Paper Info
Title
PRECISE: Power aware dynamic traffic steering in tightly coupled LTE Wi-Fi networks
Abstract
LTE—Wi-Fi Radio Level Integration with IPsec Tunnel (LWIP) thrives as a complete solution to address the data requirement for telecom operators by effectively utilizing unlicensed spectrum. Co-located LWIP (C-LWIP) node couples Home eNodeB (HeNB) and WiFi Access Point (AP) at radio protocol stack to enable a unified control decision over both LTE and Wi-Fi links. The challenges pertaining to small cells viz., high co-tier interference and QoS provisioning can be effectively addressed by using LWIP. This paper proposes a novel Power awaRE dynamic traffic StEering (PRECISE) algorithm which regulates transmit powers of LTE and Wi-Fi of LWIP node in order to minimize interference across LWIP nodes in dense deployments. The PRECISE algorithm also does flow steering across LTE and Wi-Fi interfaces by employing Multi Attribute Decision Making (MADM) technique. It thrives on ensuring Guaranteed Bit Rate (GBR) flow requirements by dynamically controlling the transmit power across multiple LWIP nodes. Interference mitigation sub-problem and ensuring GBR sub-problem are formulated as Mixed Integer Non-Linear Programming (MINLP) problems. The proposed PRECISE algorithm improves the network throughput by 84% compared to 3GPP Rel-12 LTE Wi-Fi interworking and 48% compared to state-of-the-art a-optimal scheduler. It also has reduced the number of unsatisfied GBR flows by 35% as compared to a-optimal scheduler.
Year
DOI
Venue
2017
10.1109/PIMRC.2017.8292226
2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
Keywords
Field
DocType
tightly coupled LTE Wi-Fi networks,complete solution,data requirement,telecom operators,unlicensed spectrum,C-LWIP,radio protocol stack,unified control decision,high co-tier interference,transmit power,LWIP node,PRECISE algorithm,flow steering,multiple LWIP nodes,3GPP Rel-12 LTE Wi-Fi,colocated LWIP,mixed integer nonlinear programming problems,interference mitigation subproblem,bit rate flow requirements,multiattribute decision,power aware dynamic traffic steering algorithm,Wi-Fi radio level integration,WiFi access point,eNodeB,IPsec tunnel
IPsec,Spectrum management,Transmitter power output,Computer science,Bit rate,Computer network,Interference (wave propagation),Throughput,Protocol stack,EnodeB
Conference
ISBN
Citations 
PageRank 
978-1-5386-3532-2
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Thomas Valerrian Pasca S.101.01
Himank Gupta231.26
Bheemarjuna Reddy Tamma311730.57
A. Antony Franklin439032.84