Title :
Performance Study of an Enhanced Downlink Control Channel Design for LTE
Author :
Einhaus, M. ; Wengerter, C. ; Ohlhorst, J. ; Feng, S.
Author_Institution :
Panasonic R&D Center Germany GmbH, Langen, Germany
Abstract :
The expected extensive use of new transmission schemes and network deployment paradigms for 3GPP Long Term Evolution (LTE) systems will significantly increase the pressure on the downlink control channel structure. More users than before will be scheduled within a single transmission interval by the base station due to extensive use of multi-user multiple-input multiple output (MU-MIMO) transmission and cross-carrier scheduling. In order to meet these requirements, new control channel designs facilitating frequency-selective allocation and precoding for the transmission of downlink control information are currently discussed in 3GPP. In this paper we discuss the features of such an enhanced downlink control channel design and provide a detailed performance comparison between the conventional control channel design and the enhanced one by means of stochastic system level simulations.
Keywords :
3G mobile communication; Long Term Evolution; MIMO communication; control system synthesis; frequency allocation; precoding; scheduling; stochastic processes; telecommunication control; wireless channels; 3GPP LTE system; 3GPP Long Term Evolution system; MU-MIMO transmission; base station; cross-carrier scheduling; downlink control information transmission; enhanced downlink control channel design; frequency-selective allocation; multiuser multiple-input multiple output transmission; network deployment paradigm; precoding; single transmission interval; stochastic system level simulation; Downlink; Error analysis; Interference; OFDM; Resource management; Signal to noise ratio; Throughput;
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.2012.6240100
