Analysis of profitability of inter-system handovers between IEEE 802.11b and UMTS

Matusz, P.; Machan, P.; Woźniak, J.

doi:10.1109/lcn.2003.1243129

Cited by 7 publications

(2 citation statements)

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“…One of the pa ram e ters used to de cide that a HO must take place cor re sponds to the Re ceived Sig nal Strength Inten sity (RSSI), but this is not enough to give pri or ity to a net work dur ing the HO pro ce dure; pa ram e ters like uti li za tion cost and avail able band width must also be con sid ered. There are other meth ods that can be used to make the HO de ci sion, like the one de scribed in (Matusz et al, 2003), where a HO de ci sion is based on the through put and a time hys ter esis (in the or der of sec onds) is con sid ered to avoid the ping-pong ef fect 1 ; how ever, the time they con sider to wait for a handoff is rel a tively high and they do not spec ify the ra dio channel en vi ron ment em ployed in their sim u la tions. In this work a met ric is used to trig ger the HO pro cedure; this met ric is based on four pa ram e ters from each net work: cost, band width, dis tance and RSSI (each of these pa ram e ters is as signed a dif fer ent weight).…”

Section: Introductionmentioning

confidence: 99%

Handoff Between a Wireless Local Area Network (WLAN) and a Wide Area Network (UMTS)

Santos

García

González

et al. 2009

IIT

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With the appea rance of wire less data networks with variable cove rage, band width and handoff stra te gies, in addi tion to the growing need of mobile nodes to freely roam among these networks, the support of an inte ro pe rable handoff stra tegy for hybrid wire less data networks is a requi re ment that needs to be addressed. The current trend in wire less data networks is to offer multi media access to mobile users by emplo ying the wire less local area network (WLAN) stan dard IEEE802.11 while the user is located indoors; on the other hand, 3 rd gene ra tion wire less networks (WAN) are being deployed to provide cove rage while the user is located outdoors. As a result, the mobile node will require a handoff mecha nism to allow the user to roam between WLAN and WAN envi ron ments; up to this date several stra te gies have been proposed (Sattari et al., 2004 andHyoJin, 2007) in the lite ra ture, however, none of these have been stan dar dized to date. To support this inte ro pe ra bi lity, the mobile node must be equipped with confi gu rable wire less inter faces to support the handoff between the WLAN and the WAN networks. In this work a new algo rithm is proposed to allow a mobile node to roam between a wire less local area network (IEEE802.11) and a WAN base station (UMTS), while emplo ying IP mobi lity support. The algo rithm is imple mented in simulation, using the Network Simulator 2. Keywords: Handoff, WLAN, UMTS, Mobile IP (MIP). Resumen

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Section: Introductionmentioning

confidence: 99%

Handoff Between a Wireless Local Area Network (WLAN) and a Wide Area Network (UMTS)

Santos

García

González

et al. 2009

IIT

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“…The second one mainly consists of the Mobile IPv4 Registration process latency. During this period the MH is unable to send or receive any IPv4 packets [8].…”

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confidence: 99%

Simultaneous handover scheme for IEEE 802.11 WLANs with IEEE 802.21 triggers

Machan

Woźniak

2009

Telecommun Syst

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Handover performance in wireless networks is important, especially nowadays, when multimedia services are becoming increasingly available over the wireless devices. However, users expect uncompromised mobility when using the service. Thus, the support of multimedia services is not possible if handover is inefficient. At the same time it is clear that a strict separation between IP Layer and the Link Layer results in built-in sources of delay. The paper discusses the IEEE 802.11 and Mobile IPv4 handover performance in practical scenarios. We introduce a new simultaneous handover scheme with IEEE 802.21 triggers. In order to verify the handover performance, simulation experiments have been conducted, whose results are also presented and discussed.

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Integration of 3G Protocols into the Linux Kernel to Enable the Use of Generic Bearers

Aschenbruck

Frank

Hansmann

et al. 2004

Lecture Notes in Computer Science

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Analysis of profitability of inter-system handovers between IEEE 802.11b and UMTS

Cited by 7 publications

References 1 publication

Handoff Between a Wireless Local Area Network (WLAN) and a Wide Area Network (UMTS)

Handoff Between a Wireless Local Area Network (WLAN) and a Wide Area Network (UMTS)

Simultaneous handover scheme for IEEE 802.11 WLANs with IEEE 802.21 triggers

Integration of 3G Protocols into the Linux Kernel to Enable the Use of Generic Bearers

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