scholarly journals Performance evaluation of the dynamic trajectory design for an unmanned aerial base station in a single frequency network

2017 ◽  
Author(s):  
Margot Deruyck ◽  
Alberto Marri ◽  
Silvia Mignardi ◽  
Luc Martens ◽  
Wout Joseph ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Base Station ◽  
Single Frequency ◽  
Trajectory Design ◽  
Single Frequency Network ◽  
Dynamic Trajectory

Single Frequency Network Evaluations For Multimedia Broadcast and Multicast Service (MBMS) Implementation In Outdoor and Indoor Area

2013 ◽  
Vol 64 (3) ◽  
Author(s):  
Amirudin Ibrahim ◽  
Norhudah Seman ◽  
Leow Chee Yen
Keyword(s):  
Base Station ◽  
Single Frequency ◽  
Signal Interference ◽  
Single Frequency Network ◽  
High Data ◽  
Multicast Service ◽  
Data Rates ◽  
Outdoor Area ◽  
Indoor And Outdoor

This paper presents the investigation of Multimedia Broadcast and Multicast Service (MBMS) implementation and its development in Long Term Evolution (LTE) technology. Where, it is using all the LTE advantages such as high data rates for Uplink and Downlink, and mobile support. The implementation of MBMS in LTE has improved all the problems occurred in the previous technology and introduce new alternative in broadcasting technology as well. In addition to that, the transmission mode known as Single Frequency Network (SFN) is used to improve the performance of the MBMS signal received by users in indoor and outdoor area. The evaluation on outdoor area concerns from the Base Station (BS) to the cell edge area. The investigation of data rate for certain number of user equipment is carried out at five different frequencies using SEAMCAT simulator. Then, the Signal Interference to Noise Ratio (SINR) is evaluated for three different users, which located at three different locations using MATLAB.

COMPARATIVE ANALYSIS OF THE INFLUENCE OF NATURAL AND ANTHROPOGENIC FACTORS ON THE VISTULA SPIT FOREDUNE EROSION (THE BALTIC SEA

2017 ◽  
Author(s):  
Evgenii Burnashov ◽  
Evgenii Burnashov ◽  
Konstantin Karmanov ◽  
Konstantin Karmanov
Keyword(s):  
Baltic Sea ◽  
Laser Scanning ◽  
Essential Element ◽  
Base Station ◽  
Beach Erosion ◽  
Single Frequency ◽  
Anthropogenic Factors ◽  
The Baltic Sea ◽  
Volume Deformation ◽  
The Baltic

The study gives quantitative estimation of natural landforms sensitivity of accumulative type coasts exposed to human influence. Foredune is an essential element of a morphological structure of thebarrier spits located at the Baltic Sea sand coasts. The study compares contribution of the beach erosion and deflation (soil drifting) to the foredune degradation on the sea shore of the barrier spit with or without the recreational impact. The analysis is performed for three typical polygons located on the Russian part of the Vistula Spit. Chosen polygons present shore segments with various intensity of tourism: visitors from the village, unregulated camp tourism, and nearly natural conditions. Detailed geodesic survey was carried out on these three polygons (length 515 m, 265 m, and 521 m respectively; total area – 125000 m2) in July of 2015. It was done with single-frequency geodesic GPS Trimble 5700L1 (base station) and TrimbleR3 (rover). Two DEMs were developed using the results of laser scanning of 2007 and the survey of 2015. Volume deformation for whole polygons and its particular parts (beach and foredune ridge) was made by comparison of the DEMs. In the case of touristic load the effect of deflation is 5-15 times higher than the marine erosion of foredune edge. If not affected by an anthropogenic factor the foredune erosion is caused mainly by the sea, and its impact is 6 times higher than that of the natural deflation.

COMPARATIVE ANALYSIS OF THE INFLUENCE OF NATURAL AND ANTHROPOGENIC FACTORS ON THE VISTULA SPIT FOREDUNE EROSION (THE BALTIC SEA

2017 ◽  
Author(s):  
Evgenii Burnashov ◽  
Evgenii Burnashov ◽  
Konstantin Karmanov ◽  
Konstantin Karmanov
Keyword(s):  
Baltic Sea ◽  
Laser Scanning ◽  
Essential Element ◽  
Base Station ◽  
Beach Erosion ◽  
Single Frequency ◽  
Anthropogenic Factors ◽  
The Baltic Sea ◽  
Volume Deformation ◽  
The Baltic

The study gives quantitative estimation of natural landforms sensitivity of accumulative type coasts exposed to human influence. Foredune is an essential element of a morphological structure of thebarrier spits located at the Baltic Sea sand coasts. The study compares contribution of the beach erosion and deflation (soil drifting) to the foredune degradation on the sea shore of the barrier spit with or without the recreational impact. The analysis is performed for three typical polygons located on the Russian part of the Vistula Spit. Chosen polygons present shore segments with various intensity of tourism: visitors from the village, unregulated camp tourism, and nearly natural conditions. Detailed geodesic survey was carried out on these three polygons (length 515 m, 265 m, and 521 m respectively; total area – 125000 m2) in July of 2015. It was done with single-frequency geodesic GPS Trimble 5700L1 (base station) and TrimbleR3 (rover). Two DEMs were developed using the results of laser scanning of 2007 and the survey of 2015. Volume deformation for whole polygons and its particular parts (beach and foredune ridge) was made by comparison of the DEMs. In the case of touristic load the effect of deflation is 5-15 times higher than the marine erosion of foredune edge. If not affected by an anthropogenic factor the foredune erosion is caused mainly by the sea, and its impact is 6 times higher than that of the natural deflation.

Modulation and coding scheme selection in multimedia broadcast over a single frequency network-enabled long-term evolution networks

2011 ◽  
Vol 25 (12) ◽  
pp. 1603-1619 ◽  
Author(s):  
Antonios Alexiou ◽  
Christos Bouras ◽  
Vasileios Kokkinos ◽  
Andreas Papazois ◽  
George Tsichritzis
Keyword(s):  
Long Term Evolution ◽  
Single Frequency ◽  
Single Frequency Network ◽  
Coding Scheme ◽  
Term Evolution ◽  
Scheme Selection
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