UCLA Extension

Wireless Planning and Design

This course benefits anyone involved in point to point wireless transmission planning, design or maintenance.

Complete Details

It specifically addresses how a well-designed microwave radio network can achieve the same stringent performance requirements as fibre optics and explains why wireless continues to be the technology of choice in the access network for public service utilities, network service providers, government or military telecoms networks and cellular backhaul, including 4G. Despite the phenomenal growth of wireless, the system design methods are often out-dated, with the design rules adapted from the old analogue systems without understanding the impact on deployment costs or performance degradation.

With the increased restrictions on physical infrastructure such as towers, due to environmental concerns, radio links need to be made to work in non-ideal situations and so practical, real-world guidance is provided to make a risk, cost assessment.

This course helps participants to:

  • Get up to date on the latest standards and design methodologies that can significantly improve system performance with dramatic reductions in infrastructure costs
  • Understand what carrier grade packet based wireless is, how to achieve it, and how to apply the latest Metro Ethernet Forum (MEF) standards
  • Perform detailed link design in both lower frequency bands, where atmospheric fading is the key concern, as well as high frequency links up to E-band (70/80GHz) where rain fading predominates
  • Have detailed understanding of propagation issues linked to practical field based fading problems, based on the real world examples and personal research performed by the lecturer
  • Dispel the many myths that dog the industry due to lack of understanding on some of the fundamentals of radio transmission
  • Assess the risks and practicalities of alternative technologies, including unlicensed wireless, so that the appropriate technology is deployed for the appropriate application
  • Learn how to make real world judgements on a holistic design that involves not only wireless link design but includes civil engineering constraints on roads, towers and shelters, as well as environmental and regulatory issues

Coordinator and Lecturer

Trevor Manning, founder of TMC Global, a training and consultancy company, and advisory board member for Vertel, a world leading wireless carrier. Vertel have recently won a number of awards, and been declared as a world first by the Metro Ethernet Forum (MEF) in achieving carrier grade performance over a wireless transmission access network. Prior to that he was the global COO for a software company, specialising in wireless optimisation. He also held the position of technical director for a US headquartered wireless manufacturer, and in addition to that was Chief Engineer at a power utility where he ran the national wireless division, responsible for design, as well as operations and maintenance. He was the specialist wireless design engineer in a $ 100 million wireless network expansion project, which he was then responsible for maintaining. His experience includes the original business case justifications, the site selection and acquisition challenges, system design aspects, installation and commissioning, integration and synchronisation challenges, quality monitoring and finally maintenance and trouble shooting. Using the insights from his more recent career in C-level senior management, he approaches the engineering issues from the perspective of minimising CAPEX and OPEX while maximising system performance. His pragmatic approach to the subject helps unravel the mysteries of the many confusing standards as well as simplify the complexities of wireless design with its dependence on weather conditions, to equip you to know when and how to deploy wireless equipment in modern real-world networks.

Trevor Manning is the author of best-selling Artech House book Microwave Radio Transmission Design Guide (second edition).

Daily Schedule

Day 1

Introduction to Microwave

  • History of wireless telecoms and wireless standards
  • Fundamentals of microwave
  • The electromagnetic and RF spectrum
  • RF transmission safety issues
  • Transmission Options (cable, fibre, satellite, wireless (PP, PMP, unlicenced))
  • Benefits of microwave especially for cellular backhaul

Link Planning

  • Link design considerations from UHF to mm Wave
  • Path planning and path profiles
  • Active and Passive repeaters
  • Issues around site acquisition and site planning
  • Frequency bands and their effect on link plans
  • Establishing line of sight in practise
  • Site and path surveys

Microwave propagation and fading effects

  • The affect of the atmosphere on radio transmission
  • Huygens principle and Fresnel Zones
  • Diffraction loss and clearance over obstacles
  • Research data on refraction effects in a network and its impact on radio system design
  • Radio refractivity and refractive index gradient
  • Understanding what k-factor really means
  • Understanding the effects of reflection and how to minimise their impact

Fading Effects

  • Diffraction fading and setting antenna heights using new rules
  • Multipath fading
  • Flat and selective fading and their countermeasures
  • Blackout fading and ducting
  • Handling reflections especially over water
  • Rain fading

Day 2

Equipment Characteristics

  • Transmitter and receiver characteristics
  • System components of a radio transceiver
  • Digital Modulation schemes and bandwidth efficiency
  • Multiplexing standards including PDH, SDH and synchronisation issues
  • How voice is carried on a digital radio link
  • Important Ethernet considerations in a modern radio
  • Radio characteristics to handle the backhaul bandwidth crunch
  • Key radio features (adaptive modulation and equalisation, FEC, XPIC, ATPC)
  • Protection schemes such as hot standby, frequency and space diversity

Frequency and Channel planning

  • Causes of interference
  • Spectrum allocation and channel plans
  • Standards bodies and frequency regulation
  • Channel re-use and interference calculations
  • Understanding nodal and overshoot interference
  • High-low site planning
  • How to improve your network performance through understanding frequency planning issues

Link Design and reliability Standards

  • The latest reliability standards and radio system design implications
  • Understanding the difference between availability and performance
  • The impact of the standards on different frequency bands and link lengths
  • Path, equipment and network reliability issues
  • Designing the overall radio system to achieve the required network availability (eg 99.999%?)

For more information contact the Short Course Program Office:
shortcourses@uclaextension.edu (310) 825-3344 | fax (310) 206-2815

image_print