Performance analysis of Mobile IP handoffs

Fikouras, Nikolaus A.; Malki, Karim El; Cvetkovic, S.R.; Kraner, M.

doi:10.1109/apmc.1999.833706

Cited by 19 publications

(14 citation statements)

References 1 publication

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“…However, the significant MIP handoff delay (the movement detection process alone may range up to 3 seconds [17]) affects the service quality especially of multimedia applications, while it constitutes an inefficient solution for 802.11 systems. Several techniques have been proposed to optimize the MIP performance (long handover delays make MIP unable to preserve open IP sessions upon IP handovers) by either improving MIP handoff latency, or by optimizing MIP routing.…”

Section: Related Workmentioning

confidence: 99%

Improvements on “IP – IAPP”: A fast IP handoff protocol for IEEE 802.11 wireless and mobile clients

2006

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One of the most critical issues in introducing Wireless LAN (WLAN) real-time and delay sensitive applications, such as Voice over IP (VoIP), is guaranteeing IP service continuation during inter-subnet Basic Service Set (BSS) transitions. Even though WLANs offer very high channel bandwidth, they exhibit long network-layer handoff latency. This is a restraining factor for mobile clients using interactive multimedia applications such as VoIP or video streaming. In a previous work, we presented a novel fast and efficient IP mobility solution, called "IP-IAPP", which offers constant IP connectivity to the 802.11 mobile users and successfully preserves their ongoing sessions, even during subnet handoffs (fast recovery of active connections). It is an 802.11-dependent IP mobility solution, which accelerates the network reconfiguration phase after subnet handoffs and significantly reduces the IP handoff latency. It restores L3 connectivity almost simultaneously to the L2 connectivity after a subnet handoff, due to a zero-delay movement detection method. As a result, even the most demanding next generation WLAN applications such as Voice over WLAN (VoWLAN) suffer insignificant disruption. In this paper we present an improved version of the IP-IAPP mobility mechanism (new optimized protocol procedures). Certain extensions have also been incorporated to the initial proposal, for the provision of more advanced services: (a) secure inter-AP IP-IAPP communications, (b) zero patching on the clients s/w, and (c) support of clients which use a dynamic IP address. Performance measurements out of further and more complex testing verify that the proposed method outperforms other existing mobility solutions, and still introduces the lesser imperative amendments to the existing 802.11 wireless LAN framework.

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Section: Related Workmentioning

confidence: 99%

Improvements on “IP – IAPP”: A fast IP handoff protocol for IEEE 802.11 wireless and mobile clients

2006

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“…A performance evaluation of the impact of LSC and ErCS on service performance, can be found in [5,6], even if these papers consider only "single" handover (i.e., one at a time) and only the case of adjacent cells. The EyCS is not analyzed, but its performance is similar to that of ErCS, thanks to T adv usually set to values close to 1 second.…”

Section: Eager Cell Switching (Ercs)mentioning

confidence: 99%

“…The aim of this paper is to show that the performance of existing MIP layer MDAs (see [5,6]) can be significantly improved with respect to currently available solutions. Our proposal is a novel handover scheme driven by a layer 3 MDA, named Enhanced Lazy Cell Switching (ELCS), which retains the positive features of both the existing MDAs categories cited above.…”

Section: Introductionmentioning

confidence: 97%

A Layer 3 Movement Detection Algorithm Driving Handovers in Mobile IP

2005

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The evolution and the spreading of wireless access technology and the consequent increase of user mobility will make handover procedures critical for the provision of Quality of Service in the next generation wireless Internet. Often, layer 3 handovers are supposed to be driven by access layer procedures. In this way, the movement detection delay can be reduced, but at the expenses of making the Mobile IP protocol dependent of lower layer implementations. Furthermore, this approach may not be effective when users roam among heterogeneous networks. Nevertheless, movement detection algorithms, which operate at the Mobile IP layer, imply appreciable delays, usually intolerable for real time services.In this paper, we propose a Mobile IP handover scheme based on a novel movement detection algorithm at layer 3, able to timely manage migrations by exploiting advertisements losses, combined with a two-timers mechanism.We analyze the performance of our algorithm in terms of handover delay and throughput, and we show that our solution is able to decrease the movement detection delay as much as 47% with respect to other literature solutions that pursue similar approaches. In addition, this feature implies also higher values of the throughput seen by the TCP layer.

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“…Fikouras et al studied the performance of MIP handover [6]. According to the results of their study, handover latency is largely dependent on the efficiency of the various movement detection methods such as Lazy Cell Switching, Eager Cell Switching, and Prefix Matching.…”

Section: Introductionmentioning

confidence: 99%

“…Fast Handover provides seamless handover in wireless IP networks using a layer 2 (L2) trigger. To evaluate the performance of Fast Handover in different network environments, several studies have been done [4] [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Fast Handover in Mobile IPv6 Networks

Pack

Choi

2003

Personal Wireless Communications

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Abstract. The Fast Handover protocol [1] provides seamless handover in wireless IP networks by minimizing handover latency. To reduce handover latency and to provide faster handover, Fast Handover uses anticipation based on layer 2 (L2) trigger information. Therefore, it incurs higher signaling costs compared with the basic Mobile IP protocol. Furthermore, since the L2 trigger is based on fluctuating wireless channel states, the handover anticipation using the L2 trigger may sometimes be incorrect. In the case of incorrect anticipation, unnecessary buffer space may be used for the purpose of providing a smooth handover. Therefore, it is essential to analyze these overhead costs, in order to evaluate and compare the performance of Fast Handover with that of the basic Mobile IP protocol. In this paper, we analyzed the overhead associated with Fast Handover including the signaling cost and the packet delivery cost. We formulated these costs based on a timing diagram and compared Fast Handover with basic Mobile IPv6 in terms of their packet loss rates and buffer requirements. Also, we studied the impact of the L2 triggering time on the total overhead cost. As a result, we found that the L2 triggering time is an important factor to consider in the optimization of handover performance.

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Performance analysis of Mobile IP handoffs

Cited by 19 publications

References 1 publication

Improvements on “IP – IAPP”: A fast IP handoff protocol for IEEE 802.11 wireless and mobile clients

Improvements on “IP – IAPP”: A fast IP handoff protocol for IEEE 802.11 wireless and mobile clients

A Layer 3 Movement Detection Algorithm Driving Handovers in Mobile IP

Performance Analysis of Fast Handover in Mobile IPv6 Networks

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