Cellular Networks: An Underlying Technology for Mobile Phones, Communication System & Wireless Networking

2020 ◽  
Author(s):  
Shashiraj Teotia ◽  
Sanjeev Panwar
2008 ◽  
Vol 31 (12) ◽  
pp. 2850-2861 ◽  
Author(s):  
José Santa ◽  
Antonio F. Gómez-Skarmeta ◽  
Marc Sánchez-Artigas

Author(s):  
Dhasarathan P ◽  
◽  
Elizabeth Mathew MG ◽  
Athinarayanan AJ ◽  
Ranjitsingh A ◽  
...  

The growing exposure to digital communication system and tools leads to radiation toxicity to the users. Unaware of the safety measures even a kid at the age of one starts operating digital gadgets emitting Radio frequencyelectromagnetic radiations. Radiations from mobile phones laptops, note pad, Wi-Fi or other devices are reported to be harmful beyond the permissible limit. So there is a growing concern for the overall health, reproductive, and hormonal functions. Experimental studies were conducted by using a Wi-Fi network active laptop and live spermatozoa. The exposure of sperms to the source of EMF showed that the activity of the live sperms got reduced and mortality was observed depending on the exposure duration and the distance from EMF sources. After 5h of exposure to RF-EMF source the semen quality changed when compared with control. The vitality of sperm in the control was 95±1.0 after 2 hr and it was reduced to 60±1.5 percent at a distance of 1cm and 55±2.2 percent at a distance of 10 cm. After 5 hour exposure, the vitality was reduced to 63±1.86 at 1 cm distance and 70±1.42 at 10 cm distance. The reduction in vitality of sperm after exposure to RF-EMF source for 2 hour was 35% at 1cm and 40% at 10cm distance.


2016 ◽  
Vol 1140 ◽  
pp. 529-536
Author(s):  
Philipp Neher ◽  
Armin Lechler

In the future smart factories will satisfy the demand of highly customized products. Stationary and mobile cyber-physical systems (CPS), as part of smart factories will exchange various information. Most of that will happen wirelessly. Out of that reason, a concept for real-time wireless networking of mobile CPS based on LTE is presented in this paper. Through a combination of LTE with GPS and adaptive streaming schemes, a real-time capable wireless communication system seems possible. The paper specifies further the necessary and targeted technical requirements of industrial communication for mobile CPS. It concluded with methods to test, evaluate and validate the communication system.


This paper reflects the bandwidth expansion using component carrier scheme in LTE networks by using different OFDM’s i.e. bandwidth allocation algorithm and resource allocation algorithm are observed. Wireless cellular networks are an underlying for mobile phones, personal communication systems etc. There is a dramatic growth of wireless cellular networks in number of mobile phones. As a result, there is a significant increase in base station power consumption and data requirements. In competitive cellular industry, the power consumption in the base station has therefore become a major challenge to the vendors. Through component carrier based scheme the energy efficient LTE networks can be realized and energy efficiency can be improved to some extent through component carrier based scheme


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