Q4. Develop a basic network design to meet the following needs of a rural community [70%]:Home broadband can be delivered through a range of cabled and wireless methods, each with theirown costs, limitations and benefits. For this part of the assignment you need to provide a brieftechnical report for a rural community network organisation who want to build, own and operate theirown network. Please write to a reasonable level of technical understanding, they are a well-educatedcommunity.1 You should look at TurnItIn’s feedback to ensure you have properly referenced external materials. You cansubmit multiple times up to the due date. We don’t use the TurnItIn score in the mark, it’s only a potential flag.Page 2 of 4The community of the village of Bungenwood wants to build a shared network for 99 farms, across asmall 1km x 4km region. The expectation is that it will use a common infrastructure, i.e. everyone getsthe same technology connection, if not the same performance, to keep maintenance simple. Theminimum requirement is that every farm gets 25Mb/s down, though of course anything better iswelcome. They know it is likely to cost millions of dollars, especially long-term.Conveniently the houses are all on a regular 200m x 200m grid, each with a 20m driveway, and everyhome has a working phone landline (POTS) from the one centrally located exchange. There’s also 4Gmobile phone coverage across the region from a tower at the exchange. But that’s all.The sketch below shows the middle bit of the village layout, around the central exchange. The rest ofthe houses continue symmetrically either side of this bit. (Access to the exchange is from any of thefour corners around it, you can ignore the distance within that square.)Fortunately, the local Council is very supportive, you can build/dig/hang what you want, but requireany new infrastructure to be along the roads and house driveways only, you cannot run cablesthrough/over backyards to cross property boundaries.The exchange provides connectivity back to the wider internet, you just need to reach it. The exchangehas the tower on top that you can take advantage of to hang any equipment, and you can even installadditional towers if needed.a) Describe (briefly) the various approaches that could be deployed and what a deployment wouldlook like in each situation:a. Outline various copper/fibre cable approaches, what kind of equipment and cables(copper/fibre) are needed where, and how much is needed.b. Outline some reasonable wireless options.c. Your analysis should include expected downstream/upstream performance, and anylimitations. Simple diagrams will be very helpful.b) Pick one cabled and one wireless approach, and explain in more depth for those which you wouldrecommend, and why. Highlight any assumptions or simplifications you need to make. It’s only ashort first report for the organisation, they’ll go get a lot more data based on your advice.c) Estimate the deployment costs, using the following indicative pricing, for new stuff, for your twodesigns. Note that not all the necessary equipment may be here, so you should flag anything elseyou think is needed. You should also briefly describe what operational costs you might expectlonger term. What would it take to run your network for the next 30 years?a. Fibre: $10/meter for the cable (1 pair of fibres), and $500 for terminating each end of thecable (both fibres). This includes both the purchase and trenching/hanging cost.b. Copper: $3/meter for DSL/HFC-grade cable, and $150 for terminating each end. Thisincludes both the purchase and trenching/hanging cost.c. Wireless broadband transmitters can be of two types:i. Omnidirectional = $30,000 to cover a circle 3km radius, plus $500 per house.ii. Point-to-point links with 3km range = $1000 at each end.iii. A new tower = $5,000, plus any cabling back to the exchange, plus whatever gearyou want to hang on it.d. Converting one terminated fibre pair to one terminated copper pair (and vice-versa) = $50e. Switching the signals from one terminated fibre pair onto 10 copper (or fibre) pairs is amore expensive $2,000 node/cabinet with suitable electronics.

Q4. Develop a basic network design to meet the following needs of a rural community [70%]:Home broadband can be delivered through a range of cabled and wireless methods, each with theirown costs, limitations and benefits. For this part of the assignment you need to provide a brieftechnical report for a rural community network organisation who want to build, own and operate theirown network. Please write to a reasonable level of technical understanding, they are a well-educatedcommunity.1 You should look at TurnItIn’s feedback to ensure you have properly referenced external materials. You cansubmit multiple times up to the due date. We don’t use the TurnItIn score in the mark, it’s only a potential flag.Page 2 of 4The community of the village of Bungenwood wants to build a shared network for 99 farms, across asmall 1km x 4km region. The expectation is that it will use a common infrastructure, i.e. everyone getsthe same technology connection, if not the same performance, to keep maintenance simple. Theminimum requirement is that every farm gets 25Mb/s down, though of course anything better iswelcome. They know it is likely to cost millions of dollars, especially long-term.Conveniently the houses are all on a regular 200m x 200m grid, each with a 20m driveway, and everyhome has a working phone landline (POTS) from the one centrally located exchange. There’s also 4Gmobile phone coverage across the region from a tower at the exchange. But that’s all.The sketch below shows the middle bit of the village layout, around the central exchange. The rest ofthe houses continue symmetrically either side of this bit. (Access to the exchange is from any of thefour corners around it, you can ignore the distance within that square.)Fortunately, the local Council is very supportive, you can build/dig/hang what you want, but requireany new infrastructure to be along the roads and house driveways only, you cannot run cablesthrough/over backyards to cross property boundaries.The exchange provides connectivity back to the wider internet, you just need to reach it. The exchangehas the tower on top that you can take advantage of to hang any equipment, and you can even installadditional towers if needed.a) Describe (briefly) the various approaches that could be deployed and what a deployment wouldlook like in each situation:a. Outline various copper/fibre cable approaches, what kind of equipment and cables(copper/fibre) are needed where, and how much is needed.b. Outline some reasonable wireless options.c. Your analysis should include expected downstream/upstream performance, and anylimitations. Simple diagrams will be very helpful.b) Pick one cabled and one wireless approach, and explain in more depth for those which you wouldrecommend, and why. Highlight any assumptions or simplifications you need to make. It’s only ashort first report for the organisation, they’ll go get a lot more data based on your advice.c) Estimate the deployment costs, using the following indicative pricing, for new stuff, for your twodesigns. Note that not all the necessary equipment may be here, so you should flag anything elseyou think is needed. You should also briefly describe what operational costs you might expectlonger term. What would it take to run your network for the next 30 years?a. Fibre: $10/meter for the cable (1 pair of fibres), and$500 for terminating each end of thecable (both fibres). This includes both the purchase and trenching/hanging cost.b. Copper: $3/meter for DSL/HFC-grade cable, and$150 for terminating each end. Thisincludes both the purchase and trenching/hanging cost.c. Wireless broadband transmitters can be of two types:i. Omnidirectional = $30,000 to cover a circle 3km radius, plus$500 per house.ii. Point-to-point links with 3km range = $1000 at each end.iii. A new tower =$5,000, plus any cabling back to the exchange, plus whatever gearyou want to hang on it.d. Converting one terminated fibre pair to one terminated copper pair (and vice-versa) = $50e. Switching the signals from one terminated fibre pair onto 10 copper (or fibre) pairs is amore expensive$2,000 node/cabinet with suitable electronics.