A Novel Seamless Handover Scheme for WiMAX/LTE Heterogeneous Networks

Edward, E. Prince

doi:10.1007/s13369-015-1984-3

Cited by 13 publications

(7 citation statements)

References 20 publications

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“…Yang and Chen have proposed a QoS reservation model [21] that reserves resources in advance at neighboring IMS networks and manages mobility by using SIP multicast [22]. During handover between LTE and WiMAX, a cross-layer architecture [4,5] recommends sending prior Re-INVITE to new AN while it is connected to old AN. During the reregistration phase, two messages are exchanged that contain IPSec SA parameters and UE's new IP address.…”

Section: Preprocessing Based Schemesmentioning

confidence: 99%

“…Time taken by REGISTER request to move between CSCF servers and HSS is denoted by CSCFtoHSS and time for INVITE request for session establishment between UE and CN in SIP is represented as UEtoCN . Schemes [2,4,5] use Re-INVITE request after handover where three messages are exchanged between UE and CN. In MIP based schemes and FIM scheme, Re-INVITE method is considered for correct comparison.…”

Section: Media Disruption Timementioning

confidence: 99%

“…During traveling, UE can move out of a current network range and may join another neighboring network by performing handover to support uninterruptible call sessions. To provide seamless vertical handover across different heterogeneous NGMNs, various solutions using IMS were proposed in the literature [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the schemes address delay in MDT by suggesting either integrating new protocols [2,4,5,[9][10][11][12] or context transfer from old servers to the new [5,7]. Preprocessing is suggested by [11][12][13] in order to save time.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Handover Based IMS Registration Scheme for Next Generation Mobile Networks

Tahira

Sher

Ullah

et al. 2017

Wireless Communications and Mobile Computing

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Next generation mobile networks aim to provide faster speed and more capacity along with energy efficiency to support video streaming and massive data sharing in social and communication networks. In these networks, user equipment has to register with IP Multimedia Subsystem (IMS) which promises quality of service to the mobile users that frequently move across different access networks. After each handover caused due to mobility, IMS provides IPSec Security Association establishment and authentication phases. The main issue is that unnecessary reregistration after every handover results in latency and communication overhead. To tackle these issues, this paper presents a lightweight Fast IMS Mobility (FIM) registration scheme that avoids unnecessary conventional registration phases such as security associations, authentication, and authorization. FIM maintains a flag to avoid deregistration and sends a subsequent message to provide necessary parameters to IMS servers after mobility. It also handles the change of IP address for user equipment and transferring the security associations from old to new servers. We have validated the performance of FIM by developing a testbed consisting of IMS servers and user equipment. The experimental results demonstrate the performance supremacy of FIM. It reduces media disruption time, number of messages, and packet loss up to 67%, 100%, and 61%, respectively, as compared to preliminaries.

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Section: Preprocessing Based Schemesmentioning

confidence: 99%

Section: Media Disruption Timementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Handover Based IMS Registration Scheme for Next Generation Mobile Networks

Tahira

Sher

Ullah

et al. 2017

Wireless Communications and Mobile Computing

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“…The performance as shown by the simulation results is satisfactory, but decreases with the increase in the mobile speed. In [29], Edward proposed a WiMAX /LTE HetNet HO algorithm. The author modeled a scheme called Session initiation protocol prior handover with cross-layer design using MIH service to reduce the session re-setup delay in a WiMAX/Long Term Evolution (LTE) HetNet.…”

Section: International Journal Of Advanced Engineering Management Anmentioning

confidence: 99%

Handover in Mobile Wireless Communication Network - A Review

Abolade¹,

Fakolujo²,

Orimogunje³

2017

IJAEMS

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Abstract-Handover is the process of achieving Continuous service as the user moves in-between cells. Handover is needed during cell-crossing or/and signal quality degradation in the current channel. During handover, there is switching among networks and thereby transfer users to another network or BS [45]. The fundamental of 5G is heterogeneous networks and in such networks, seamless handover in non-negotiable [46]. Phases of handover are: discovery, decision and execution. Network discovery finds appropriate network that satisfies user desired QoS. Decision phase is when the handover should take place (also known as a handover initiation phase). These phases determine seamlessness of the handover. Wrong time of initiation leads to unnecessary handover or call drop rate is increased and thereby result to poor QoS. Therefore, handover should take place at the right time by trigger handover decision considering all the parameters properly to ensure QoS is not affected and unnecessary handover is avoided.

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Transient Processing Analysis in a Finite-Buffer Queueing Model with Setup Times

Kempa

Kurzyk

2016

Advances in Intelligent Systems and Computing

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A Novel Seamless Handover Scheme for WiMAX/LTE Heterogeneous Networks

Cited by 13 publications

References 20 publications

Handover Based IMS Registration Scheme for Next Generation Mobile Networks

Handover Based IMS Registration Scheme for Next Generation Mobile Networks

Handover in Mobile Wireless Communication Network - A Review

Transient Processing Analysis in a Finite-Buffer Queueing Model with Setup Times

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