Research Article
Linear Receivers for Multi-cell MIMO Transmission in LTE-Advanced Downlink
@INPROCEEDINGS{10.1109/ChinaCom.2013.6694607, author={Qing Huang and Yingmin Wang}, title={Linear Receivers for Multi-cell MIMO Transmission in LTE-Advanced Downlink}, proceedings={8th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2013}, month={11}, keywords={lte-a downlink receivers}, doi={10.1109/ChinaCom.2013.6694607} }- Qing Huang
Yingmin Wang
Year: 2013
Linear Receivers for Multi-cell MIMO Transmission in LTE-Advanced Downlink
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2013.6694607
Abstract
The LTE-A (Long Term Evolution Advanced) was ratified as 4G (fourth generation) standard. In order to achieve the target of the LTE-A, efficient receivers have become one of the hot research topics. In this paper, we study some common linear receivers in LTE-A DL (downlink). Focusing on the multicell network, we derive the receive matrices and review them. The aim of this paper is to offer elementary knowledge and thorough derivation of the common linear receivers. The link level simulation results are provided to illustrate the comparison of these linear receivers. The equivalence of ZF (zero-force) and MRC (maximal ratio combining) receivers is presented by the simulation results. While the interference is strong at the objective UE (user equipment), the interference-aware receivers, such as MMSE (minimum mean square error) receiver and IRC (interference rejection combining) receiver, outperform ZF receiver and MRC receiver. The simulation results show that a maximum throughput gain of approximately 300% is achieved by the IRC receiver compared to the MRC receiver.