Paper Info
Title
Implementation of LTE/WiFi link aggregation with very tight coupling
Abstract
The tremendous increase of mobile data traffic pushes operators to find quick and efficient solutions in order to avoid an overload on their networks. Using WiFi to offload a part of the traffic is interesting for the operators as they can take advantage of the unlicensed bands and high bit rates. Moreover, thanks to the convergence of fixed and cellular networks, it is possible to connect WiFi access points to the LTE eNodeBs in order to have Very Tight Coupling between LTE and WiFi. Thus, the different flows are merged at the link layer (i.e. PDCP) and share the same IP instance. This allows the terminal to have a unique IP address, ensuring a seamless experience when using WiFi and LTE simultaneously. However, both networks can have different delays. In this paper, we investigate the impact of such differences in the delay by means of a real implementation of very tight coupling on an open test bed. We show that aggregation of LTE and WiFi is beneficial only when the delays are similar.
Year
DOI
Venue
2017
10.1109/PIMRC.2017.8292259
2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
Keywords
Field
DocType
cellular networks,WiFi access points,LTE eNodeBs,tight coupling,link layer,unique IP address,mobile data traffic,unlicensed bands,high bit rates,fixed networks,LTE-WiFi link aggregation
Convergence (routing),PDCP,Computer science,Testbed,Computer network,Link layer,Cellular network,Link aggregation,Coupling (computer programming),Mobile broadband
Conference
ISBN
Citations 
PageRank 
978-1-5386-3532-2
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Younes Khadraoui121.85
Xavier Lagrange224739.58
Annie Gravey328738.10