Title :
Sensitivity Analysis of Location-Aided Multi-User Scheduling Strategies to Imperfect Location Information
Author :
Han, Congzheng ; Doufexi, Angela
Author_Institution :
Office of Commun. (Ofcom), London, UK
Abstract :
When the location information is available, this paper presents the PHY strategies which can be applied to improve the performance of a beamforming system and support multiple access with low feedback requirement. Based on a system providing real-time 3D coordinate information of all terminals in the environment, feedback-free and low feedback multi-user schedulers are considered. The location-based schedulers are evaluated with both perfect and imperfect position information and the sensitivity of the system to location errors are measured in terms of both rate and fairness performance based on statistics of commercial GPS receivers.
Keywords :
Global Positioning System; array signal processing; multi-access systems; radio receivers; scheduling; sensitivity analysis; statistical analysis; GPS receiver; PHY strategy; beamforming system; fairness performance; feedback requirement; feedback-free multiuser scheduler; imperfect location information; location error; location-aided multiuser scheduling strategies; location-based scheduler; low feedback multiuser scheduler; multiple access; rate performance; real-time 3D coordinate information; sensitivity analysis; statistics; system sensitivity; Array signal processing; Estimation error; Global Positioning System; Interference; Receivers; Wireless communication; Wireless sensor networks;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-1880-8
Electronic_ISBN :
1090-3038
DOI :
10.1109/VTCFall.2012.6399184
