Home Area Network Group

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Home Area Network Group
Reginald Johnson Shawn Canady Chris
Cataldo Damien Cobbs Jason Judy Vaughn
Harper Neil Camp Paul Grosch
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The number of multi-PC, and multi-device
(printers, scanners, etc.) households has
reached a critical mass, driving consumer demand
for home networking.
The main objective of the Home Area Network
is to provide a low cost, maintenance free,
network OS and rapidly bring to market a range
of interoperable home networking solutions.
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Primary Objectives

• Compatibility with existing high speed internet
  access technologies.
• Ensure mass deployment of a consumer friendly,
  low cost, no maintenance solution for in-home
  networking.

• Develop certification standards to ensure
  interoperability among products from the broadest
  possible range of technology and equipment
  vendors.
• Make it fast 1Mbs in home.

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N o N e w W i r e s
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More ..

• Provide legal shared internet access through a
  contract with leading ISP providers.
• No interruption of existing phone service.

• Complete a bare bones network operating system
  that allows simple maintenance free device
  sharing and internet access.

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The Time Is Now...
Drop in First Time PC Buyers, Multiple PC
Households Growing. (
Ziff-Davis Market Intelligence)
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Milestones
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Deliverables
1. Preliminary network design.
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Deliverables
Network OS Specifications
Trimmings

• Allow up to 3 computers running windows 95/98/NT
  to share files and peripherals within the HAN.

• Allow up to 3 computers to simultaneously access
  the internet
• through one connection. (Client/Server
  relationship)

• Run as a background process completely
  transparent to the users.

• Will require no administration, and will start
  automatically when
• the computer is started up.

• Will give the users the ability to allow and deny
  access to shared
• data and peripherals on the HAN.

• No email service.

• No web server utility.

• No remote administration of clients or
  peripherals.

• No user account administration

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Design????
Must tolerate completely random and unspecified
wiring topologies. The telephone wiring structure
within each home is unknown and even changes on
a day to day basis.
Must be designed to take into consideration the
unknown but typically large degree of signal
attenuation which occurs within the random tree
network topology. This effect is compounded by
lack of termination (for example, a phone jack
with nothing plugged in).
Must be able to tolerate the dynamically
changing transmission line characteristics. The
simple act of a user picking up a telephone can
dramatically change the data transmission
characteristics of the phone wiring.
Must be able to coexist with telephone service
and comply with FCC Part 68. Phoneline network
solutions are constrained to use signals with
low energy levels, which further complicates
things.
And, finally, must maximize data throughput given
the above constraints and limitations.
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Design!!!
One of the most common methods for simultaneously
operating multiple services over a single pair
of wires is Frequency Division Multiplexing
(FDM). With FDM, each communications service is
assigned a frequency spectrum that is different
from all others.
Standard voice occupies the range from 20 Hz to
3.4 kHz DSL services, like Universal ADSL, occupy
the frequency range from 25 kHz to 1.1 MHz
. Phoneline networking can operate in a frequency
range above 2 MHz.
Tut 1 Mbit/s technology occupies the passband
frequency range between 5.5MHz and 9.5 MHz.
Passband filters bounce frequencies below 5.5MHz
very rapidly, so there is no interference with
other DSL services or traditional phones.
This means a consumer can simultaneously be using
the phone or sending a fax, using the home
network, and accessing the Internet.
CSMA/CD (Carrier Sense Multiple Access/Collision
Detect) The foundation of Ethernet. In simple
terms, it's a 1 Mbit/s Ethernet over phoneline.
Within each network interface, the receiver
circuit adapts to varying noise levels that
might appear on the line. Both transmit and
receive circuits continually monitor line
conditions and adjust their settings accordingly.
To achieve high-speed data throughput, one must
encode as much data as possible (instead of
single pulse-bits) in each signal pulse. To
accomplish this, multiple data bits are encoded
into each pulse.
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Development Plan
Still Dont Believe Me??

• Follow the specifications of the HomePNA to
  develop a working NOS.

• Negotiate a package agreement for network homes
  with ISP.

• Trim features that add complexity to NOS, design
  for home user.

• Purchase HAN interface cards for NOS design.

• Contract OS to capable software development
  firm(Multiport Inc.).

• Tests, trials, debug

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Organizational Structure
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SOFTWARE

• Contact Experts in NOS development
• Research NOS development
• Develop NOS (Multiport Inc. etc.)
• Write specifications for HAN NOS
• Write contract for NOS development

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Evaluation Methods

• Specify criteria of a successful product
• Specify details on evaluation method
• Specify suitable test environment
• IEEE Institute of Electrical and Electronics
  Engineers
• ITU International Telecommunications Union

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CS 250/CS 300U contracts

• Write specifications for CS 250 simple interface.
• CS300U survey for internet usage statistics and
  buyers.

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Initial Budget

• I. Capital Investment
• A. Hardware
• PC HP Vectra VL7 Pentium II 300Mhz
  1,025 x 4 4,100
• 4.3GB, 32 MB, Win95, 32x cd-rom
• WebServer Gateway 7200 ALR
  2,399
• Monitor CTX VL700 17 1280x1024
  214 x 4 856
• NIC Generic PCI 10/100 card 49 x
  4 196
• 8 Port Ethernet Hub 56
• Cables Belkin CAT 5 250 ft. 24awg plenum
  100 x 4 400
• B. Software
• Win 98 full OEM version 84 x 4
  336
• Win NT full OEM version
  111 x 4 444

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Initial Budget

• C. Peripherals
• HP LaserJet 5M 1,285
• HP DeskJet 670c 136 x 3
  408
• Scanner Epson 1200 dpi 24 bit
  104
• D. Supplies
• Fax machine Brother PPF-770 plain paper
  169
• Copier HP color 110 366
• Paper HP Multipurpose (case 5000 sheets)
  30
• Initial Capital Investment total
  -----------------------------------------------11
  ,149

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Initial Budget

• II. Recurring Costs
• A. Office
• Electric variable 200-400
• HRUBS variable 50 - 100
• Phone Service variable (long distance) one
  line 25 - 100
• Internet Access Fractional T1 Leased
  400
• Lease on 1,000 sq. ft. property
  1200
• Office Furniture Lease 300
• these costs are monthly

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Initial Budget

• Network Engineer 45,000
• these costs are annual
• III. Contract Estimates
• Software Development 240,000
• Hardware Development 10,000
• total cost for Recurring Costs and Contract
  Estimates--------312,000
• Grand Total For One Year of Business--------------
  -----------345,000

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Work Assignments
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Work Assignments
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We will provide a networking solution that will
include the hardware and software needed to make
a Home Area Network capable of
In Conclusion

• High speed Internet access by multiple computers
  through a single Internet connection.
• High speed file, and peripheral sharing
  throughout the network.
• Easy installation and maintenance of the network
  operating system.
• All this without the need to install new wiring.