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Design and Performance Analysis of Hybrid Receiver based on System Level Simulation in Backhaul System
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 Title & Authors
Design and Performance Analysis of Hybrid Receiver based on System Level Simulation in Backhaul System
Moon, Sangmi; Chu, Myeonghun; Kim, Hanjong; Kim, Daejin; Hwang, Intae;
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An advanced receiver which can manage inter-cell interference is required to cope with the explosively increasing mobile data traffic. 3rd Generation Partnership Project (3GPP) has discussed network assisted interference cancellation and suppression (NAICS) to improve signal-to-noise-plus-interference ratio (SINR) and receiver performance by suppression or cancellation of interference signal from inter-cells. In this paper, we propose the advanced receiver based on soft decision to reduce the interference from neighbor cell in LTE-Advanced downlink system. The proposed receiver can suppress and cancel the interference by calculating the unbiased estimation value of interference signal using minimum mean square error (MMSE) or interference rejection combing (IRC) receiver. The interference signal is updated using soft information expressed by log-likelihood ratio (LLR). We perform the system level simulation based on 20MHz bandwidth of 3GPP LTE-Advanced downlink system. Simulation results show that the proposed receiver can improve SINR, throughput, and spectral efficiency of conventional system.
Advanced receiver;Downlink;LLR;Soft decision;System Level Simulation;
 Cited by
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