Wireless Wide Area Networks (WANs) |
 |
 |
|
Public Training Course - Taught Live OnLine
 Training Description
This course provides a thorough overview of existing and emerging wide area wireless technologies. The course has sufficient technical detail to allow the attendee to gain an understanding of why the technological methods were chosen for development and to best select a technology or service provider for his/her wireless business requirements. This course is recommended for technicians and engineering staff supporting wireless applications, and managers who interact with wireless personnel.
Prerequisites
Although no prerequisite courses are required, experience or previous course work in networking and wireless basics is beneficial. Recommended courses: Datacom Essentials, Wireless Essentials
Outline
The wireless business case
- Wired vs. wireless
- Application performance requirements
- User density challenges
- Costs of deployment
- Private implementations vs. service providers
- Licensing issues
- Non-licensed operation
- Spectrum regulation
- Regulatory agencies
Radio Communication
- Analog vs. digital performance comparisons
- Modulation methods
- Signal encoding
- Spectral efficiency
- EM overview
- Bandwidth constraints
- Health and safety issues
Power, Loss and Antennas
- Power/loss metrics
- Determining loss and gain
- Sources of loss and gain
- Signal quality
- Free space loss
- Antenna primer
- Impedance matching
- Antenna arrays
- Smart antennas
- Link performance
- Link budgets
Air Link challenges
- Reflection, absorption, refraction and diffraction
- Signal fading
- Multipath fading
- Motion fading
- Fade margin
- Interference factors
- Co-channel and adjacent-channel interference
- Error control in wireless links
- Interleaving and interpolation
- FEC
Wi-Fi and Local Wireless
- Narrow band vs. spread spectrum
- Shadowing
- Achieving high data rates
- FCS and error correction
- Upper layer interaction
- 802.11 framing
- Frame fragmenting
- Compatibility issues
- Minimizing interference
- DSSS
- OFDM
- 802.11n
- Wi-Fi devices
- CSMA/CA and RTS/CTS
- Using PCF
- WLAN infrastructure
- Role of the AP
- Power conservation
- Bluetooth architecture and implementation
- RFID applications
Cellular and Regional Wireless
- FDD vs. TDD
- Frequency reuse
- Cellular planning
- Cellular fixed network
- Cellular access and operation
- Roaming
- Handoff
- Cellular generations
- GSM
- CDMA
- System capacities
- HSCSD
- GPRS, EDGE
- Private radio networks
- SMR
- Trunked radio
- Wireless local loops
- MMDS
- LMDS
High Speed WWAN Technologies
- Evolution of WWAN technologies
- Technology limitations
- Wi-MAX operation and applications
- Speed vs. range
- WiMAX deployments
- Mobile Wi-MAX
- MBWA defined
- Interoperability issues
- Peak data rates
- QoS issues
- HiperMAN/BRAN
- HSUPA/HSDPA
- EVDO
- Availability and deployments
Satellite and Global Wireless Communications
- Satcom overview
- Coverage
- Application and challenges
- Sitcom evolution
- Simplex vs. duplex communications
- GEO
- VSATs- applications and bandwidth challenges
- MEO, HEO applications
- LEO overview
|
Copyright © 2012 Dashcourses International. 1-866-945-4844