Yiwen Ma
ABSTRACT
Spatial Division Multiplexing (SDM) technology exploits information transmission in spatial dimension in addition to temporal dimension to improve frequency utilization and enlarge transmission capacity. Dynamic adjustment of antenna direction according to the position of targeted user station can better release the potential of SDM. In this paper, we set up a software platform to study the performance of SDM downlink in Radio Access Network (RAN) with dynamic adjustment of antenna direction. Architecture of RAN with TDM/SDM downlink is first introduced to show their difference in slot allocation and transmission capacity. Independent and identically distributed Poisson process is used to simulate the traffic source of downlink. Throughput, packet loss rate and user data rate are calculated for scenarios with TDM and 1 to 4 SDM downlink carriers. Simulation results and analysis indicate that capacity of SDM downlink is of near linear relationship with the number of antennas and transmitters used in central station. Performance of RAN is prospected to be improved enormously by application of SDM technology.
- R.H. Roy. 1998. An overview of smart antenna technology the next wave in wireless communications. In Proceedings of IEEE Aerospace Conference, 339--345.Google Scholar
Cross Ref
- Yi Li, Bin Tian, Ke-chu Yi, Quan Yu and Chun-ting Wang. 2016. A broadband mobile communication system based on multi-beam GEO satellite. Systems Engineering and Electronics, 38(2), 400--408.Google Scholar
- T.N. Kaifas, D.G. Babas, G. Toso and J.N. Sahalos. 2016. Multibeam antennas for global satellite coverage: theory and design. IET Microw. Antennas Propag., 10(14), 1475--1484.Google ScholarCross Ref
- Le-zhu Zhou, Dou Li and Wen-jia Guo. 2001. Review of Multiple-Beam Antennas for Satellite Communications. ACTA ELECTRONICA SINICA, 29(6), 824--828.Google Scholar
- Yan Shi and Wei-wei Yu. 2018. Study of a Distributed Link Scheduling Algorithm in TDMA Networks Using Co-time Co-frequency Full Duplex. ACTA ELECTRONICA SINICA, 46(2), 507--512.Google Scholar
- Yong Qin, Jun Zhang and Tao Zhang. 2009. Effect of TDMA Timeslot Assignment on Traffic Delay. ACTA ELECTRONICA SINICA, 37(10), 2277--2283.Google Scholar
- Shao-gang Zhao, Zheng-rong Xiao and Wei-ling Wu. 2005. Capacity Comparison of CDMA and TDMA in Vector Broadcast Channel. Journal of Beijing University of Post and Telecommunications, 28(2), 68--71.Google Scholar
- YitaoYang, Zhengxin Ma and Yuhan Wang. 2019. Space Division Multiplexing Technology Based on Phased Array Antenna and Its Capacity Analysis. Telecommunication Engineering, 59(11), 1288--1292.Google Scholar
- Bo Zhang and Wei Liu. 2018. Multi-carrier based phased antenna array design for directional modulation. IET Microw. Antennas Propag., 12(5), 765--772.Google ScholarCross Ref
- G.V. Tsoulos. 1999. Smart antennas for mobile communication systems: benefits and challenges. Electronics & Communication Engineering Journal, 11(2), 84--89.Google ScholarCross Ref
Index Terms
- Study of SDM Downlink in Radio Access Network with Dynamic Adjustment of Antenna Direction
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