[gu-new] (08/04/07) (1) Installation of WiMAX for GUS/Palestine/Gaza Strip and West Bank; Financial Proposal, Case Study (2) Reminders about the use of WiFi, WiMAX and optical fiber line

Takeshi Utsumi, Ph.D. utsumi at columbia.edu
Sat Aug 4 12:08:51 EDT 2007 

<<August 4, 2007>>
Archived distributions can be retrieved at;
<http://preview.tinyurl.com/35zedj>
This archive includes a html version of this list distribution and its
MS/WORD version with its filename as “month-date-year.doc.”  You can also
access all of its attachments, if any.

Dr. Fouad M. EL-Harazin, President <alaqsau at hotmail.com>

Dr. Eng. Mohammad A. Mikki <mmikki at iugaza.edu.ps>

Eng. Mohammed T. Dawood <meemd at hotmail.com>

Michael Coulton <mcoulton at cs.kent.edu>

Mr. Chomora Mikeka <mikeka_chomora at yahoo.co.jp>


Dear Fouad:

(1) Many thanks for your msg (ATTACHMENT I) with an excellent proposal to
deploy region-wise coverage of WiMAX wireless broadband Internet in
Palestine/Gaza Strip;

> Dr. Eng. Mohammad A. Mikki, et al, "Installation of WiMAX: Worldwide
> Interoperability for Microwave Access Broadband Network For GUS/Palestine/Gaza
> Strip and West Bank, Financial Proposal: Case Study"
> http://preview.tinyurl.com/23gfoa

Upon your request, I uploaded it to Section II-5 of;

> GUS/Palestine/Gaza Strip and West Bank
> http://preview.tinyurl.com/25kl5n

Dear Prof. Mikki and Mr. Dawood:

(2) My wholehearted congratulations to your outstanding effort for this
proposal.

(3) Referring to Item 3 of Table 8, is this to connect each WiMAX base
station with 54 Mbps of what? -- wireless or optical fiber?  I would prefer
the latter in mesh connection.

(4) The NOTE just below Table 8 mentioned of the connection with West Bank
and outside world.

Do you consider the former as your second step?  If so, can you provide its
rough estimate?

Do you have any idea how to connect your GazaNet to the outside world?  How
to sustain it — of course, financially?

> Dear Fouad:
> 
> You may need to make a rough market survey and a business proposal.
> Government fund usually lasts a couple of years, but you have to sustain it
> afterward.
> 
> With them and endorsement letters from various ministers of education, health
> and telecom, etc., you may start considering to apply for the Japan Social
> Development Fund of the World Bank and others.

(5) You say that each cell in Figure 9 can serve 120 users with download at
512 Kbps.

I think this is rather few and slow — see my experience in Item (9) below.

Also, doesn’t this contradict with your statement in Item 1 of “Benefits of
Adopting a WiMAX Fixed Solution”? -- it says “The standard has been designed
to scale up to hundreds or even thousands of users within one RF channel.”

Dear Mike:

(6) Many thanks for your msg (ATTACHMENT II).

> Dear Prof. Mikki:
> 
> The attempt described in the web site mentioned in Mike’s msg may be of some
> interest to you for your connection with the West Bank colleagues.

Dear Chomora:

(7) Many thanks for your msgs (ATTACHMENT III and IV) in response to my
following previous list distribution;

> (07/12/07) WiMAX
> http://preview.tinyurl.com/35ts9s

Prof. Mikki’s proposal mentioned in the above Item (1) may be of some
interest to you and to Anthony MUYEPA in Malawi.

In turn, I am taking the liberty of distributing here your reply to Muyepa
in a pdf format:

> “Mikrotic vs. WiMax”
> <http://preview.tinyurl.com/34allb>.

(8) Your info about the distance of WiFi transmission reaches 280 Km, seems
better than the one mentioned in the web site in Mike’s msg in ATTACHMENT II
at 125 miles (200 Km).

