Final Examination

1
Presentation 16

• Final Examination
• Final Reports
• Review of Spread Spectrum
• Hoon Park Korea and world markets
• Ed and team Review of WiMax Costs
• Mohammad Asseri Saudi Arabia Arab League
• Mark Hughes Eritrea

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Final Examination

• The Exam will be on Monday March 19
• From 730 to 920
• Open-book bring calculators
• Problems will cover full course, any questions
  included on homework and midterm may be included.
• Ill try to keep calculations more reasonable

3
Final Reports

• Also due on March 19
• 15 to 20 pages
• Part I review of hardware (5 to 10 pages)
• Part II country report, include the issues
  covered in lecture
• A network plan to connect the rural region with
  low-cost WIMAX. VSAT where needed.Use local labor
  where possible
• Public access through roving cell phones and
  internet cafes or kiosks.
• Local Banking (micro) to keep capital in the
  community and bring in remissions and development
  loans
• Commerce based on internet trade with WTO
• Local ownership or regulation with cooperative
  marketing.( Suggestion of Dr. Khan that core be
  financed by local government for its services
  with public access added.
• Local radio broadcasting.

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Discuss Health and Education Services

• Educational computer supplement to Classrooms.
• Adult education in literacy and local economic
  issues.
• Local Teacher Education
• Online textbook distribution and local printing.
• Local addition of culture to courses with
  enrichment of cultural values.
• Distribution of local supplements Wikipedia
• Training health workers and linking with field
  hospitals

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Early Spread Spectrum
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Direct Sequence Spread Spectrum
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Demodulating Direct Sequence Spread Spectrum
8
FDMA vs CDMA
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Adjacent Channel Protection in FDMA, TDMA CDMA
10
CDMA Must SoftHand off because of very low
protection
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Comparison of Cellular System Capacities
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Recent article on Spread Spectrum efficiency
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Student Presentations

• Hoon Park Korea and world markets
• Ed and team Review of WiMax Costs
• Mohammad Asseri Saudi Arabia Arab League
• Mark Hughes Eritrea

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N. Korea

• Telecommunication plan for

Hoon Park
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North Korea

• Population
• 23 million (vs. 49 million in ROK)
• 60 of population in Pyongyang (48 in Seoul)
• Education
• Regular classes, extra class after school,
  literacy 99. Russian English as 2nd language
• Interest to the surrounding nations
• Strategic geographical bridge
• Natural resources
• coal, lead, tungsten, zinc, graphite,
• magnetite, iron ore, copper, gold,
• pyrites, salt, fluorspar, hydropower

East Sea
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North Korea

• Exports
• minerals, metallurgical products, manufactures
  (including armaments), textiles, fishery products
• China 35, South Korea 24, Thailand 9, Japan 9
  (2005)
• Imports
• petroleum, coking coal, machinery
• and equipment, textiles, grain
• China 42, South Korea 28,
• Russia 9, Thailand 8 (2005)

East Sea
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North Korea

• Photos

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North Korea

• Shortage on food
• 25 of total death from starvation
• Rushed to make more rice patties on mountains
• 1995 flood caused decrease in crop by 0.6 million
  tons
• Short of fertilizer agricultural chemicals
• 0.5 million tons crop used to be imported from
  China for very low price, but things changed

East Sea
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North Korea

• Tourism
• Mt. Kumgang tour
• (http//www.hyundai-asan.com)
• Experience the unified Korea
• Dynamic place for inter-Korean dialogue and
  exchange
• Kuryongyeon District

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North Korea

• Tourism
• Manmulsang District

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North Korea

• Tourism
• Samilpo Estuary District and Haegeumgang District

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North Korea

• Kaesong Industrial Park

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North Korea

• Golden triangle in Korean Peninsular

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North Korea

• Inter-Korean bridgehead to connect Asian with
  European Continent

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North Korea

• Strategic location in logistics of Northeast Asia

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North Korea

• Investment incentives in these areas

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Wi-Max

• Increased distance and speed (vs. wi-fi)
• For wide areas, but not only for replacing wired
  networks, but also for places that does not have
  broadband connectivity

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Wibro

• Wibro wave 2 - demonstrated Feb 2007
• built for mobility (60 km/s)
• MIMO(multi-in multi-out), Smart antenna
• 2.3 GHz, 40 Mbps upstream, 12 Mbps downstream
• Mobile telecommunication company based

