The document analyzes and compares 10GPON and WDM PON technologies for upgrading existing PON infrastructure to support higher bandwidth demands. It finds that while WDM PON has advantages in reach, bandwidth, and power consumption, 10GPON meets the technical requirements and is more cost effective for an area with 10,000 subscribers. A cost analysis shows the total capital expenditure for a 10GPON network would be $6.69 million compared to $8.33 million for WDM PON. Operational costs are also lower for 10GPON. Therefore, the document concludes 10GPON is the most scalable and cost effective solution for the given area.
FiberHome Technologies, the unique telecommunication system supplier that offers both optical fiber and cable as well as optical communication equipment, has over 40 years of experience in optical cable industry and more than 20 years in xPON technology R&D. Currently, FiberHome products are serving more than 20 million subscribers (including China) in Asia Pacific with its FTTH integrated solution. In Asia Pacific, FiberHome is becoming the mainstream provider of FTTH one-stop solutions – FTTH equipment, ODN products and FTTH turnkey services.
ODN construction cost accounts for more than 70% of the overall FTTH network investment. The rationality of ODN network planning and design, the reliability of the products and engineering, the efficiency of network operation and maintenance, and the capability of network evolution have become the key criteria to evaluate whether the FTTH network investment is successful or not.
With many years of experience in the telecom industry and in FTTH network construction, FiberHome is able to provide a smart, flexible, efficient and evolvable FTTH network. This helps save CAPEX and OPEX and raise customer satisfaction.
FiberHome Technologies, the unique telecommunication system supplier that offers both optical fiber and cable as well as optical communication equipment, has over 40 years of experience in optical cable industry and more than 20 years in xPON technology R&D. Currently, FiberHome products are serving more than 20 million subscribers (including China) in Asia Pacific with its FTTH integrated solution. In Asia Pacific, FiberHome is becoming the mainstream provider of FTTH one-stop solutions – FTTH equipment, ODN products and FTTH turnkey services.
ODN construction cost accounts for more than 70% of the overall FTTH network investment. The rationality of ODN network planning and design, the reliability of the products and engineering, the efficiency of network operation and maintenance, and the capability of network evolution have become the key criteria to evaluate whether the FTTH network investment is successful or not.
With many years of experience in the telecom industry and in FTTH network construction, FiberHome is able to provide a smart, flexible, efficient and evolvable FTTH network. This helps save CAPEX and OPEX and raise customer satisfaction.
New technologies options include WDM-PON, VDLS2 bonding, G.fast, and more. In addition, there are new compression techniques and noise mitigation that extend the life of existing networks.
Which approaches are practical, necessary and beneficial and what factors determine the best path to take?
Kyeong Soo Kim, Academic Weeks Videoconference Session with Pakistan COMSATS Institute of Information Technology (CIIT), Swansea University, Swansea, Wales UK, Dec. 14, 2010.
These are sample slides taken from my 4 days long "GPON-FTTx" training course. This course has over 380 slides and it is a great source of learning about various topics related to GPON & FTTx. There are tons of exercises and real-world examples provided in teaching material.
Zyxel’s Fiber Access solution provides versatile fiber connectivity for service providers according to the deployment requirements. Service providers can highly optimize and integrate various FTTx applications with the freedom to deploy services easily on GPON, GEPON, Active Fiber solutions with OLT, ONU/ONT and active fiber gateways.
The proliferation of consumer devices, HDTV and internet based services will continue to drive consumer bandwidth demand and Fiber is the only access technology capable of supporting dedicated gigabit Ethernet bandwidths.
New technologies options include WDM-PON, VDLS2 bonding, G.fast, and more. In addition, there are new compression techniques and noise mitigation that extend the life of existing networks.
Which approaches are practical, necessary and beneficial and what factors determine the best path to take?
Kyeong Soo Kim, Academic Weeks Videoconference Session with Pakistan COMSATS Institute of Information Technology (CIIT), Swansea University, Swansea, Wales UK, Dec. 14, 2010.
These are sample slides taken from my 4 days long "GPON-FTTx" training course. This course has over 380 slides and it is a great source of learning about various topics related to GPON & FTTx. There are tons of exercises and real-world examples provided in teaching material.
Zyxel’s Fiber Access solution provides versatile fiber connectivity for service providers according to the deployment requirements. Service providers can highly optimize and integrate various FTTx applications with the freedom to deploy services easily on GPON, GEPON, Active Fiber solutions with OLT, ONU/ONT and active fiber gateways.
The proliferation of consumer devices, HDTV and internet based services will continue to drive consumer bandwidth demand and Fiber is the only access technology capable of supporting dedicated gigabit Ethernet bandwidths.
