Performance analysis of optimized smooth handoff in mobile IP

Blondia, C.; Wijngaert, Nik Van den; Willems, G.; Casals, O.

doi:10.1145/570760.570763

Cited by 3 publications

(6 citation statements)

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“…Figure 4 presents the timing diagram for the node movements in a reliable delivery time. From this figure, the formula expressing the reliable delivery time (T Delivery ) spans over N handoffs can be expressed as follows [8]:…”

Section: Analytical Model Of Handoff Management Processmentioning

confidence: 99%

“…It considers the link delay and layer-2 link signaling on the performance measurement without considering node mobility. In [8], an analytical model is derived to evaluate the packet loss and packet delivery for UDP streams and the throughput for TCP streams involved in a mobile IP smooth handoff. However, modeling node movements mostly focuses on PCS networks.…”

Section: Introductionmentioning

confidence: 99%

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A Robust Analytical Model of Mobile IP Handoff with Multiple Traffic Profiles

Nashaat

Rizk

Mahdi

2011

Int J Wireless Inf Networks

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Mobile IP has been developed to provide the continuous information network access to mobile users. The performance of Mobile IP mobility management scheme is dependent on traffic characteristics and user mobility. Consequently, it is important to assess this performance in-depth through these factors. This paper introduces a novel analytical model of handoff management in mobile IP networks. The proposed model focuses on the effect the traffic types and their frame error rates on the handoff latency. It is derived based on general distribution of both successful transmission attempts and the residence time to be applicable in all cases of traffic characteristics and user mobility. The impact of the behavior of wireless connection, cell residence time, probability distribution of transmission time and the handoff time is investigated. Numerical results are obtained and presented for both TCP and UDP traffics. As expected, the reliability of TCP leads to higher handoff latency than UDP traffic. It is shown that, higher values of FER increase the probability of erroneous packet transfer across the link layer. A short retransmission time leads to end the connection most likely in the existing FA; however a long retransmission time leads to a large delivery time. The proposed model is robust in the sense that it covers the impact of all the effective parameters and can be easily extended to any distribution.

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Section: Analytical Model Of Handoff Management Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Robust Analytical Model of Mobile IP Handoff with Multiple Traffic Profiles

Nashaat

Rizk

Mahdi

2011

Int J Wireless Inf Networks

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“…Local loss recovery using a snoop proxy was shown to improve TCP performance during handovers [4]. A study of an optimized smooth handover in Mobile IP observed that forwarding packets from the old access point to the new one can significantly reduce packet losses [7,33]. Hsieh and Seneviratne compared several mechanisms for improving performance of Mobile IP for TCP [22].…”

Section: Iib Overlay Networkmentioning

confidence: 99%

“…The SecGo Mobile IPv4 implementation is fully compliant to the latest specification [34] and also implements NAT Traversal (NATT) tunneling [28]. The Mobile IPv4 product we used does not implement any handover enhancements, such as a smooth handoff [7]. Buffering in the Home Agent and in the Mobile Node does not modify standard Linux buffering.…”

Section: Measurements Of Vertical Handoversmentioning

confidence: 99%

“…To verify our testbed measurements and to study the effect of changes in path characteristics, we use an ideal handover model in the ns-2 simulator [40]. Essentially, an ideal handover is represented by a step change in the bottleneck link bandwidth, latency, and buffer size, as if a smooth handover with packet forwarding were implemented [7]. Throughput, aggressiveness, responsiveness, and fairness of TFRC are evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Effect of vertical handovers on performance of TCP-friendly rate control

Gurtov

Korhonen

2004

SIGMOBILE Mob. Comput. Commun. Rev.

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Smooth handoff with enhanced packet buffering-and-forwarding in wireless/mobile networks

Chou

Shin

2006

Wireless Netw

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Packet buffering-and-forwarding is a simple mechanism and has been widely used to provide seamless handoffs in many wireless/mobile networks. However, some undesirable side effects of this mechanism, if not managed appropriately, can easily diminish its effectiveness in providing seamless inter-cell transitions during a handoff. We first examine these side effects and show how inappropriate buffer management by a mobility agent could affect the TCP performance. The throughput of TCP is then studied with special emphasis on the effects of a handoff. We then propose a Last-Come-First-Drop (LCFD) buffer management policy (to be employed by mobility agents) and post-handoff acknowledgement suppression (to be used by mobile nodes) to improvement the TCP performance. Our enhancements are backward compatible and suitable for the gradual/incremental deployment. By deriving an analytical model and conducting numerical analysis, we show that our scheme can improve the TCP throughput up to 30%. Finally, we conduct the ns-2-based simulation to confirm these numerical results, and demonstrate the applicability of the analytic model for predicting TCP throughput in other handoff schemes.

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Performance analysis of optimized smooth handoff in mobile IP

Cited by 3 publications

References 0 publications

A Robust Analytical Model of Mobile IP Handoff with Multiple Traffic Profiles

A Robust Analytical Model of Mobile IP Handoff with Multiple Traffic Profiles

Effect of vertical handovers on performance of TCP-friendly rate control

Smooth handoff with enhanced packet buffering-and-forwarding in wireless/mobile networks

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