Access Network Selection in a 4G Environment

Author(s):  
Vasuky Mohanan ◽  
Rahmat Budiarto ◽  
Sivakumar Ramakrishnan

4G networks provide bandwidth of up to 1Gbps for a Mobile Node (MN) that is moving at pedestrian speed. On the other hand, it also supports mobile nodes that can move at a speed of 250 km/hr with bandwidths value of 100 Mbps. This sets the premise of a network that supports diverse needs. This goal will be harder to achieve if Network Selection Problems (NSP) are not addressed comprehensively. NSP refers to the selection of target access network selection from a collection of Candidate Networks (CNs) when MNs are moving from one access network into another. The most logical way of achieving this is to select the “best” network. This translates to identifying performance values of the CNs. The analysis in this chapter shows clearly that access network selection done based on limited criteria is detrimental in achieving optimum communication. Instead, this chapter suggests a framework that would be complementary to a 4G network.

2020 ◽  
Vol 17 (5) ◽  
pp. 243-265 ◽  
Author(s):  
Jiandong Xie ◽  
Sa Xiao ◽  
Ying-Chang Liang ◽  
Li Wang ◽  
Jun Fang

Author(s):  
Konstantinos V. Katsaros ◽  
Denis Shtefan ◽  
Vasilis Sourlas ◽  
Ioannis Psaras ◽  
Sergi Rene ◽  
...  

sportlogia ◽  
2021 ◽  
Vol 17 (1) ◽  
pp. 13-24
Author(s):  
Željko M. Rajković ◽  
◽  
Darko N. Mitrović ◽  
Vladimir K. Miletić ◽  
Petar M. Spaić ◽  
...  

Modern diagnostics in rowing enables more and more possibilities for recording, and comparing numerous stroke variables. At the same time, many coaches fall into the trap of strict respect for the prescribed norms, ratios, and temporarily results, which the athlete must achieve if he wants to stay in the world of competitive rowing. On the example of the comparison of rowing schools RC "Danubius" and RC "Partizan", descriptive indicators are on the side of RC "Danubius" at a time of 2000m, average force and average power. No significant differences were found in average force (sig = 0,167) between rowers of RC "Danubius" and RC "Partizan", while statistically significant differences were recorded in time at 2000m (sig = 0,036) and power (sig = 0,02) in favor of rowers of RC “Danubius”. On the other hand, a higher correlation of average force (-0,955) and power (-0,928) with time on 2000m was achieved by RC "Partizan" than RC "Danubius" (-0,931) and (-0,896). The correlation between the average force, and the average power within one team shows a higher correlation for RC “Partizan" (0,95) compared to RC "Danubius" (0,755). The obtained results are not enough for single rower or crew elimination from competition to recreational section in the process of too frequent and strict selection of rowers, considering different possible ways of building rowing techniques and numerous parasitic factors that may affect measured variables, specialy at the age under 14 and novice rowers in general.


2007 ◽  
Vol 23 (1-2) ◽  
pp. 13-20
Author(s):  
Andrey Kurtenkov

It is related leg problems to the realization of the necessity of doing a detailed analysis of the phenotype correlations between body weight and exterior measurements. As a result of the study, lower coefficients have been obtained of the correlation between the girth of the tarso metatarsus on one hand, and the body weight and the girth behind the wings, on the other hand (respectively 0.563 and 0.608), compared with the one between the body weight and the girth behind the wings (0.898). It is advisable in the selection of ostriches to take into consideration the necessity of a higher phenotypic correlation between the girth of the tarso metatarsus on the one hand, and the body weight and the girth behind the wings on the other hand, with a view to preventing leg problems.


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