Installation and Maintenance of PON Services. PON Network Overview
o FTTH Architecture, Standards, and Wavelength allocations
o PON Lifecycle
o Responsibilities
• FTTH Installation Testing
o Recommended procedure
o Potential issues during Service Activation
• Difference between aerial and burial deployments
• Cause of high loss
o Drop fiber verification
o Achieving and Validating QoE
• Pass/Fail Thresholds and Standards
• Expectations when turning up different networks
• Streamline Result Transfer
o FLOW/NO App
Significant amount of research and development has been made in the field of core network and it operates in hundreds Gigabits per second (Gbps) speed currently. But on seeing the growth in bandwidth demand in the access network which is exploding day by day, the only promising solution is to upgrade the access network. So it is essential to have an efficient access network that can operate at high functional speeds to support differentiated services like Video on Demand (VOD), High Definition TV, video conferencing, Telemedicine, Uploading and Downloading jumbo files. Apart from these access network always been sensitive to cost and geographical region of coverage it can handle. So internet service providers will have to make a tradeoff between capital expenditure (CAPEX), operational expenditure (OPEX) and geographical region of coverage.
There are mainly five types of access network APON, BPON, GPON, EPON and 10G-EPON. APON provides 622 Mbps of downstream bandwidth and 155 Mbps of upstream. GPON was the advanced version of the BPON and support at a rate of 2.444 Mbps and 1.42 Mbps in downstream and upstream data rate. EPON has symmetry of 1Gbps of upstream and downstream rates. EPON is totally data-centric based on voice, video and data. 10G-EPON is capable of providing broadband access to large number of customers in metropolitan area. Due to the advancement in the optical technology, 10G-EPON (IEEE 803.2av) provides 1Gbps and 10Gbps upstream and downstream data rate with distance more than 20 km.
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The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
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2. Introduction
• To support higher bandwidth demands by end users in the future, it is
inevitable to upgrade the existing PON infrastructure to Next
Generation PON (NGPON) technology involving 10GPON, 10G EPON
and WDM PON which support much higher bandwidth than the
existing PON technology.
• Through this presentation, we determine which Next Generation PON
technology among 10GPON and WDM PON is most suitable for
implementation in an area of 10000 SFUs through a technical and
cost based analysis of both technologies.
3. Architecture of 10GPON and WDM PON
•10GPON and WDM PON essentially have an Optical
Line Terminal (OLT) that generates the downstream
optical feed.
•Optical network terminal(ONT) is a device that
terminates any one of the distributed endpoints of an
Optical Distribution Network, implements a PON
protocol.
6. Technical Requirements and Comparative Analysis
1) Standardized Technology: The NGPON technology selected needs to
be either standardized or must be in process of it. Selecting a
standardized technology will provide important benefits such as
interoperability, quality, and confidence in adoption of it by service
providers as well as equipment vendors.
2) Splitter location and ratio: For a high-density area such as
considered in this prasentation, the splitter needs to be placed
“close to customers for it to be cost-effective because the shared
fiber represents a larger percentage of the access-line length”. Any
split ratio below 1:32 will result in requirement of more splitters
and inefficient utilization of fiber. Hence, the NGPON technology
must support a minimum split ratio of 1:32.
7. 3) Transport requirements
a. Bit rate:
Considering the bandwidth growth as mentioned in , the desired bit rate is
at least 300 Mbps downstream and 100 Mbps upstream.
b. Reach:
The area considered by us has a 20 Km radius, with OLT being 3Km away.
Based on the loss budget requirements defined previously, NGPON should have a
minimum reach of 20Km.
c. Power Saving:
In order to reduce the operational expenditure, power savings in the
network has become an important design consideration [18]. Since this network is
used for providing lifeline service such as voice, battery backup is required for
support in case of power outage. However, in this paper we are not considering the
cost of battery backup as ONT’s are placed inside the customer’s home.
8. Parameters Requirement 10 GPON WDM PON
Standard Preferred ITU G.984 No standard
Maximum
Downstream Line Rate 300 Mbps/ home
10 Gbps shared
(320 Mbps/Home)
1.25 Gbps/channel
(1.25
Maximum
Upstream Line Rate Min 100 Mbps 2.5 Gbps shared 1-10 Gbit/s per channel
PON Splits Min 1:32 1:64 1:128
Reach Min 20 Km 20 Km 120 Km
Power Saving Less consumption 18W per OLT 7W per OLT
Table 1: Technical comparison of 10GPON and WDM PON
10. 1) Capital Expenditure
The length of fiber to be deployed in the area is 121km and the cost of
trenching fiber (along with cost of fiber) is $50/m in a dense suburban area.
Total cost of fiber + fiber trenching = 121 x 1000 x 50 = $6.05 million
2) Operational Expenditure
Operational Expenses are incurred to keep the deployed network up and
running and are directly proportional to the number of customers
connected to our network.
