An Optimal Cross-layer Spectrum Sharing Scheme for Cognitive Radio Based Ad hoc Network
Xiaohu You · Journal of Nanjing University of Posts and Telecommunications · 2009
A cross-layer optimization approach to the spectrum sharing in cognitive radio based Ad Hoc network is proposed.Jointly considering interference constraints among cognitive radio users and rate demand,especially considering bi-directional links and the channel heterogeneity,the optimization problem is formulated in the form of binary integer linear programming(BILP)with the objective of minimizing the total BFP(bandwidth-footprint product),and the optimal spectrum sharing and routing is presented.