Interference mitigation under degrees-of-freedom sensing uncertainties in opportunistic transmission
Document typeConference report
Rights accessOpen Access
Inter-system interference may limit the performance of co-existing systems in dense heterogeneous wireless networks. Context-aware waveform design can profitably overcome this limitation. However, the latter substantially depends on degrees-of-freedom (DoF) sensing mechanisms. In this work, we show that total least-squares (TLS)-based waveform design is robust against sensing uncertainties. Given the equivalence of minimum norm and TLS, the latter exhibits the good properties of linear predictors, which are of paramount importance to guarantee minimum inter-system interference and detectability by neighboring nodes. Additionally, since derived solution relies on orthogonal projector onto the so- called noise subspace, we can efficiently and iteratively construct an orthogonal waveform-book enabling the presented transmission scheme in multi-carrier scenarios. Simulation results are presented to support our theoretical contributions, and to highlight any potential advantage of proposed solution in crowded heterogenous wireless networks.
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CitationBorras, J.; Vazquez, G. Interference mitigation under degrees-of-freedom sensing uncertainties in opportunistic transmission. A: IEEE Global Communications Conference. "2019 IEEE Global Communications Conference (GLOBECOM)". 2019, p. 1-6.
- SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions - Ponències/Comunicacions de congressos 
- Doctorat en Teoria del Senyal i Comunicacions - Ponències/Comunicacions de congressos 
- Departament de Teoria del Senyal i Comunicacions - Ponències/Comunicacions de congressos [3.026]
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