论文信息 - Field Experiments on Combination of Downlink CoMP and Smart Vertical MIMO in LTE-Advanced

Field Experiments on Combination of Downlink CoMP and Smart Vertical MIMO in LTE-Advanced

This paper focuses on the combination of coordinated multipoint (CoMP) transmission and Smart Vertical (SV)-Multiple-Input Multiple-Output (MIMO) base station (BS) antenna in the LTE-Advanced downlink to analyze the synergy effect on the combination, so that it presents experimental results on the combination. We investigate the gain of CoMP joint transmission (JT) and dynamic point selection (DPS) compared to non-CoMP transmission, and install a SV-MIMO antenna as BS antennas. Field experiments, which are conducted in a urban and suburban area in Japan, show that the achievable user throughput of CoMP DPS is from 20 % to 180 % greater than that for non-CoMP transmission, and no remarkable difference between CoMP JT and CoMP DPS within 5% throughput. With implementing SV-MIMO BS antenna for combination of CoMP DPS, up to 180 % throughput gain is achieved compared to using the conventional BS antenna. Finally comparing the throughput performance over different tilt angle, there is not remarkable difference for CoMP DPS transmission in both urban and suburban area.

[1] Teruo Kawamura,et al. Field Experimental Evaluation of Null Control Performance of MU-MIMO Considering Smart Vertical MIMO in LTE-Advanced Downlink under LOS Dominant Conditions , 2014, IEICE Trans. Commun..

[2] Erik Dahlman,et al. 4G: LTE/LTE-Advanced for Mobile Broadband , 2011 .

[3] Teruya Fujii,et al. A Field Trial of Multi-Cell Cooperative Transmission over LTE System , 2011, 2011 IEEE International Conference on Communications (ICC).

[4] L. Thiele,et al. Field trials using coordinated multi-point transmission in the downlink , 2010, 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops.

[5] Teruo Kawamura,et al. Experiments on Coordinated Multipoint Coherent Joint Transmission Using Remote Radio Heads in LTE-Advanced Downlink , 2013, ISWCS.

[6] Yoshihisa Kishiyama,et al. Radio Interface Technologies for Cooperative Transmission in 3GPP LTE-Advanced , 2011, IEICE Trans. Commun..

[7] Kamran Etemad,et al. Carrier aggregation framework in 3GPP LTE-advanced [WiMAX/LTE Update] , 2010, IEEE Communications Magazine.

[8] Keizo Cho,et al. MIMO base station antenna employing Mode Selection in Vertically Split Array , 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).