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ICTs for a Sustainable World




          Table 6: RMSE between measured and models’ estimation  and administrative cost of geo-location approach, we have
          power                                              concluded that spectrum sensing is more favourable to use in
                                                             rural areas of developing world countries than geo-location
                        Propagation Model  RMSE (dB)
                        FSPL             6.06                database approach.
                        L-R              9.64                Since cooperative spectrum sensing eliminates the limitation
                        Ericsson 9999   24.15
                        Egli            28.64                    of local spectrum sensing, the authors would like to
                        Hata            45.80                   investigate a white space network detection framework
                                                               based on cooperative spectrum sensing using hand-held
                                                               spectrum analyzers as part of their future work, and also
          5.6. Discussion of the results
                                                                extend the analysis to find the available white spaces at
                                                               UWC measurement site, which could be used for campus
          From the plots of the path losses in Figure 4 and the path
                                                                                 networking.
          loss errors in Table 5, the FSPL is the closest model to the
          measurements. The accurancy of the FSPL can be attributed
          the possiblity of clear line of site between the TV transmitter      REFERENCES
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