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Títol: Evolution of spatial and multicarrier scheduling: towards multi-cell scenario
Autor: Henarejos, Pol
Pérez Neira, Ana Isabel
Tralli, Velio
Moretti, Marco
Dimitriou, Nikos
Dainelli, Giulio
Altres autors/autores: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions
Signal theory (Telecommunication)
Quality of Service
Senyal, Teoria del (Telecomunicació)
Tipus de document: Conference report
Descripció: OFDMA systems are considered as the promising multiple access scheme of next generation multi-cellular wireless systems. In order to ensure the optimum usage of radio resources, OFDMA radio resource management algorithms have to maximize the allocated power and rate of the di erent subchannels to the users taking also into account the gen- erated co-channel interference between neighboring cells, which a ects the received Quality of Service. This paper discusses various schemes for power distribution schemes in multiple co-channel cells. These schemes include centralized and distributed solutions, which may involve various degrees of complexity and related overhead and may employ procedures such as linear programming. Finally, the paper introduces a new solu- tion that uses a network ow model to solve the maximization of the multi-cell system sum rate. The application of spatial beamforming at each cell is suggested in order to better cope with interference.
Altres identificadors i accés: Henarejos, P. [et al.]. Evolution of spatial and multicarrier scheduling: towards multi-cell scenario. A: Proceedings MOBILIGHT'2010 (International Conference on Mibile Lightweight Wireless Systems). "Proceedings MOBILIGHT'2010 (International Conference on Mibile Lightweight Wireless Systems)". Barcelona: 2010, p. 1-13.
http://hdl.handle.net/2117/9056
Disponible al dipòsit:E-prints UPC
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