dc.creator | Tsoukatos, K. P. | en |
dc.creator | Chrisanthopoulou, M. P. | en |
dc.creator | Apostolaras, A. | en |
dc.date.accessioned | 2015-11-23T10:52:27Z | |
dc.date.available | 2015-11-23T10:52:27Z | |
dc.date.issued | 2009 | |
dc.identifier | 10.1007/s11277-009-9749-5 | |
dc.identifier.issn | 0929-6212 | |
dc.identifier.uri | http://hdl.handle.net/11615/34081 | |
dc.description.abstract | We consider backlog-driven power control and antenna beamforming as a means to maximize network throughput in a wireless uplink, where a base station receives with an antenna array from single-antenna wireless users. Throughput maximization gives rise to an optimization problem which is in general non-concave. We introduce a cross-layer, alternating maximization algorithm searching for the optimal solution, and a variant of the algorithm with reduced complexity. The algorithm alternates between a power control step and a beamforming step. Simulation results illustrate the convergence of the proposed scheme to a locally optimal pair of power vector and beamforming matrix, and quantify its throughput gains in a system with stochastic arrivals. | en |
dc.source | Wireless Personal Communications | en |
dc.source.uri | <Go to ISI>://WOS:000270439600003 | |
dc.subject | Wireless throughput | en |
dc.subject | Beamforming | en |
dc.subject | Power control | en |
dc.subject | Alternating | en |
dc.subject | maximization | en |
dc.subject | NETWORKS | en |
dc.subject | DOWNLINK | en |
dc.subject | Telecommunications | en |
dc.title | Cross-Layer Antenna Beamforming and Power Control in Wireless Uplinks | en |
dc.type | journalArticle | en |