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Transmit Diversity and Multiplexing Methods for 3G-LTE Downlink Control Channels
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- Authors
- Il Gyu Kim, Young Nam Han, Young Hoon Kim, Seung Chan Bang
- Issue Date
- 2006-09
- Citation
- Vehicular Technology Conference (VTC) 2006 (Fall), pp.999-1002
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In order to provide a smooth migration toward 4G, studies on 3G Long-Term Evolution (3G-LTE) have been announced recently in third generation partnership project (3GPP) [1] and standardization work is under way. This paper investigates multiplexing method combined with transmit antenna diversity for the downlink control channels in 3GLTE. Four schemes, such as FDM-STBC, CDM-STBC, FDM-SFBC and CDM-SFBC, are investigated for the downlink control channels, in particular, for one bit type control channels. Through computer simulation, the receiver performance of these candidate schemes are analyzed under multi-path fading channel environments. The effects of channel estimation, Doppler shift and the number of users on the performance are investigated. It is shown that the CDM-SFBC outperforms other schemes. We believe that results will provide beneficial information to design the 3G-LTE downlink control channels. © 2006 IEEE.
- KSP Keywords
- 3G LTE, Channel estimation(CE), Computer simulation(MC and MD), Control channel, Doppler Shift, LTE downlink, Long term Evolution(LTE), Multi-path, Number of users, TRANSMIT DIVERSITY, Third Generation Partnership Project