> IEEE 802.11: Long Reach Link
> <http://preview.tinyurl.com/34ljnw>
> 
>> Dear E-Colleagues:
>> 
>> This article is rather technical, but it shows how difficult endeavor for
>> telecom people set up their gears in remote/rural areas in Venezuela — which
>> users often do not realize as any of engineering projects.

Dear E-Colleagues:

(9) Since I engaged in a test of wireless data telecom via the NASA’s
Advanced Technology Satellite (ATS-1) between the Univ. of
Electro-communications in Tokyo and the University of Hawaii almost 35 years
ago, I had been an avid advocator of wireless data telecom.

Therefore, I immediately purchased Apple Computer’s WiFi Airport
Base-station when it appeared several years ago — see Case 1 of the
following diagram; 
My wife’s iMac and my PowerBook G4 laptop were connected to Internet via
wireless through the Airport Base-station and a cable modem to Internet at
about 6 to 9 Mbps downlink and 0.5 Mbps uplinking -- See Case 1 in the
diagram.

Since about a year ago, we started to notice that there were several
neighbors’ names in the Internet access pane, and getting very slow access
speed, e.g., 300 bps downlink and 50 bps uplinking, etc.   Field service man
of Time-Warners (our Internet Service Provider [ISP]) checked our system
more than a half dozen times, but in vain.

I then connected my laptop directly to the modem as disconnecting the WiFi
base-station — see the orange line in Case 1 in the diagram.  Lo and
Behold!!  I got the original speed.

I then changed our configuration as Case 2, but I still get the same trouble
as before, especially in the morning and evening.  I then again tried to
directly connect my laptop to the cable modem as shown with the orange line
in the diagram, which worked with the original speed.  I then had to
conclude that many neighbors’ wireless, cell phone and microwave uses
interrupted to cause congestions to block our signal going through into the
outside Internet.

I then completely removed the use of WiFi wireless base-station as shown in
Case 3 in the diagram with no downgraded speeds at all time of 24/7.

In a sense, the success of the WiFi defeated its use in our case -- you can
imagine so many people using it in an apartment building in New York City!!

> Dear Prof. Mikki:
> 
> My concerned comments (about the number of users) to your proposal mentioned
> above was based on my real experience.

This means that the closing the last-mile with the WiFi wireless is not
necessary panacea, -- we still need the use of hardwire approach,
particularly use of optical fiber.

However, alas!!  A recent Japanese newspaper reported that cicadas are
causing the disruption of optical fiber Internet high speed line — very
surprisingly, mother cicadas mistakenly considers that optical fiber line in
the last mile to users’ home as dead tree branch (which they usually plant
their eggs), as piecing hard plastic cover of the optical fiver line to lay
their eggs, which hence breaks its Internet data telecommunication.

These incidences tell us that we have to be very careful to apply new
technologies depending on the local situations.

(10) You may then be interested in reading the following news articles,
also;

> (a) “Citywide Wi-Fi struggles to reach users”
> See ATTACHMENT II of my list distribution mentioned in Item (7) above.
> 
> (b) “A Better Wi-Fi Not Quite Up To Its Promises”
> David Pogue, The New York Times, April 12, 2007
> http://preview.tinyurl.com/2kzrle

Pls enjoy reading them.

Best, Tak


ATTACHMENT I 

> From: "Dr. Fouad EL-Harazin" <alaqsau at hotmail.com>
> Date: Fri, 27 Jul 2007 13:10:01 +0000
> To: <utsumi at columbia.edu>
> Cc: <elharazin at gmail.com>
> Subject: Re: [gu-new] (07/13/07) Dr. Fouad EL-Harazin, "Global University
> System: Palestine/Gaza Strip and West Bank; and Prof. Dr. Takeshi Utsumi"
> 

