A novel interference suppression receiver for LTE downlink systems

The intra-and/or inter-cell interference have been the major obstacle that constrain the performance of cellular systems. In this regard, there have been approaches to mitigate the inherent interference in the cellular systems, which support multiple user equipments (UEs) distributed in multiple adjacent cells. However, the previous approaches to cancel the interference at the receiver were mostly available at the cost of additional system information of the interference from the neighboring cells. In this paper, we propose an advanced receiver algorithm that efficiently suppresses interferences by utilizing statistical characteristics of interference signals, hence no need for additional information to detect the interference. It is shown that the proposed receiver suppresses inter-cell interference well and outperforms conventional receivers when applied to typical LTE systems.