Results 161 to 170 of about 1,762 (195)

TD-LTE Downlink Performance Assessment in High Speed Scenarios

2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016
Long Term Evolution (LTE) is expected to substitute the Global System for Mobile Communications (GSM) as the radio access technology for railway communications. Recently, especial attention has been devoted to high-speed trains since this particular environment poses challenging problems in terms of performance simulation and measurement.
Dan Fei, Jose Rodriguez-Pineiro, Jose A. Garcia-Naya, Luis Castedo, Ke Guan, Lei Xiong   +5 more
openaire   +1 more source

User Experience Evaluation for TD-LTE Based on TUDR

2011 7th International Conference on Wireless Communications, Networking and Mobile Computing, 2011
In practical use, data traffic has a feature of high-burst in wireless network, which means that the serve request of a user is not continuous. With full buffer traffic model, network operators can give evaluations on the peak data rate and the least data rate of heavy load network.
Xianling Wang, Dajie Jiang, Yafeng Wang, Guangyi Liu, Dacheng Yang   +4 more
openaire   +1 more source

Improved Single-Stream Beamforming Algorithm in TD-LTE System

2014 IEEE 17th International Conference on Computational Science and Engineering, 2014
Beam forming (BF) is a pre-signal processing technique used in sensor arrays for directional signal transmission or reception. It produces directional BF by adjusting the weighted coefficient of each array element to obtain obvious array gain. At present, the most common BF algorithms are eigen-based Beam firming (EBB) algorithm and grid of beam (GOB ...
Yanan Liu, Hao Liu, Tianxiang Jia, Teng Wang   +3 more
openaire   +1 more source

Physical-layer security challenges of DSA-enabled TD-LTE

Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management, 2011
The Time-Division mode for Long Term Evolution (TD-LTE) is viewed by many as the first waveform that will be enabled by Dynamic Spectrum Access (DSA) and see widespread adoption in both the commercial and public safety arena. The Third Generation Partnership Project (3GPP) is developing standards for DSA-enabling TD-LTE.
Chowdhury Shahriar, Shabnam Sodagari, T. Charles Clancy   +2 more
openaire   +1 more source

Research on BS antenna configuration in TD-LTE system

IET International Conference on Communication Technology and Application (ICCTA 2011), 2011
The performance of employing three typical BS antenna configurations of the TD-LTE system is evaluated in this work. Simulation result of three typical antenna configurations shows that the 0.7 λ column spacing 4 columns 8 antenna elements dual polarized smart antenna is a cost-effective way for the TD-LTE system. The UL cell average SE (SE) of 0.7 λ 8
null Yanjie Dong, null Lijun Li, null Weidong Wang, null Yinghai Zhang   +3 more
openaire   +1 more source

Integrated Train Ground Radio Communication System Based TD‐LTE

Chinese Journal of Electronics, 2016
In existing metro systems, the train ground radio communication system for different applications are deployed independently. Investing and constructing the communication infrastructures repeatedly wastes substantial social resources, and it brings difficulties to maintain all these infrastructures. We present the communication Quality of service (QoS)
Hongli Zhao, Yuan Cao, Li Zhu, Wei Xu
openaire   +1 more source

A Novel Initial Cell Search Scheme in TD-LTE

2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
In LTE system, in order to access the network, user equipment (UE) should detect the primary synchronization signal (PSS) and secondary synchronization signal (SSS) in downlink (DL) signal from the surrounding base stations (BS). This paper presents a novel initial cell search (ICS) scheme in TD-LTE system that contains two steps.
Zhi Yan, Gang Sun, Xin Wang
openaire   +1 more source

Simulation and research of TD-LTE power control algorithm

2012 7th International Conference on Computer Science & Education (ICCSE), 2012
Uplink power control is a key radio resource management function. It is typically used to maximize the power of the desired received signals while limiting the generated interference. This paper presents the 3GPP long Term Evolution (LTE) power control mechanism, and compares its performance to two reference mechanisms.
openaire   +1 more source

TD-LTE Wireless Private Network QoS Transmission Protection

Applied Mechanics, Mechatronics and Intelligent Systems, 2015
Jianming Zhang, Chao Cheng, Zanhong Wu
openaire   +1 more source

Reliability of narrow-band TD-LTE network transmission

2015
Zanhong Wu, Chao Cheng, Jianming Zhang
openaire   +1 more source