Conferences

@inproceedings{Gabr1810:Latency,

title = {Latency Measurement of Service Function Chaining on OpenStack Platform},

author = {Zuo {Xiang} and Frank {Gabriel} and Giang T. {Nguyen} and Frank H. P. {Fitzek}},

year  = {2018},

date = {2018-10-04},

booktitle = {2018 IEEE 43rd Conference on Local Computer Networks (LCN) (LCN 2018)},

address = {Chicago, USA},

abstract = {Service Function Chaining allows the flexible and efficient deployment of 

network functions for different applications. With Network Function 

Virtualization the elements of the chain can be provisioned in virtual 

environments on any COTS hardware. This introduces the question of where to 

position the individual network functions within the virtualization 

environment. This problem of network function placement has been studied in 

theory as an optimization problem on a graph. However it is challenging to 

apply theoretical work on practical deployments. In this paper, we perform 

a measurement campaign to study the delay introduced by Service Function 

Chaining. We propose placement heuristics and evaluate the performance on 

OpenStack. With the proposed heuristics, the service delay can be reduced 

by more than 20%. We measured the overhead introduced by a network 

function implemented in user space. The processing delay in user space can 

be twice as much as the same function in kernel space. More interestingly, 

we identified a service interruption of more than 1 second after activation 

of the chain.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Gabriel-2017,

title = {Practical deployment of network coding for real-time applications in 5G networks},

author = {Frank {Gabriel} and Giang T. {Nguyen} and Robert-Steve {Schmoll} and Juan A. {Cabrera} and Maciej {M\"{u}hleisen} and Frank H. P. {Fitzek}},

year  = {2018},

date = {2018-01-12},

urldate = {2018-01-12},

booktitle = {CCNC},

address = {Las Vegas},

abstract = {The 5G communication system will provide flexible and programmable networks by leveraging softwarization technologies such as NFV and SDN. That advanced feature of 5G networks will be demonstrated in the context of real-time video surveillance for public safety. Specifically, we demonstrate for the first time a practical deployment of Random Linear Network Coding (RLNC) with NFV and SDN technologies to improve video quality against packet loss due to congestion at the core network and signal impairment of lossy channels at network edges. The demonstration implements NFV and SDN applications on COTS devices to prove its flexibility and portability.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Nguyen-2017,

title = {Theory that Matters! Problem-based learning towards 5G Communication System and Standards},

author = {Giang T. {Nguyen} and Juan A. {Cabrera} and Robert-Steve {Schmoll} and Sreekrishna {Pandi} and Rico {Radeke} and Frank H. P. {Fitzek}},

url = {http://hdl.handle.net/10900/78148},

year  = {2017},

date = {2017-10-12},

urldate = {2017-10-12},

booktitle = {KuVS Fachgespr\"{a}ch \"Network Softwarization\" \textendash From Research to Application},

pages = {2},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Tung2016,

title = {Joint Vertical Handoff and Resource Allocation in OFDMA/TDD Systems based on Software-Defined Wireless Network},

author = {Tung V. {Doan} and Thanh {Huu Nguyen} and Nam {Manh Tran} and Hung {Tai Nguyen} and Dung {Xuan Nguyen}},

year  = {2016},

date = {2016-01-04},

booktitle = {International Conference on Ubiquitous Information Management and Communication 2016 (ACM IMCOM), Da Nang \textendash Vietnam},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}