Low latency handoff mechanisms and their implementation in an IEEE 802.11 network

Blondia, Chris; Casals, O.; Cerdà, Llorenç; Wijngaert, Nik Van den; Willems, Gert; Cleyn, Peter De

doi:10.1016/s1388-3437(03)80246-9

Cited by 12 publications

(12 citation statements)

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“…This approach implies a clear separation between L2 and L3 handoff functionality but may lead to unacceptable handoff latencies. Indeed, the messages generated by the registration process need some time to propagate through the network, and the MN is unable to send or receive packets during that time [17]. For these reasons, the IETF's mobile IP workgroup has proposed so-called low latency handoff schemes, which are distinguished as Pre-Registration and Post-Registration handoff.…”

Section: Mob Ile Ipmentioning

confidence: 99%

“…In this case, the nFA can decide to either drop or buffer the packets for the MN. Moreover, if the MN's connection on L2 at the nFA is not fully established, the HA can bicast traffic for the MN to both oFA and nFA in order to reduce packet loss during handoff [17].…”

Section: P R E -R E G I S T R At I O N H a Nd O Ffmentioning

confidence: 99%

“…In the case of the pre/post-registration handoff schemes, the duration of packet loss is determined by the transmission delays in making the connection path, plus L2 handoff and authentication delays [17]. Because the proposed scheme performs authentication before L2 handoff, the interval for which it is disconnected does not contain the authentication processing time but includes the L2 handoff delay and transmission delays after L2 handoff.…”

Section: Total Packet Lossmentioning

confidence: 99%

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Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS–WLAN Interworking

Choi

Song

Cho

2006

Wireless Pers Commun

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Interworking issues between Universal Mobile Telecommunication System (UMTS) and Wireless Local Area Network (WLAN) have become a great matter of interest as an increasing number of mobile internet users require broadband wireless access to IP services in the wide area. In this paper, we present a practical UMTS-WLAN interworking architecture based on 3GPP standards and propose a seamless handoff scheme that guarantees low delay and low packet loss during UMTS-WLAN handoff. For low handoff delay, the proposed handoff scheme performs pre-registration and pre-authentication processes before layer 2 handoff. Moreover, it uses packet buffering and forwarding functions in order to reduce packet loss during the handoff period. On the above basis, detailed signaling procedures are presented, together with system requirements when a mobile terminal moves from UMTS to WLAN and vice-versa. Numerical results show that the proposed scheme performs well with respect to signaling cost, handoff delay, and packet loss compared with conventional schemes.

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Section: Mob Ile Ipmentioning

confidence: 99%

Section: P R E -R E G I S T R At I O N H a Nd O Ffmentioning

confidence: 99%

Section: Total Packet Lossmentioning

confidence: 99%

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Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS–WLAN Interworking

Choi

Song

Cho

2006

Wireless Pers Commun

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“…Performance studies and an implementation of the pre-registration and postregistration method are described in [11] and [12] respectively. A comparison between the two methods is presented in [13].…”

Section: Background and Related Workmentioning

confidence: 99%

“…v GFA = l 2 *k*L a *(q 2 *w*K+g 2 *log(k)) (11) where, L a is the arrival rate of the MN. q and g are weighting factors of the router visitor list and the table lookups.…”

Section: Packet Delivery Cost For Hmipmentioning

confidence: 99%

Comparison of Signaling and Packet Forwarding Overhead for HMIP and MIFA

Diab

Mitschele‐Thiel

Böringer

2005

Lecture Notes in Computer Science

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Abstract.Handoff latency affects the service quality of real-time applications. In this paper we develop an analytical model to analyze the Mobile IP Fast Authentication protocol (MIFA) and compare it to Hierarchical Mobile IP (HMIP). The study compares the signaling costs of the protocols as well as the overall load for packet forwarding. Our study shows that MIFA minimizes the packet delivery cost compared to HMIP. Additionally, MIFA is more efficient when the arrival rate of the packets increases. Thus MIFA outperforms HMIP with respect to signaling cost. From the performance point of view MIFA performs similar to HMIP when the domain consists of two hierarchy levels only, and outperform HMIP otherwise. However, MIFA does not require a hierarchical network architecture as HMIP does.

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Dynamic Anchor Based Mobility Management Scheme for Mobile IP Networks

Yoo

Kim

2006

Parallel and Distributed Processing and Applications

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Low latency handoff mechanisms and their implementation in an IEEE 802.11 network

Cited by 12 publications

References 1 publication

Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS–WLAN Interworking

Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS–WLAN Interworking

Comparison of Signaling and Packet Forwarding Overhead for HMIP and MIFA

Dynamic Anchor Based Mobility Management Scheme for Mobile IP Networks

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