Pursuing best vertical hando performance in e cient and seamless manner on heterogeneous wireless networks (HWN) is important and a multidimensional issue. Perceiving toward those problems, a mechanism that exploiting collaborative and opportunistic behaviors of mobile nodes is purposed in this thesis. Initially, analyzing network information dispersion on heterogeneous wireless network gives us knowledge about how optimally gather scattered and distinguished network information in HWN. Later, we can convince that the best connectivity and network selection mechanism incurred if mobile nodes are behaving based on our cooperative arranged scheme, called temporary cooperative network (TCN). Eventually, through comprehensive arranged simulations we exhibit that our TCN schemes give better overall performance than two other network selection strategies.

Pursuing best vertical hando performance in e cient and seamless manner on heterogeneous wireless networks (HWN) is important and a multidimensional issue. Perceiving toward those problems, a mechanism that exploiting collaborative and opportunistic behaviors of mobile nodes is purposed in this thesis. Initially, analyzing network information dispersion on heterogeneous wireless network gives us knowledge about how optimally gather scattered and distinguished network information in HWN. Later, we can convince that the best connectivity and network selection mechanism incurred if mobile nodes are behaving based on our cooperative arranged scheme, called temporary cooperative network (TCN). Eventually, through comprehensive arranged simulations we exhibit that our TCN schemes give better overall performance than two other network selection strategies.

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