CAO Yuan, WEN Yinghong, MENG Xiangyang, XU Wei. Performance Evaluation with Improved Receiver Design for Asynchronous Coordinated Multipoint Transmissions[J]. Chinese Journal of Electronics, 2016, 25(2): 372-378. doi: 10.1049/cje.2016.03.026
Citation: CAO Yuan, WEN Yinghong, MENG Xiangyang, XU Wei. Performance Evaluation with Improved Receiver Design for Asynchronous Coordinated Multipoint Transmissions[J]. Chinese Journal of Electronics, 2016, 25(2): 372-378. doi: 10.1049/cje.2016.03.026

Performance Evaluation with Improved Receiver Design for Asynchronous Coordinated Multipoint Transmissions

doi: 10.1049/cje.2016.03.026
Funds:  This work is supported by the National Natural Science Foundation of China (No.U1534208) and National "Twelfth Five-Year" Plan for Science & Technology Support (No.2015BAG12B01).
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  • Corresponding author: WEN Yinghong (corresponding author) received her Ph.D. degree in transportation automation and control in 1998 from North Jiaotong University, where she is currently the professor and Ph.D. supervisor. She is the director of the EMC Laboratory of Beijing Jiaotong University, and also is the senior member of IEEE. Her research interests include radio wave propagation caracteristics, wireless communication analysis in railway field.
  • Received Date: 2014-04-15
  • Rev Recd Date: 2014-05-20
  • Publish Date: 2016-03-10
  • Joint transmission is one of the major transmission schemes in Coordinated multipoint (CoMP) transmission/reception systems for Long term evolutionadvanced (LTE-A). Due to different distances between User equipments (UE) and Base stations (BS), signals are not able to arrive at the receiver with perfect synchronization, which implies that the reception at UE is asynchronous. This paper presents an evaluation on asynchronous UE reception in multi-cell downlink joint transmission systems using our LTE-based CoMP simulator. Then, due to asynchronous reception, we propose an improved reception strategy to mitigate the interference which compensate for Rx timing difference on Joint transmission (JT) CoMP systems. Simulation results show that the per-subband global precoding scheme widely used in the CoMP system is considerably sensitive to asynchronous reception since the performance is dominated by the subcarrier used for precoding vector calculation. It is verified that our proposed solution is able to achieve significant improvements under asynchronous reception.
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