Broadband Wireless Access System below 6GH
Responsible:
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Start date: 2005-11-30
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Project abstract
Project’s aim is the analysis and performance evaluation of broadband wireless access advanced systems for frequencies below 6 GHz. In particular, in collaboration with Siemens Communications S.p.A., a WiMAX cellular system has been analyzed considering two physical layers of IEEE802.16d/e standard, OFDM with subchannelization and S-OFDMA. The system performance is avaluated in terms of cell radius, coverage and throughput. The impact of advanced transmission techniques, i.e the adaptive allocation of transmission resources and the use of adaptive antenna array systems, on system performance is also analyzed. Work in progress. The analysis of the performance improvement expected by the use of advanced transmission techinques in cellular scenarios is under investigation.
Project results
Comparison between system performance of OFDM with subchannelization and S-OFDMA access techniques.
Performance evaluation of different resource optimization strategies and antennas arrays in a cellular scenario.
Performance evaluation of different resource optimization strategies and antennas arrays in a cellular scenario.
- Reggiani L., Dossi L., Galati L.: "Multi-user Sub-channel, Bit and Power Allocation in IEEE 802.16 systems", submitted to IEEE 65th Vehicular Technology Conference VTC-2007 Spring, Dublín, 23-25 April 2007.
- D. Piazza and G. Tartara, “Diversity and Multiplexing in Cooperative Wireless Cellular Networks”, Proc. IEEE International Conference on Communications ICC,24-28 June 2007, pp. 6067-6072.
- D. Piazza and G. Tartara, “Random Beamforming in Cooperative Wireless Systems”, Proceedings 15th IST Mobile and Wireless Communications Summit, 4-8 June 2006, pp.1-5.
