<<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
Òmonth-date-year.doc.Ó You can also access all of its attachments, if
any.
Dr. Fouad M. EL-Harazin, President <alaqsau@hotmail.com>
Dr. Eng. Mohammad A. Mikki <mmikki@iugaza.edu.ps>
Eng. Mohammed T. Dawood <meemd@hotmail.com>
Michael Coulton <mcoulton@cs.kent.edu>
Mr. Chomora Mikeka <mikeka_chomora@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/2xt5mc
(Revised on August 9, 2007)
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, doesnÕt this contradict with your statement in Item 1 of ÒBenefits of
Adopting a WiMAX Fixed SolutionÓ? -- it says ÒThe standard has been designed to
scale up to hundreds or even thousands of users within one RF channel.Ó
Dear Mike:
(6) Many thanks for your msg (ATTACHMENT II).
Dear
Prof. Mikki:
The attempt described in the web site mentioned in MikeÕs 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. MikkiÕs 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:
ÒMikrotic
vs. WiMaxÓ
<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 MikeÕs 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 NASAÕs 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 ComputerÕs WiFi Airport Base-station
when it appeared several years ago — see Case 1 of the following diagram;
My wifeÕs 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 neighborsÕ
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 neighborsÕ 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 usersÕ 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)
ÒCitywide Wi-Fi struggles to reach usersÓ
See ATTACHMENT II of my
list distribution mentioned in Item (7) above.
(b) ÒA Better Wi-Fi Not Quite Up To Its PromisesÓ
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@hotmail.com>
Date: Fri, 27 Jul 2007 13:10:01
+0000
To: <utsumi@columbia.edu>
Cc: <elharazin@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: ãInstallation
of WiMAX: Worldwide Interoperability for Microwave Access, Broadband Network
For GUS/Palestine/Gaza Strip and West Bank, Financial Proposal Case Study to be
replaced accordinglyä. 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@hotmail.com <mailto:alaqsau@hotmail.com>
ATTACHMENT II
> From:
"mcoulton@cs.kent.edu" <mcoulton@cs.kent.edu>
> Date: Tue, 31 Jul 2007 17:12:55 -0400 (EDT)
> To: <alaqsau46@yahoo.com>
> Cc: <utsumi@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@yahoo.com>
Date: Fri, 13 Jul 2007 08:12:20
-0700 (PDT)
To: <utsumi@columbia.edu>
Cc: <mmikki@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@yahoo.com>
Date: Fri, 13 Jul 2007 09:36:18
-0700 (PDT)
To: <utsumi@columbia.edu>
Subject: Pico del çguila- El
Baœl 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@yahoo.com>
To: muyepaa@medcol.mw
Cc: Marco Zennaro <mzennaro@ictp.it>; chomora@gmail.com
Sent: Saturday, July 14, 2007 1:03:21 AM
Subject: Pico del çguila- El Baœl 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@hotmail.com
globalharazin@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@iugaza.edu.ps
public@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@hotmail.com
Michael Coulton <mcoulton@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@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@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
*
*******************************************************************************