: Challenges, history, Wireless Transmission, Wireless networks in comparison to fixed networks, Simple reference model (TCP/IP model), Influence of mobile communication to the layer model.


Unit-2-Wireless Transmission–I : Frequencies for communication- Frequencies for mobile communication, Frequencies and regulations, Signals (physical representation of data, function of time and location), Fourier representation of periodic signals, Different representations of signals (w.r.t. freq and amp), Antennas (isotropic radiator, simple dipoles, directed and sectorized) , MIMO, Signal propagation ranges, Signal propagation – shadowing, reflection, refraction, scattering, diffraction), Multipath propagation, Effects of mobility, Multiplexing (FDM, TDM, SDM, CDMA), OFDM.


Unit-3-Wireless Transmission –II: Modulation (Digital, analog), spread spectrum technology – DSS, FHSS, Cell structure – frequency planning, cell breathing.


Unit-4-Wireless Telecommunication Systems: GSM: Overview, Performance characteristics of GSM (wrt. analog sys.), GSM: Mobile Services, Architecture of the GSM system, system architecture, GSM - TDMA/FDMA , GSM hierarchy of frames, GSM protocol layers for signaling, Mobile Originated Call, Mobile Originated Call, 4 types of handover, Handover decision, Handover procedure, Data services in GSM, GPRS quality of service, GPRS architecture and interfaces, GPRS protocol architecture,


Unit-5-3G – The Universal Mobile Telecommunication System (UMTS): -UMTS Network Architecture –Release 99, UMTS Interfaces, UMTS Network Evolution, UMTS Release 5, UMTS FDD and TDD, UMTS Channels, Logical Channels, UMTS downlink transport and physical channels, UMTS uplink transport and physical channels, UMTS Time Slots, UMTS Network Protocol, Architecture, Mobility Management for UMTS Network


Unit-6-(Wireless) Medium Access Control: Motivation for a specialized MAC (Hidden and exposed terminals, Near and far terminals), SDMA, FDMA, TDMA, CDMA. Adf


Unit-7-Wireless LANs : Mobile Communication Technology according to IEEE (examples), Characteristics of wireless LANs (Advantages and disadvantages), Comparison: infrared vs. radio transmission, Comparison: infrastructure vs. ad-hoc networks, 802.11 - Architecture of an infrastructure network, 802.11 - Architecture of an ad-hoc network, IEEE standard 802.11, 802.11 - Layers and functions, WLAN: IEEE 802.11b, WLAN: IEEE 802.11a, Some more IEEE standards for mobile communications,


Unit-8-Mobile Network Layer: Mobile IP (Goals, assumptions, entities and terminology, IP packet delivery, agent advertisement and discovery, registration, tunneling and encapsulation, optimizations), Dynamic Host Configuration Protocol (DHCP).


Unit-9-Mobile Transport Layer I: Traditional TCP, Indirect TCP, Snooping TCP, Mobile TCP.


Unit-10-Mobile Transport Layer II: Fast retransmit/fast recovery, Transmission /time-out freezing, Selective retransmission, Transaction oriented TCP.


Unit-11-Data processing and mobility: Effect of mobility on the management of data: Data Categorization; Location Dependent Data Distribution-Effect of Connectivity on Transaction Processing. Transaction Management in Mobile Database Systems: Mobile Database System; Transaction Execution in MDS; Mobile Transaction Model;  Execution Model based on ACID Transaction Framework; Execution Model with Reporting Transactions; Two-Level Consistency Model; Pro-Motion: Proactive management of Mobile; Pre-write Transaction Execution Model; Pre-write Execution in Mobile Database Systems; Mobile Transaction Model- HiCoMo: (High Commit Mobile Transaction Model, Moflex Transaction Model, Kangaroo Mobile Transaction Model, MDSTPM Transaction Execution Model.)


Unit-12-Mobile Ad hoc Networks (MANETs): Overview, Properties of a MANET, spectrum of MANET applications, routing and various routing algorithms, security in MANETs.


Unit-13-4G Technology: The basics of 4G, What is 4G, 4G capable phone, ITU, Three Flavours of 4G: WiMax, LTE, Difference between LTE and WiMax, HSPA+.


Unit-14-HTML5 on Mobile Devices: HTML5 for mobile websites and mobile applications on Mobile operating systems, Tools: Offline Web Storage, GeoLocation API, Canvas Drawing, CSS3.