Title
Quantitative comparison of the efficiency and scalability of the current and future LTE network architectures
Author
Karimzadeh, M.
van den Berg, J.L.
Schmidt, R.D.O.
Pras, A.
Publication year
2017
Abstract
The core architecture of current mobile networks does not scale well to cope with future traffic demands owing to its highly centralized composition. Typically, it is believed that decentralization of the network architecture would be a sustainable approach to deal with ever growing amount of mobile data traffic. Nevertheless, the decentralization strategy of network architecture has not been properly examined through quantitative performance studies. Given that LTE will be the leading mobile networking technology in the coming 5-10 years, we conduct a hybrid study model to compare performance of current and future (decentralized) LTE network architectures. Particularly, our analysis presents numerical results quantifying impact of the number of attached nodes on the load at network routers and links, on the latency, and on the processing cost of the user's data and control planes. Analytical results demonstrate that decentralization of the LTE network architecture achieves higher performance compared to the current architecture and improves the latency and cost of data packet delivery more than 10 and 6 times, respectively. Furthermore, it is also observed that GTP outperforms PMIP for all studied performance metrics in the decentralized architecture and provides about twofold better latency and cost for data packet delivery and roughly 6 times lower data traffic load on the network routers. © 2017 Morteza Karimzadeh et al.
Subject
ICT
NTW - Networks
Computer architecture
Cost benefit analysis
Costs
Mobile telecommunication systems
Routers
Wireless telecommunication systems
Analytical results
Data packet delivery
Decentralized architecture
Mobile data traffic
Numerical results
Performance metrics
Performance study
Quantitative comparison
Network architecture
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http://resolver.tudelft.nl/uuid:d7edbbe7-41b1-416b-b0bf-0bfe045d948d
TNO identifier
787731
Publisher
Hindawi Limited
ISSN
1530-8669
Source
Wireless Communications and Mobile Computing, 2017
Article number
3938545
Document type
article