Title :
Impact of Gain/Phase Variation on MIMO Precoder Selection for LTE UL
Author :
Park, Chester Sungchung
Author_Institution :
Ericsson Res., San Jose, CA, USA
Abstract :
In this paper, the MIMO precoder selection of LTE uplink (UL) is evaluated taking into account the gain/phase variation between SRS and PUSCH. The gain/phase variation introduced by radio impairment is modeled and the impact on precoding gain is analyzed. The simulation results show that gain variation has a stronger impact on the precoding gain than phase variation. Specifically, a gain variation of 9 dB costs 5 dB in performance.
Keywords :
Long Term Evolution; MIMO communication; precoding; LTE UL; Long Term Evolution uplink; MIMO precoder selection; PUSCH; SRS; gain 9 dB; gain-phase variation; physical uplink shared channel; precoding gain; radio impairment; sounding reference signal; Gain; Interference; MIMO; Radio transmitters; Signal to noise ratio; Throughput; Vectors;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th
Conference_Location :
Yokohama
Print_ISBN :
978-1-4673-0989-9
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2012.6240107