We have considered the life of equipment as being 7 years and that of fiber
as 10 years. For our analysis, we are focused on recovering equipment and
fiber costs in 4 years and 8 years respectively with a 20% subscriber
penetration rate.
11. 3)Service provisioning
We are assuming that in the 0th year (the year when we will deploy and roll-out the
network), there will not be any customers and all the time will be spent in laying the
fiber infrastructure and equipment at the head-end or central office (OLT and modules).
From the first year onwards, CPE will be provided, splitters will be installed along with
inside and outside plant construction. As per our conversation with different PON
vendors like Calix, Adtran, Huawei and Ericsson, the cost of CPE equipment is expected
to drop 15% each year. Also, for customers, a variable take rate is considered and at the
end of 5 years, there will be 20% penetration.
Year1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8
Penetration 2% 5% 9% 14% 20% 20% 20% 20%
Actual
customers 200 500 900 1400 2000 2000 2000 2000
12. Formula for calculating 10GPON OLT cost
• Let ‘n’ be the number of customers, Pc = Price of OLT chassis,
Ps = Price of SCM, Psw = Price of SM and Pa = Price of AM
• One AM supports 32 x 4 = 128 subscribers; One OLT supports 128 x 8
= 1024 subscribers
• No. of OLT’s required for ‘n’ subscribers = n/1024 = No. of SM = No.
of SCM
• No. of AM required for ‘n’ subscribers = n/128
• 10GPON OLT Cost = n/1024(Pc + Ps + Psw) + n/128(Pa),
where n/1024 and n/128 is the next higher integral value
• For our analysis, Pc = $5000, Ps = $10000, Psw = $25000,
Pa = $15000
• Therefore, OLT cost for 10GPON for 2048 subscriber = $320000
13. 10GPON cost analysis
Capital Expenditure
• The total costs involved with the OLT for serving
2048 subscribers amount to $0.32 million
• Equipment deployment comes out to be $0.64
million and the cost associated with fiber is $6.05
million.
• Therefore, the capital expenditure for a 10GPON
network solution is $6.69 million.
14. Service Provisioning and Operational Costs
Service provisioning and Operational Costs for 10GPON
Year1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8
ONT Cost $80,000 $170,000 $265,500 $350,000 $440,000 $0 $0 $0
Service
Provisioning $125,000 $265,625 $414,844 $546,875 $687,500 $0 $0 $0
Operational
Cost $89,866 $224,665 $404,397 $629,062 $898,660 $898,660 $898,660 $898,660
16. Formula for calculating WDM PON OLT Cost
• Let ‘n’ be the number of subscribers for a WDM PON network
solution. Each PON interface can support 128 customers (32 x 4) with
a 1:32 splitting ratio. Therefore, each OLT can support 8 x 128 = 1024
subscribers. Price of OLT chassis for WDM PON = 3 x Price of
10GPON OLT Chassis
• Price of WDM PON Interface Cards = 1.75 x Price of 10GPON AM
• Price of Maintenance Control Card = 2 x Price of 10GPON SCM
• Price of Switch & Network Interface (SW/NI) = 2 x Price of 10GPON
SM
WDM PON OLT cost = n/512(3Pc + 2Ps + 2Psw) + n/64(1.75Pa)
• From this formula, WDM PON OLT cost for 2048 subscribers =
$1,140,000
17. Capital Expenditure
• Therefore, total cost for OLT deployment for
2048 subscribers is $1.14 million
• Equipment deployment amounts to $2.28 million
• The capital cost including the fiber comes out to
be $8.33 million.
18. Service Provisioning and Operational Costs
Year1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8
ONT Cost $200,000 $255,000 $290,000 $310,000 $318,000 $0 $0 $0
Service
Provisioning $312,500 $398,438 $453,125 $484,375 $496,875 $0 $0 $0
Operational
Cost
$109,272
$273,182 $491,728 $764,910 $1,092,729 $1,092,729 $1,092,729 $1,092,729
Service provisioning and Operational costs for WDM PON
20. Conclusion
• To identify the most suitable technology between 10GPON and WDM
PON in an area of 10000 SFUs. Based on the technical comparisons
done, it is shown that WDM PON technology has longer network
reach, provides higher bandwidth per ONT and has low power
consumption as compared to 10GPON.
• In spite of these advantages, 10GPON satisfies all the technical
requirements for the area under consideration.
• Moreover, cost analysis illustrates that WDM PON service would cost
consumer 1.21 times as much money as 10GPON service.
• Therefore, considering both the technical and cost analysis, we
conclude that 10GPON is the most scalable and cost effective solution
for the area under consideration.