Title :
Research on the density of demodulation reference signals for dual-layer beamforming in LTE system
Author_Institution :
Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
This paper studies the density of demodulation reference signals (DRS) for dual-layer beamforming. Both the channel estimation performance and DRS overhead were considered by translating both effects into signal interference noise ratio (SINR), and then the total effective SINR was calculated. By comparing the total effective SINR of different DRS density, it is proposed that 12 DRS in a resource block gives about balanced performance at dual-layer beamforming.
Keywords :
array signal processing; channel estimation; demodulation; interference (signal); telecommunication transmission lines; DRS overhead; LTE system; channel estimation; demodulation reference signals; dual layer beamforming; long term evolution; resource block; signal interference noise ratio; Array signal processing; Decision support systems; Demodulation; Mercury (metals); DRS; LTE; density; dual-layer beamforming;
Conference_Titel :
Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4816-6
Electronic_ISBN :
978-1-4244-4817-3
DOI :
10.1109/ICCOMTA.2009.5349184