> Dear Prof. Utsumi
> 
> Warm feeling
>  
>          A croup of GUS/Pal/GS&WB designed a financial budget about broadband
> Internet- WiMAX infrastructure as follows: „Installation of WiMAX: Worldwide
> Interoperability for Microwave Access, Broadband Network For
> GUS/Palestine/Gaza Strip and West Bank, Financial Proposal Case Study to be
> replaced accordingly‰. then uploaded, please
>  
>  
> Best Regards
>  
> ---Fouad
> ======================
>  
> Dr. Fouad M. EL-Harazin, President
> Gaza International Foundation for Peace on Earth (GIFPE)
> Director of International Programs of The National Research Center (NRC)
> Palestinian Authority-Gaza Strip
> P.O. Box: 5340 
> Tel/Fax: 00 970 8 282 4157 (office, some countries use 972)
> Mobile: 00 970 599 33 44 13 (some countries use 972)
> Email: alaqsau at hotmail.com <mailto:alaqsau at hotmail.com>


ATTACHMENT II 

> From: "mcoulton at cs.kent.edu" <mcoulton at cs.kent.edu>
> Date: Tue, 31 Jul 2007 17:12:55 -0400 (EDT)
> To: <alaqsau46 at yahoo.com>
> Cc: <utsumi at columbia.edu>
> Subject: wireless internet in gaza
> 
> Good afternoon:
> 
> I have an israeli friend who is involved whith the spreading of democracy
> through communications and using technology to facilitate the process. He
> wrote about the CyberCafes in gaza and how they were targets of militants
> that considered the internet as "Distracting from prayer" and blew them
> up.
> 
> i mentioned how at a recent conference wireless internet links were made
> at a distance of 125 miles with unaltered equipment
> http://www.wifi-shootout.com/ and felt that that would be a good way of
> keeping the militants from stifling communication.
> 
> When i saw a document saying you were involved in this i felt that i
> wanted to support your goals. i have technical skills as a programmer but
> sadly no money to donate to the cause. My friend has written for several
> large news sites and online editions of newspapers and magazines and would
> like to talk to you and i can get you in contact.
> 
> thank you for your time
> Michael Coulton


ATTACHMENT III 

> From: Chomora Mikeka <chomoramikeka at yahoo.com>
> Date: Fri, 13 Jul 2007 08:12:20 -0700 (PDT)
> To: <utsumi at columbia.edu>
> Cc: <mmikki at iugaza.edu.ps>
> Subject: Re: [gu-new] (07/12/07) WiMAX
> 
> Dear Prof Takeshi UTSUMI,
>  
> Many thanks for the valuable paper by Prof Mikki on WiMax and QoS. Infact i
> got an inquiry from Malawi in the person of Anthony MUYEPA, a MAREN ICT
> Specialist who is also a member of the gu-new mailing list and works closely
> with Prof L. Kamwanja. He under MAREN (Malawi Research and Education Network)
> are planning for a wireless link spanning a larger sector of the Southern
> Region of Malawi and wonder whether WiMax could be considered for the long
> range wireless backbone against the pre-proposed 802.11g WiFi using Mikrotic
> gear. My response to them, is herewith attached, PDF.
>  
> Thanks also for introducing me to Prof Mikki, i will feel free to contact him
> whenever necessary.
>  
> With kind regards,
> http://www.arailab.dnj.ynu.ac.jp/~mikeka/index.html


ATTACHMENT IV 
> 
> From: Chomora Mikeka <chomoramikeka at yahoo.com>
> Date: Fri, 13 Jul 2007 09:36:18 -0700 (PDT)
> To: <utsumi at columbia.edu>
> Subject: Pico del Águila- El Baúl 279Km WiFi Link
> 

