scholarly journals High-speed radio-resource scheduler with hardware accelerator for fifth generation mobile communications systems

2017 ◽  
Vol 6 (5) ◽  
pp. 236-241 ◽  
Author(s):  
Yuki Arikawa ◽  
Hiroyuki Uzawa ◽  
Takeshi Sakamoto ◽  
Satoshi Shigematsu ◽  
Shunji Kimura
Keyword(s):  
Mobile Communications ◽  
High Speed ◽  
Hardware Accelerator ◽  
Radio Resource ◽  
Fifth Generation ◽  
Communications Systems ◽  
Mobile Communications Systems ◽  
Resource Scheduler

scholarly journals Antenna for 5G mobile Communications Systems at 10 GHz

2018 ◽  
Vol 7 (3.36) ◽  
pp. 13
Author(s):  
Muhammad Sani Yahya ◽  
Ishaku Abdul Dalyop ◽  
Yusuf Saleh ◽  
Murtala Aminu-Baba
Keyword(s):  
Radio Astronomy ◽  
Mobile Communications ◽  
Space Research ◽  
Dual Band ◽  
Maximum Gain ◽  
Fifth Generation ◽  
Communications Systems ◽  
Mobile Communications Systems ◽  
Simulation Results ◽  
5G Mobile Communications

The design of compact dual band grid array antenna (GAA) designed on FR-4 substrate for future Fifth Generation (5G) Mobile Communications at 10 GHz is reported. The proposed antenna uses coaxial technique of feeding and has a dimension of 48 mm × 55 mm × 1.6 mm. Simulation results using CST microwave studio illustrates that the antenna has a band from 10.03 GHz to 10.68 GHz and another band from 10.7 GHz to 12.23 GHz. This excludes the 10.68 – 10.7 GHz band in which emissions were forbidden by the Radio Regulations in the sense that it has been allocated for the Radio Astronomy, Space Research and Earth Exploration Satellite (passive). The antenna has a maximum gain of 8.03 dBi at 10 GHz, thus a good candidate for the future 5G mobile communications. 

The Smart Card in Mobile Communications

2009 ◽  
pp. 1004-1028
Author(s):  
Claus Dietze
Keyword(s):  
Smart Card ◽  
Mobile Communications ◽  
Smart Cards ◽  
Mobile Banking ◽  
Wide Spread ◽  
User Identification ◽  
Security Services ◽  
Communications Systems ◽  
Mobile Communications Systems

This chapter gives an introduction into the smart card technology and its history by outlining the role of the smart card in mobile communications systems. The role of the smart card as a key enabler for services requiring or utilizing unambiguous user-identification is outlined. These services include multimedia and high-security services such as mobile commerce or mobile banking. Smart cards containing the described mechanisms provide the user with privacy and the capabilities to use information, personalized according to his needs, in a wide-spread system with a virtually unlimited number of services. Furthermore, the capabilities of the smart card to enhance services, to secure the issuers’ revenues and to increase the usage of the services by providing a trustful platform for the user are described. Future evolutions and further developments of the smart card are illustrated, including how they pave towards new types of applications and services.

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