What is WiMAX

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• What is WiMAX?
• The IEEE 802.16 standard
• WiMAX Performances
• WiMAX and Wi-fi
• WiMaX and 3G
• WiMAX Mobility
• Current regulation
• Challenges of WiMAX

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What is WiMAX

• Worldwide Interoperability for Microwave Access
• IEEE 802.16 standards-based wireless technology
  poised to be the next best thing!
• Aims to provides high-throughput wireless
  broadband connections over long distances
• IEEE 802.16e, mobility for subscribers,
  finalizing standards racing to prototypes
• IEEE 802.16-2000, fixed subscriber and provider
  backhaul standards racing to production

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What is WiMAX
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What is WiMAX
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The IEEE 802.16 standard
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WiMAX PERFORMANCE
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WiMAX PERFORMANCE
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WiMAX and Wi-fi

• What is Wi-fi,
• Advantages of Wi-fi,
• Comparison to WiMAX and Wi-fi

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What is Wifi?

• This is modern wireless technology of computers
  connection to the network or connecting them to
  the internet. Just with the help of this
  technology the internet gets mobile and gives the
  user the opportunity to be mobile both in the
  limit of a room and worldwide. Technology
  provides simultaneous work in the network of
  several dozens of the active users speed of
  information transmission for the final subscriber
  can reach 108Mbit/sec. Wi-Fi access is available
  for note-book and personal pocket computer,
  web-camera or wireless IP-telephone owners
  equipped with the proper module meeting the IEEE
  802.11 standard.

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Advantages of Wi-fi

• Absence of Wires
• The network is based on wireless Wi-Fi
  technology which does not require using the
  telephone or any other lines of connection based
  on wires. Data transmission is carried out
  through air on a very high frequency which
  doesnt influence a man and does not create
  hindrances of electronic equipment.
• Possibility of some mobility.
• Since you are not tied up to wires, you can
  easily change location of your computer not
  worrying about connection withdrawal (in the
  cover area of access point).
• High-speed access to internet
• A high-speed access to internet is offered for
  network subscribers, speed of channel is
  108Mbit/sec. Meanwhile, there is no necessity for
  ringing up or connection defining, etc. You are
  always on-line and to be connected to internet it
  is just enough to open your browser.

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Comparison to WiMAX and Wi-fi

• IEEE Standards
• Wi-Fi is based on IEEE 802.11 standard where as
  WiMAX is based on IEEE 802.16. However both are
  IEEE standards.
• Range
• Wi-Fi typically provides local network access
  for around a few hundred feet with speeds of up
  to 54 Mbps, a single WiMAX antenna is expected to
  have a range of up to 40 miles with speeds of 70
  Mbps or more. As such, WiMAX can bring the
  underlying Internet connection needed to service
  localWi-Fi networks.
• Scalability
• Wi-Fi is intended for LAN applications, users
  scale from one to tens with one subscriber for
  each CPE device. Fixed channel sizes (20MHz).
• WiMAX is designed to efficiently support from
  one to hundreds of Consumer premises equipments
  (CPE)s, with unlimited subscribers behind each
  CPE. Flexible channel sizes from 1.5MHz to 20MHz.

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Comparison to WiMAX and Wi-fi

• Bit rate
• Wi-Fi works at 2.7 bps/Hz and can peak up to 54
  Mbps in 20 MHz channel.
• WiMAX works at 5 bps/Hz and can peak up to 100
  Mbps in a 20 MHz channel.
• Quality of Service
• Wi-Fi does not guarantee any QoS but WiMax will
  provide your several level of QoS.
• As such, WiMAX can bring the underlying Internet
  connection needed to service local Wi-Fi
  networks. Wi-Fi does not provide ubiquitous
  broadband while WiMAX does.

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WiMAX and 3G

• What is 3G,Features of 3G,Comparison to WiMAX

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What is 3G?

• A radio communications technology that will
  create a "bit pipe" for providing mobile access
  to internet-based services. It will enhance and
  extend mobility in many areas of our lives.

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Features of 3G

• Phone calls/fax
• Global roaming
• Send/receive large email messages
• High-speed Web Navigation/mapsVideoconferencing
• TV streaming
• Electronic agenda meeting reminder.

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Comparison to WiMAX

• WiMAX (Worldwide interoperability for Microwave
  Access) is  a broadband wireless access
  technology that can deliver data speeds much
  higher than 3G, and at chepaer rates. Till
  recently, 3G has been the only way to deliver
  broadband connectivity to mobile phones.

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Comparison to WiMAX

• A typical mobile WiMAX network can deliver up to
  15 Mbps within a 3-km cell radius, compared to 3G
  speeds of 2-2.4 Mbps (for CDMA 2000 and WCDMA).
  Or in other words, if you want to download a
  full-length movie onto your mobile, it will take
  64 minutes on a 3G connection, but less than nine
  minutes with WiMAX.