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Wibro

• WiBro to the world

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Wibro

• Currently, does not support voice services
• WiBro VoIP
• HSDPA WiBro
• High-Speed Downlink Packet Access, 384 kbps (3G)

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North Korea

• Development plan based on
• ½ population compared to S. Korea
• 60 population concentrated in Pyongyang
• In preparation for reunified Korea, must build a
  compatible infrastructure
• Same interests as South Korean youngsters in
  online gaming - Internet cafés
• Fiber optic cable connected with
• China, but limited access
• Low number of landline phone
• ratio (12 of S. Korea)

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North Korea

• Investment on communication infrastructure
• Wireless communication - 1.5 billion
• 1998, S. Korea invested total of 3 billion in
  mobile communication
• From population ratio, N. Korea will need to
  spend 1.5 billion
• Wired communication infrastructure 7.5 billion
• Neet 7.1 million landlines total, currently 1.1
  million
• Approximately 75 of S.Korea landlines supplied

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WiMax Network Projections

• E Katz
• D Labunsky

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Wireless Network

• Central hub supports multiple users using
  multiple applications, mostly Internet and VoIP
  telephony

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Assumptions

• Assume that the major differences between WiFi
  and WiMax are
• Software
• Power levels allowed (ERP)
• This implies that most of the hardware required
  for a WiMax network will eventually be priced
  comparably to that required by a WiFi network
  today, with the exception of antennae and some
  physical infrastructure

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More assumptions

• We will limit our analysis to the last mile
  network, i.e. we assume local availability of
• Power
• A high place to put the antenna
• Some high bandwidth internet access (i.e. fiber
  optic, satellite ground station, WiMax Backhaul,
  etc.)
• Customers wanting internet service will need
  computers. We do not require high performance,
  however, and could easily make do with obsolete
  systems, donated by industrialized nations

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Access Point

• Assuming WiMax CPE will be priced comparably to
  WiFi equipment available today
• Wireless router/access point
• Linksys WRTP54G-ER Wireless-G 54Mbps Broadband
  Router with Earthlink VoIP Service - 39.99
• Linksys WRT54GL Wireless-G Linux Router - 59.99
• Linksys WRTP54G Wireless-G Vonage VoIP Router -
  59.99
• Wireless Access Point
• Linksys WAP54G Wireless-G Access Point -
  79.99
• Netgear WG602 54Mbps Wireless Access Point -
  79.99
• D-Link DWL-2100AP 108Mbps Wireless Access Point
  w/ SNMP AES - Price 99.99

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Local Transceiver Antennae

• Assumed to be at about 16 dB Gain
• Assumed to run in the 2.4-2.5 GHz range
• Good transmission, relatively low attenuation
• In the US , there is an amateur band at 900 MHz
  2.4 GHz

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Andrews Corporation2.4-2.5GHz 17dBi Grid Ant

• 17 dBi (mid)N Male
• Die cast grid antenna is manufactured with
  magnesium alloy, stainless steel and aluminum.
  Weighs 33 less than aluminum antennas with no
  rust.
• Max Wind 140 MPH
• List106.00
• Gold68.90

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More Antennae
 
 

• 13 dBi (mid)
• N Female Flat panel 60 degree sector antenna.
  Lightweight and rugged. Standard antenna mounts.
• List595.00
• Gold422.45  317.63
• 14.0 dBi (mid)
• N Female Lightweight and rugged Spread
  Spectrum/ISM band parabolic antenna. Mount
  provides fine adjustment of azimuth and
  elevation. Radome is included
• List450.00
• Gold297.00

41
Customer Premise Equipment- PCI Cards

• Notebook Mobile Adapters
• Netgear WN511T RangeMax Next Wireless N PC-Card
  Notebook Adapter - Price 99.99
• Linksys WPC54G 54Mbps Wireless-G PC Notebook
  Adapter - Price 49.99
• Buffalo CB-G54HP PC-Card AirStation High Power
  Wireless Notebook Adapter - Price 49.99
• Wireless PCI Card Adapters
• Linksys WMP54GS Wireless-G PCI Card with
  SpeedBooster - Price 59.99
• D-Link DWL-G510 54Mbps Wireless-G PCI Card -
  19.99
• Netgear WG311 54Mbps Wireless-G PCI Adapter for
  Desktop Computers - Price 39.99

