The Case for DEVS in Networking M&S: Upload User Collaboration in Mobile Networks using Coordinated Multipoint

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Zhang Bo ◽  
Du Yuanfeng ◽  
Yang Dongkai

As the location based services develop, more and more researches have been focused on the positioning technologies in mobile networks. The long term evolution advanced (LTE-A) system, commercialized as the 4th generation (4G) mobile communication system, is based on the following key features: the orthogonal frequency division multiplexing (OFDM), the relay, the multiple input multiple outputs (MIMO), the carrier aggregation (CA), and the coordinated multipoint transmission and reception (CoMP). In this paper, the impact of these features on the existing positioning technology specified in the LTE-A standards is systematically investigated. Moreover, two approaches are proposed to take full advantage of these features in terms of positioning technologies and the key positioning parameters, including the reference signal time difference (RSTD) in the observed time difference of arrival (OTDOA) technology and user equipment receiving time subtracting transmitting time (UE Rx-Tx) in the enhanced cell identity (E-CID) technology.


Author(s):  
Misagh Tavanpour ◽  
Mohammad Moallemi ◽  
Gabriel Wainer ◽  
Jan Mikhail ◽  
Gary Boudreau ◽  
...  

GIS Business ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 728-750
Author(s):  
Naeem Z Azeemi ◽  
Saira Khan ◽  
Sharmini Enoch ◽  
Riktesh Srivastava ◽  
Omar al Basheer ◽  
...  

The superstructure network in the Internet of Things (IoT) is an emerging network targeted to enable an ecosystem of smart applications and services. It connectsphysical resources and peopletogether with software, hence contribute to sustainable growth, provided it combines and guarantees trustand security for people and businesses.  In this work we presented smart city viewpoint opt-in to the Firth Generation (5G) mobile networks. Both a framework and deployment are explored rigorously to assist and predicting robustness of IoT technologies and applications as a natural outcome of the Third Generation Partnership Project (3GPP) in general and LTE in particular. These technologies are compared on the basis of Air Interfaces and their Specifications i.e. Adaptive Modulation and Coding, Multiple Access Schemes and Multiple Antenna Techniques along with the evolution and comparison of the Network Architectures.


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