1. A Business Case Study for a Cognitive Radio System based on a Wireless Sensor Network PÄl GrÞnsund, Ole GrÞndalen, Markku L À hteenoja CRSM 2010, IBBT-MIT Brussels, November 22nd, 2010 Spectrum owner 1 Spectrum owner 2 Spectrum owner N Joint venture system operator
3. The SENDORA concept can be described as a "Sensor Network aided Cognitive Radio" technology Primary Network Cognitive Network Wireless Sensor Network queries on spectrum status reports on spectrum status
4. The SENDORA system architecture has 3 main parts: sensor network, communication network and fusion centre
5. The remainder of this presentation will focus on an example of a SENDORA business case for a âJoint Ventureâ Overview of the business case for a âJoint Ventureâ Introduction to Cash Flow analysis and business case assumptions Cash Flow results and sensitivity analysis Cash Flow Customers Revenue OPEX Cost CAPEX Sensors and fusion centre Cognitive functionalities New sites Customer acquisition Operation & maintenance Site rental
6. A set of spectrum owners establishes a âJoint Ventureâ that gets the right to use its owners unused spectrum At least one of the owners is an operator having a cellular infrastructure in the area Spectrum owner 1 Spectrum owner 2 Spectrum owner N Joint venture SENDORA system operator
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9. NOTE! SENDORA is an innovative concept and much research and development remains before commercial realizations will appear => the input data for the business case is uncertain => the results give indications, not definite answers or strong conclusions
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Hinweis der Redaktion
The sensor network identifies âspectrum holesâ with higher detection confidence The sensor network provides improved protection of primary networks with good interference control The capacity of the cognitive radio network is improved due to better detection of spectrum holes and interference control
NPV (Net present value) is the sum of a series of cash flows (revenues subtracted by costs), when discounted to the present value. NPV is the most important criteria when defining the profitability of the project. IRR (Internal rate of return) is the discount rate, that gives NPV = 0. The higher the IRR is, the better the project is. Assuming all other factors are equal among various projects, the project with the highest IRR would probably be considered the best.