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Customer Premise Equipment- VoIP Phones

• Direct-to-LAN phones
• Hitachi IP-5000 - Hitachi-Cable Wireless
  IPC-5000 WiFi SIP VoIP Wireless phone 299.95
• Phones With PC Base Stations
• Grandstream GXP-2000 - 78.95
• Grandstream Budgetone GS-101 Black SIP IP Phone
  37.99 
• KeySpan VP-24A Cordless VoIP Phone (Skype) 66.99
  

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VoIP for Existing Cell phonesOne Example is
TruPhone

• TruPhone
• Software provider
• TruPhone Software makes VoIP calls from any LAN
• Requires a phone compatible with TruPhone
  Software
• Nokia's E-series and N-series phones
• Calling landlines in other countries from their
  mobile (from US)
• UK 3.2c/min
• China 3.2c
• Mexico City 3.6c
• Japan 5.5c
• Calling international mobiles(from US)
• India 18.4c/min
• UK mobiles 23.1c
• China mobiles 3.3c
• Japan mobiles 24.0c

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A sample system- A WiMax point serves N
computer/phone stations

• Linksys WRT54GL Wireless-G Linux Router (
  59.99)
• Andrews Grid Antenna (106.00)
• D-Link DWL-G510 54Mbps Wireless-G PCI Card -
  (N19.99)
• Grandstream Budgetone GS-101 Black SIP IP Phone
  (N37.99)
• Donated PC (0) 
• Total 165.99 N57.98
• Let N 10 Stations, Total cost 745.79

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Capital AsmaraArea  117,600 km² Population -
4,401,000 Religions Sunni Islam and Oriental
Orthodox Christianity
ERITREA
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(No Transcript)
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Capital Asmara
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Assab Eritrea
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Rural Eritrea
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OGDCL to Set up Office in Eritrea to Cooperate in
Hydrocarbon Exploration Jadoon

• Islamabad April 06, 2006.
• OGDCL will setup an office in Eritrea shortly to
  cooperate in hydrocarbon exploration and help
  develop oil and gas sector. This was told by the
  Federal Minister for Petroleum and Natural
  Resources Mr. Amanullah Khan Jadoon while talking
  to the Ambassador of State of Eritrea Mr. Abdu M.
  Heggi who called on him here today and exchanged
  views on possibilities of bilateral cooperation
  in the oil, gas and mineral sectors.
• During the meeting, the Minister said that there
  existed a lot of scope for Pak-Eritrea
  interaction in the oil, gas and mineral sectors
  for the mutual advantage. He said that Pakistan
  can cooperate with Eritrea in providing training
  and know-how to their petroleum engineers and
  geo-scientists in oil and gas institutions of
  Pakistan and help formulate the mineral policy to
  attract investment and boost mineral exploration
  activities.

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Eritrean delegation in China on working visit

• Asmara, 3 September 2005 - Dr. Woldai Futur,
  Minister of National Development, who is on a
  working visit in the PRC heading a government
  delegation, held talks in Beijing with the
  country's Vice Minister of Trade, as well as the
  President of Exim Bank on the implementation of
  the previously concluded bilateral accords in the
  spheres of telecommunications, cement and others.
• The Eritrean delegation is making the visit with
  the purpose of implementing the economic
  agreements reached between Eritrea and the PRC
  during the visit of President Isaias Afwerki
  early this year. The delegation is also scheduled
  to hold talks with different other Chinese
  government officials. Moreover, the Eritrean
  delegation is due to visit the Republic of Korea,
  in the course of which it will hold talks with
  the South Korean Minister of Finance, the
  President of the Central Bank and the head of
  international cooperation.

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Eritrea President Isaias And Emir of Qatar Hold
More Talks On Bilateral Relations March 7, 2007

• In the meeting, the two leaders held in-depth
  assessment on development of bilateral relation
  and exchanged views on further strengthening
  Eritrean -Qatari relations.
• The President again expressed his appreciation to
  the initiative which Sheik Hamed Bin Khalifa
  Al-Thani had taken to promote understanding and
  cooperation between Eritrea and Sudan for mutual
  benefit.
• It is to be recalled that in their meeting in
  Doha on March 6, Presidents Isaias Afwerki and
  Omar Hassan Al-Beshir of Sudan agreed to work
  jointly for the development of the areas along
  the common border.