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WIMAX & Mobile WiMAX

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  • Overview of WiMAX and the IEEE 802.16 Standard
    • Regulatory environment and worldwide spectrum allocations
    • Licensed versus unlicensed bands of operation
    • The IEEE 802 series of standards
    • Evolution of IEEE 802.16 to 802.16e
    • WiMAX network architecture and protocol stacks
  • WiMAX versus WiFi:  A Comparative Look
    • 802.11 standards evolution
    • WiFi overview and air interface features
    • Features common to WiFi and WiMAX
    • WiFi versus WiMAX:  Benefits and challenges
  • If WiMAX Is the Solution, What Is the Problem?
    • Mobile communications channel’s biggest challenge: fading and delay spread
    • How is fading dealt with in the TDMA systems?
      • The GSM paradigm
    • How is fading dealt with in the CDMA systems?
      • How does spreading/despreading affect fading?
      • Spreading/despreading in cdmaOne (IS-95)
      • Spreading/despreading in cdma2000
      • Spreading/despreading in UMTS
    • A different approach to solving the problem
      • Orthogonal Frequency Division Multiplexing (OFDM)
      • OFDM as a multiple access technique:  Orthogonal Frequency Division Multiple Access (OFDMA)
      • WiMAX and OFDMA
      • OFDM in conjunction with CDMA:  Best of both worlds
    • Second biggest challenge: Propagation and associated attenuation
      • Fundamentals of link budget analysis and propagation modeling
      • Impact on network planning and design
      • Capacity considerations vis-à-vis network planning/design
  • WiMAX/IEEE 802.16 Physical Layer
    • OFDMA frame structure
    • OFDMA subcarrier allocations
    • OFDMA ranging and handover
    • Transmit diversity, space-time coding, and multiple-input-multiple-output (MIMO) operation
    • Channel coding
      • Convolutional codes
      • Turbo codes
      • Low Density Parity Check (LDPC) codes
    • Adaptive modulation schemes and link adaptation
    • Hybrid ARQ (HARQ) and Incremental Redundancy (IR)
    • Power control mechanisms
  • WiMAX/IEEE 802.16 MAC Layer
    • MAC structure and MAC PDU formats
    • MAC scheduling
    • Network entry and initialization
    • Idle mode processes
      • Cell selection
      • Paging structures
      • Location area updates
    • QoS service classes
    • Sleep mode processes
    • MAC layer handover procedures
    • MAC multicast and broadcast services
  • WiMAX/IEEE 802.16e:  An Overview of the Mobile WiMAX System
  • WiMAX/IEEE 802.16e:  The Physical Layer
    • Reviewing the OFDMA basics
    • OFDMA symbol structure and sub-channelization
    • Scalable OFDMA
    • TDD frame structure
  • WiMAX/IEEE 802.16e:  The MAC Layer
    • QoS support
    • MAC scheduler
    • Mobility management
      • Power management
      • Handoff
    • Security
  • Advanced Features of Mobile WiMAX
    • Smart antenna technologies
    • Fractional frequency reuse
    • Multicast and broadcast service
  • Mobile WiMAX System Performance Evaluation
  • Mobile WiMAX System Parameters
  • Mobile WiMAX Link Budget
  • WiMAX End-to-End Network Architecture
  • Business Issues and Considerations
    • Mobile WiMAX applications
    • Mobile WiMAX spectrum considerations
    • Roadmap for WiMAX products
  • Mobile WiMAX versus 3G:  A Comparative Look
  • Evolution to 3G Systems and Beyond
    • Overview of 1xEVDO
    • Overview of HSDPA/HSUPA
    • 3G LTE, 4G
  • Comparing Mobile WiMAX, 1xEVDO, and HSPA
    • Common features
      • Adaptive modulation and coding
      • Hybrid ARQ
      • Fast scheduling
      • Bandwidth efficient handoff
    • Advantages of Mobile WiMAX
      • Tolerance to multipath and self-interference
      • Scalable channel bandwidth
      • Orthogonal uplink multiple access
      • Spectral efficient TDD
      • Frequency selective scheduling
      • Fractional frequency reuse
      • QoS
      • Advanced antenna technology
  • Wrap-up:  Course Recap, Q/A, and Evaluations

 

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