> Dear Prof Utsumi,
>  
> The sky may be the limit for WiFi, read below and refer to the attachment, an
> optional possibility for Malawi MAREN wireless backbone.
>  
> http://www.arailab.dnj.ynu.ac.jp/~mikeka/index.html
> 
> 
>> ----- Forwarded Message ----
>> From: Chomora Mikeka <chomoramikeka at yahoo.com>
>> To: muyepaa at medcol.mw
>> Cc: Marco Zennaro <mzennaro at ictp.it>; chomora at gmail.com
>> Sent: Saturday, July 14, 2007 1:03:21 AM
>> Subject: Pico del Águila- El Baúl 279Km WiFi Link
>> 
>> Dear Anthony
>>  
>> Courtesy of ICTP, Italy and Universidad Merida, Venezuela, find attached an
>> exploration for the range limits of a WiFi radio link. It is an exciting
>> report, please read and let me know what could prevent such to happen in
>> MALAWI.
>>  
>> A 279Km link was realized without amplifier clads as was the case with the
>> 310Km Swedish Space Agency. I analysed the Project description and i think
>> you can tailor something for MAREN, by the way the 279Km reported is close to
>> 5times your designed LOS hops and is 1.1 raven`s flight distance  between
>> Blantyre and Mangochi. How is your Mangochi Medical Research Unit/campus
>> performing interms of silmultaneous enrolment? How many internet users do you
>> budget for Mangochi Node?
>>  
>> I hope you get some insights incase you choose WiFi for the spinal
>> cord/{backbone.}
>>  
>> http://www.arailab.dnj.ynu.ac.jp/~mikeka/index.html


List of Distribution

Dr. Fouad M. EL-Harazin, President
Gaza International Foundation for Peace on Earth (GIFPE)
Director of International Program of the National Research center (NRC)
Gaza Strip, Palestinian Authority
P. O. Box: 5340
Tel/Fax: +970 8 282 4157 (office, some countries use 972)
Mobile: +970 599 334413 (some countries use 972)
alaqsau at hotmail.com
globalharazin at yahoo.com
http://tinyurl.com/25kl5n

Dr. Eng. Mohammad A. Mikki
Associate Professor
Electrical and Computer Engineering (ECE) Department
The Islamic University of Gaza (IUG)
Rimal, Gaza Strip, Palestine
P. O. Box 108
Tel: +970-8-286-0700 X 2876
Cel: + 970 599 72 71 87
Fax: +970-8-286-0800
mmikki at iugaza.edu.ps
public at mail.iugaza.edu
http://www.iugaza.edu/homes/mmikki

Eng. Mohammed T. Dawood
Electrical and Computer Engineering (ECE) Department
Faculty of Engineering
Islamic University of Gaza
P. O. Box 108
Gaza, Palestine Authority
Tel: +970-8-2823311
Cel: +972-599-492694
Fax: +970-8-2823310
meemd at hotmail.com

Michael Coulton <mcoulton at cs.kent.edu>

Mr. Chomora Mikeka
Laboratory DESK: E301
Prof Arai Laboratory
Electrical and Computer Engineering
Division of Phyisics
Graduate School of Engineering
YOKOHAMA NATIONAL UNIVERSITY
79-5, Tokiwadai Hodogaya-ku
Yokohama 240-8501 Japan.
Fax: +81-45-338-1157
mikeka_chomora at yahoo.co.jp
http://www.arailab.dnj.ynu.ac.jp/English/index.html
http://www.arailab.dnj.ynu.ac.jp/~mikeka/index.html

****************************************************************************
***
* Takeshi Utsumi, Ph.D., P.E., Chairman, GLOSAS/USA
*
* (GLObal Systems Analysis and Simulation Association in the U.S.A.)
*
* Laureate of Lord Perry Award for Excellence in Distance Education
*
* Founder and V.P. for Technology and Coordination of
*
*   Global University System (GUS)
*
* 43-23 Colden Street, Flushing, NY 11355-5913, U.S.A.
*
* Tel: 718-939-0928; Email: utsumi at columbia.edu
*
* 
http://www.itu.int/wsis/goldenbook/search/display.asp?Quest=8032562&lang=en
*
* http://www.friends-partners.org/GLOSAS/
*
* Tax Exempt ID: 11-2999676
*
****************************************************************************
***


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