Course 590: 4G Wireless Fundamentals

This course will provide a comprehensive coverage of the technologies behind the 4G mobile system including Multicarrier-CDMA (MC-CDMA), Orthogonal frequency-division multiplexing (OFDM), Orthogonal frequency-division multiplexing (OFDM), Multiple-Input Multiple-Output (MIMO), Software Defined Radio (SDR), Ultra Wide Band (UWB) and more. It analyses and discusses all relevant 4G technologies in one coherent framework. You will be guided from 3G to 4G where you will learn about 4G qualities and characteristics, and realize how 4G can support us with higher data transferring rates.

Upon completion of this course, the participant will:

• Have a comprehensive overview of 4G infrastructure and functionality needed for providing 4G services to mobile end-users.
• Understand the concept of 4G and have a wider view of the 4G mobile telecommunications system.
• Understand the different radio access technologies as well as the platform for building services.
• The Wireless World Beyond Third generation
• The Evolution of 3G Networks towards 4G Mobile Communications
• 4G Business Model and Potential Services and Applications
• Concepts behind OFDM (Orthogonal Frequency Division Multiplexing) and OFDMA
• Overview of 4G Radio and Access Networks
• Ultra Wideband (UWB) Technology in 4G
• 4G as an Enabler of Seamless Data Service Delivery
• Learn more about 802.16e/Mobile WiMAX and WiBRO

The Cautious Road Beyond 3G

• Wireless Systems Beyond IMT-2000
• Fourth-generation mobile communications (4G mobile)
• The converged broadband wireless system (wireless mobile and wireless access)
• Spectrum efficiency
• Dynamic bandwidth allocation
• Secured wireless application
• Improved quality of service

• The Way to the 4G
• 4G Characteristics
• 4G Definitions
• 4G Multiple Access
• Orthogonal Frequency Division Multiplexing and MC CDMA.
• Ultra Wide Band Radio
• Network building blocks
• Quality of Service
• Packet switched/IP Multimedia

• A critical view on Roadmaps for the Future of Wireless Access
• Standardization bodies
• Licenses
• Implementations

• Adaptive Modulation and Coding
• Speed, capacity and cost per bit
• Global mobility
• Service portability
• Scalable mobile networks
• Seamless switching
• Quality of Service (QoS) requirements
• Scheduling and call admission control techniques
• Ad hoc networks and multi-hop networks

• New Services
• What is a 4G mobile service?
• Expected 4G services
• Media-Rich Apps
• Who provides services?
• 4G business model and potential services and applications
• The wireless world beyond third generation
• The evolution of 3G networks towards 4G mobile communications
• 4G Networks Overlay
• Location Services (LCS) in 4G Networks.
• Channel Modeling and Measurements for 4G
• Adaptive 4G Networks

• Multi-access interface, timing and recovery
• Higher frequency reuse
• Issues in the interface with the ad hoc networks
• Voice over multi-hop networks
• Security
• Variable QoS services
• Changing channel conditions
• Seamless roaming
• Seamless transfer of services

• Problems in a cellular system
• Near-far problems
• Interference
• Multipath fading
• Shadowing
• Specific solutions in 4G
• Cell Planning
• Fast power control
• Radio planning aspects of 4G
• Handover
• Bit rate

• Different access techniques
• Global roaming
• The terminals
• Software radio approach
• What is multicarrier modulation (MCM)?
• OFDMA
• WOFDM
• MC-CDMA
• Ultra Wideband technology in 4G
• Fair packet loss sharing (FPLS) packet scheduling for 4G wireless
• MAC protocol time-division and code-division multiplexing
• 4G processing
• Receiver section
• Transmitter section
• Ultrawideband (UWB) parameters and characteristics
• Interference results

• High peak-to-average power levels
• orthogonality in severe multi-path
• Efficient FFT based receiver structures
• Efficient TX and RX diversity
• Adaptive antenna arrays without joint equalization
• Support for adaptive modulation by subcarrier
• Frequency diversity
• Robust against narrow-band interference
• Efficient for simulcasting
• Variable/dynamic bandwidth
• Why is used for highest speed applications
• Supports dynamic packet access

• Access
• Handoff
• Location coordination
• Resource coordination to add new users
• Support for multicasting
• Support for quality of service
• Wireless security and authentication
• Network failure and backup
• QoS
• Operation Support Systems
• Pricing and billing

• How to access several different mobile and wireless networks
• Three possible architectures
• Overlay network
• Common access network
• Multimode devices

• Resource Allocation
• Multiple information bearing data rates (> 2 Mbps)
• QoS guarantee (bit error rate, delay, power/spectral efficiency)
• Cell coverage environment (indoor, outdoor, local and wide area)
• Flexibility and efficiency in channel assignment and scheduling
• Complexity and power consumption of a transceiver

• Convergence
• Infrastructure link to the last mile
• Flow control at access points/network edges
• Packet routing
• Native-mode ATM, TCP/IP, mobile IP
• End-to-end QoS control: minimum bandwidth guarantee
• Integration with various application-specific networks: interworking

• Management, Congestion control,and QoS Guarantees :
• Mobility Management
• Mobility Management includes location registration, paging and handover.
• Congestion Control
• Avoidance or prevention of the congestion
• Detection and recovery after congestion

• Summary of higher layer issues in 4G
• Fast Fourier transform (FFT) techniques
• Peak-to-average ratio (PAVR) of the signal
• Some new challenges in the lower layer
• Physical and MAC Layer specifications
• Multi-carrier modulation

• open multiple air interfaces
• The real-time services
• Guaranteed
• Better-than-best effort
• Predictive
• Controlled delay
• Controlled load
• Guaranteed and Controlled Load services
• Mixed QOS requirements for 4G
• Web data (real-time/non real-time, microflows)
• Continuous media (mostly real-time)
• TCP data (bursty best effort)
• IP Micro-mobility access networks
• Mobile ad hoc networks
• Sensor and deeply embedded networks
• Quality of Service Challenges
• Varying bit rate
• Channel characteristics
• Bandwidth allocation
• Fault tolerance
• Handoff support among heterogeneous wireless networks

• Security issues beyond 3G
• Encryption techniques
• Authentication and authorization functions

• The Evolution of TDMA to W-CDMA & 4G Wireless Systems
• What is MOTO-Media?
• Implementation Issues