Locating IEEE 802.21 Mobility Services Using DNS

Abstract. Many cell-phones and Personal Digital Assistants (PDAs) are equipped with multiple radio interfaces. Because of this, devices need to have ways of efficiently selecting the most suitable access network across multiple technologies based on the physical location of the device as well as userdefined parameters such as cost, bandwidth, and battery consumption. The IEEE has standardized the 802.21 framework for media-independent handovers where dynamic selection of network interfaces is an important feature. This paper describes and evaluates a novel architecture which extends the IEEE 802.21 information service. The architecture is based on a three-layer structure with Location-to-Service Translation (LoST) servers, service provider servers and independent evaluator servers. Evaluator servers are populated with information on coverage and quality of service as provided by trusted users. The proposed architecture allows for competition at all levels and scales well due to its distributed nature. A prototype has been developed and is presented in the paper.

show abstract

“…MIH protocol messages are either sent at layer 2 or by using higher layer communication mechanisms [10,11,12,13].…”

Section: Fig 1 Media-independent Handover Frameworkmentioning

confidence: 99%

Enhanced Mobility Support for Roaming Users: Extending the IEEE 802.21 Information Service

Andersson

Forte

Schulzrinne

2010

Lecture Notes in Computer Science

View full text Add to dashboard Cite

show abstract

“…Hence, the performance of this solution is dependent on the actual underlying protocol used to carry the MIH messages. Locating IEEE 802.21 mobility servers using DNS was introduced in [10]. The performance analysis using UDP and TCP was proposed in [11].…”

Section: Related Workmentioning

confidence: 99%

Optimization Algorithm for a Handoff Decision in Wireless Heterogeneous Networks

Arun¹,

Moni²

2010

IJNGN

View full text Add to dashboard Cite

Future wireless networks will consist of multiple heterogeneous access technologies such as UMTS, WLAN and Wi-Max. The main challenge in these networks is to provide users with a wide range of services across different radio access technologies through a single mobile terminal. With regard to vertical hand off performance, there is a need for developing algorithms for connection management and optimal resource allocation for seamless mobility. The Media Independent Handover (MIH) architecture is used for the special case of handoff optimization between heterogeneous networks. The signaling messages are exchanged by triggers in 802.21 is obtained through Service Access Points (SAP). These messages must be delivered in a timely and reliable manner. In this paper, a novel solution to communicate MIH messages and to review their limitations are analyzed. An efficient solution using 3SE a Sender-Side Stream control, transport-layer protocol Extension, that modifies the Standard SCTP protocol is introduced. 3SE aims at exploiting SCTP's multi homing and multi streaming capabilities and is optimized by using MIH services. The performance is analyzed for various packet loss conditions and bandwidth capacity.

show abstract

“…The client MUST try the records in the order listed, applying the mechanism described in [RFC5679] for each. The client only resolves the subsequent domain names if attempts to contact the first one failed or yielded no common transport protocols between the MN and the server.…”

Section: Mos Domain Name List Option For Dhcpv4mentioning

confidence: 99%

“…Regarding domain name resolution, it is recommended to consider the usage of DNSSEC [RFC4033] and the aspects of DNSSEC Operational Practices [RFC4641]. Security considerations described in [RFC5679] also apply.…”

Section: Security Considerationsmentioning

confidence: 99%

Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Options for IEEE 802.21 Mobility Services (MoS) Discovery

Bajkó¹,

Das²

2009

Self Cite

View full text Add to dashboard Cite

This document defines new Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) options that contain a list of IP addresses and a list of domain names that can be mapped to servers providing IEEE 802.21 type of Mobility Service (MoS) (see RFC 5677). These Mobility Services are used to assist a mobile node (MN) in handover preparation (network discovery) and handover decision (network selection). The services addressed in this document are the Media Independent Handover Services defined in IEEE 802.21. Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

show abstract

Locating IEEE 802.21 Mobility Services Using DNS

Cited by 7 publications

References 6 publications

Enhanced Mobility Support for Roaming Users: Extending the IEEE 802.21 Information Service

Enhanced Mobility Support for Roaming Users: Extending the IEEE 802.21 Information Service

Optimization Algorithm for a Handoff Decision in Wireless Heterogeneous Networks

Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Options for IEEE 802.21 Mobility Services (MoS) Discovery

Contact Info

Product

Resources

About