Fereidoun H. Panahi

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In this paper, we present a cognitive radio (CR) based statistical framework for a two-tier (femto-macro) heterogeneous cellular network. In this framework, the coverage probability of an arbitrary femto user is determined. Using tools from stochastic geometry and point process theory (in this paper, the spatial Poisson point process (PPP) theory is used)(More)
This paper proposes a new fuzzy-based multi-rate STBC transmission method over dynamic fading channels in order to have an optimal channel usage and to control performance according to the instantaneous channel situations. The proposed method employs a fuzzy inference system (FIS) over estimated average delay and minimum value of cost function designed for(More)
We present centralized-based iterative algorithms that jointly determine the optimal transceiver filters as well as the optimum power allocation for a <inline-formula> <tex-math notation="LaTeX">$K$ </tex-math></inline-formula>-user multiple-input multiple-output (MIMO) interference channel (IC). The optimality criterion is developed on the basis of the(More)