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Comparison to WiMAX

• 3G could drive a variety of applications on your
  handheld key among these will be video telephony
  and video conferenceing, mobile TV, interactive
  gaming, streaming video, music downloads and
  mobile TV. But WiMAX  is not just about data.
  Now, there is a greater push offering voice also
  on a WiMAX platform. Many, including Nortel, are
  conducting trials of mobile WiMAX.

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Comparison to WiMAX

• 3G has the potential to disrupt the Indian
  telecom business model as WiMAX spectrum licences
  could be far cheaper than 3G or even the GSM or
  CDMA liceces that have been awarded so far.
  Globally, this has been the case. In Singapore,
  for instance, the highest amount paid for
  broadband wireless spectrum was 2.27 million,
  compared to 100 million for 3G. According to
  telecom regulator Trai's recommendations, the
  minimum bid amount for a pan India WiMAX presence
  is Rs.142 crore. Compare this with the Rs.1,050
  crore base price for similar deployment of 3G
  services almost eight times higher.

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Comparison to Wimax

• WiMAX was designed primarily for data and is
  limited in its ability to carry voice. On the
  other hand, 3G is good for voice, but cannot
  match the data speeds that WiMAX supports.

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Wimax Mobility

• Broadband Mobility,Portable and Full Mobility
  Scenario,Features and Advantages

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Broadband Mobility

• Broadband Wireless Mobility is a solution for
  service providers and carriers, that is
  interoperable with their existing networks and
  that can augment coverage and service to
  end-users.
• Because it is an IP-based solution, it can be
  integrated with both wireline and 3G mobile
  networks.

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Portable and Full Mobility Scenario

• Broadband Wireless Mobility mainly aims to allow
  service providers to reach nomadic and mobile
  customers equipped with portable devices and
  allow outdoor roaming across geographical areas
  of coverage.

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Portable and Full Mobility Scenario
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Portable and Full Mobility Scenario

• Broadband Wireless Mobility uses the Mobile WiMAX
  standard that mainly enables the delivery of
  high-bandwidth services with an array of
  multimedia features.
• Users can then enjoy a wireless DSL service that
  is accessible in moving vehicles up to 75 mph
  with a data rate of 5Mbps at the range of 1-3
  miles.

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Features and Advantages

• Portable high speed data service
• Wider range of coverage (1-3 miles radius)
• Supports mobility at 75mph
• High throughput (30Mbps at 10 Mhz bandwidth)
• Potential for roaming in larger scale
• Flexible
• Cost effective

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Current Regulations
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Outline

• Allocation
• Quality of Service
• Wimax and 3G
• Next Generation Networks
• Country Examples

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Allocation
Key Wimax Frequencies
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Quality of Service

• Network Quality of Service is determined by both
  Physical and Market characteristics.
• Port Blocking
• Traffic Structuring

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Wimax and 3G

• Although Wimax technology will be capable of
  providing VOIP services, 3G technologies will
  remain much more efficient in the use of bandwith
  for voice transport. Wimax providers have the
  ability and are allowed to offer services at high
  levels of mobility.

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Next Generation Networks
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Country Examples

• Australia
• Austria
• Belgium
• Canada
• Denmark
• Finland
• France
• Germany
• Ireland

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Country Examples

• Japan
• Korea
• Luxembourg
• Netherlands
• New Zealand
• Spain
• Switzerland
• Sweden
• United Kingdom

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Country Examples

• United States

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Challanges of WiMAX
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Outline

• Business Challenges for WiMAX
• Technical Challenges for Broadband Wireless

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Business Challenges for WiMAX

• Differences in global spectrum availability
• Competition from 3G
• Device Development
• The rising bar of traditional broadband

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Technical Challenges for Broadband Wireless
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References

• Wimax forumIEEE 802.16e,
• IEEE Standard for Local and metropolitan
  areanetworks,
• Part 16 Mobile Broadband Wireless Access Systems
• Internet source
• www.tutorialspoint.com
• www.wimax.com
• www.wi-fi.uz
• Source Understanding the fundamentals of WiMAX
  Understanding Broadband
• Wireless Networking 2006, Prentice Hall(Web
• Addresshttp//i.i.com.com/cnwk.1d/i/tr/downloads/
  home/0132225522_chapter_1.pdf)
• www.wimax.com/education
• http//www2.ing.puc.cl/iee3552/wimax.pdf

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Questions

• What is the biggest challenge for mobile wimax in
  both business and technical area?
• Which one do you prefer? Wimax, 3G or Wi-fi? Why?
• What is the challanges for VoIP?