NDLI: Enhanced Symbol-Level Interference Cancellation for PDCCH of 3GPP LTE/LTE-A

Content Provider	IEEE Xplore Digital Library
Author	Morozov, G. Davydov, A.
Copyright Year	2014
Description	Author affiliation: Mobile & Commun. Group, Nizhny Novgorod State Univ., Nizhny Novgorod, Russia (Morozov, G.; Davydov, A.)
Abstract	In cellular communication systems, such as 3GPP LTE (3rd Generation Partnership Project Long Term Evolution)/LTE-Advanced, mutual co-channel interference from neighboring cells may significantly jeopardize the performance of all downlink physical channels, especially for receivers located at the cell-edge. A conventional approach to cope with those interference issues relies on coordination of neighboring cell transmissions. However, the design of Physical Downlink Control Channel (PDCCH) of LTE/LTE-A is not flexible enough to fully support transmitter-based inter-cell interference coordination (ICIC). Therefore, a more general receiver-based approach to suppress co-channel interference on PDCCH is being considered for LTE/LTE A. This paper proposes an enhanced iterative symbol-level inter-cell interference cancellation (SLIC) receiver designed for PDCCH. Compared to conventional SLIC, the proposed method provides more robust PDCCH link-level performance in scenarios with amplitude ambiguity of the serving and interfering signals which can occur in LTE/LTE-A systems due to the transparent, i.e., without any network signaling assistance to the user, power control on PDCCH. From simulation of PDCCH in LTE/LTE-A systems, we show that the proposed SLIC receiver provides substantial performance gains over the conventional SLIC receiver under typical PDCCH interference conditions.
Starting Page	1
Ending Page	5
File Size	459529
Page Count	5
File Format	PDF
ISBN	9781479944491
DOI	10.1109/VTCFall.2014.6965963
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Receivers Boosting Estimation Long Term Evolution Interference cancellation Downlink
Content Type	Text
Resource Type	Article

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