Beamforming and bit-loading strategies for multi-user SDMA with admission control
2005 (English)In: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 2005, Vol. 2, 842-846 p.Conference paper (Refereed)
In this paper, we address the problem of transmit beamforming, power allocation, bit loading, and admission control in a multi-user scenario, where several single antenna mobile terminals are served by one base station equipped with an antenna array. In particular, we explore the impact of using either optimal or zero-forcing transmit beamforming schemes in combination with different bit allocation strategies, namely the Maximization of the Sum Rate (MSR), the Maximization of the Minimum Rate (MMR) and a modified version of the latter, for a finite set of modulation schemes. The performance evaluation is conducted by means of system-level simulations, using a realistic channel model for urban micro cells, with an emphasis not only on the aggregated cell throughput but also on the associated fairness issues.
Place, publisher, year, edition, pages
2005. Vol. 2, 842-846 p.
Access control, Antennas, Beamforming, Computer simulation, Mobile radio systems, Optimization, Bit loading, Maximization of the Sum Rate (MSR), Mobile terminals, Power allocation, Space division multiple access
IdentifiersURN: urn:nbn:se:kth:diva-35668ScopusID: 2-s2.0-34047243262OAI: oai:DiVA.org:kth-35668DiVA: diva2:429227
2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005; Berlin
QC 201107042011-07-042011-07-042011-11-04Bibliographically approved