TY - JOUR
AU1 - Pan, Cunhua
AU2 - Ren, Hong
AU3 - Elkashlan, Maged
AU4 - Nallanathan, Arumugam
AU5 - Hanzo, Lajos
AU6 - 
AB - 780 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 18, NO. 2, FEBRUARY 2019 Robust Beamforming Design for Ultra-Dense User-Centric C-RAN in the Face of Realistic Pilot Contamination and Limited Feedback Cunhua Pan , Hong Ren, Maged Elkashlan , Arumugam Nallanathan, Fellow, IEEE, and Lajos Hanzo , Fellow, IEEE Abstract— The ultra-dense cloud radio access network techniques of achieving a high system throughput [1]. (UD-CRAN), in which remote radio heads are densely deployed In UDNs, the average distance between small BSs and users in the network, is considered. To reduce the channel estimation can be dramatically reduced, which can translate into improved overhead, we focus on the design of robust transmit beamforming link reliability. However, since all small BSs reuse the same for user-centric frequency division duplex UD-CRANs, where frequency, the users are also exposed to severe inter-cell only limited channel state information (CSI) is available. Specif- ically, we conceive a complete procedure for acquiring the CSI interference, which is a severe performance limiting factor. that includes two key steps: channel estimation and channel Hence, the interference should be judiciously managed in quantization. The phase ambiguity (PA) is also quantized for order to reap the potential benefits of UDNs. As a 
TI - Robust Beamforming Design for Ultra-Dense User-Centric C-RAN in the Face of Realistic Pilot Contamination and Limited Feedback
JF - IEEE Transactions on Wireless Communications
DO - 10.1109/twc.2018.2882442
DA - 2019-02-01
UR - https://www.deepdyve.com/lp/unpaywall/robust-beamforming-design-for-ultra-dense-user-centric-c-ran-in-the-6mu4PyX5rq
DP - DeepDyve
ER -