Beamforming and positioning-assisted handover scheme for long-term evolution system in high-speed railway

2012 ◽  
Vol 6 (15) ◽  
pp. 2335-2340 ◽  
Author(s):  
M. Cheng ◽  
X. Fang ◽  
W. Luo
Keyword(s):  
High Speed ◽  
Long Term Evolution ◽  
Evolution System ◽  
High Speed Railway ◽  
Term Evolution ◽  
Handover Scheme

Long term evolution in high speed railway environments: Feasibility and challenges

2013 ◽  
Vol 18 (2) ◽  
pp. 237-253 ◽  
Author(s):  
Jaime Calle-Sanchez ◽  
Mariano Molina-Garcia ◽  
Jose I. Alonso ◽  
Alfonso Fernandez-Duran
Keyword(s):  
High Speed ◽  
Long Term Evolution ◽  
High Speed Railway ◽  
Term Evolution

An Improved Physical Downlink Control Channel De-Resource Mapping Method in Long Term Evolution Systems

2014 ◽  
Vol 513-517 ◽  
pp. 3577-3580
Author(s):  
Dan Wang ◽  
Wen Wen Xu ◽  
Jia Luo
Keyword(s):  
Reference Signal ◽  
Long Term Evolution ◽  
Mapping Method ◽  
Control Channel ◽  
Evolution System ◽  
Resource Mapping ◽  
Modified Method ◽  
Term Evolution ◽  
System Resource

In TD-LTE (Time Division-Long Term Evolution) system, Resource Element Group (REG) is the unit of de-resource mapping for Physical Downlink Control Channel (PDCCH), due to the reference signal should be considered, which lead to the large calculation. To solve this problem, a modified method is proposed in this paper to reduce the cycles of de-resource mapping. Calculation and simulation reveal that this scheme can reduce the calculation significantly. At the same time, the feasibility and effectiveness of this modified method have been verified.

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