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Multihop Radio Access Network (MRAN) Protocol

This document discusses the Multihop Radio Access Network (MRAN) protocol, presented by Philipp Hofmann at the IETF 65 meeting in Dallas, Texas, in March 2006. It explores the autoconfiguration of mobile nodes (MNs) in Mobile Ad Hoc Networks (MANETs) connected to fixed networks, emphasizing gateway (GW) discovery and selection. Different operational modes for GWs are evaluated, alongside their impact on performance during node movement and gateway changes. Key findings from the evaluation of multihop handovers highlight critical considerations for future network designs.

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Multihop Radio Access Network (MRAN) Protocol

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  1. Multihop Radio Access Network (MRAN) Protocol Philipp Hofmann hofmann@docomolab-euro.com AUTOCONF WG, IETF 65, Dallas, Texas 23 March 2006

  2. Relation to AUTOCONF • Autoconfiguration of mobile nodes (MNs) in MANET connected to fixed network • Application scenario • Multiple gateways (GWs) available • GWs are fixed • GWs advertise different prefixes • MNs change gateway frequently • General functionality • GW discovery/selection • Autoconfiguration of global address • Packet forwarding to/from fixed network draft-hofmann-autoconf-mran-00

  3. Design & Evaluation • Design considerations • Decoupled operation of MRAN and MANET routing • Different GW discovery modes • MNs control GW selection • Connection maintenance during MNs’ movement • Support of MANET merging/partitioning • Performance evaluation in testbed • Performance impact of GW discovery & multihop handovers • P. Hofmann, C. Bettstetter, and C. Prehofer, "Performance Impact of Multihop Handovers in an IP-based Multihop Radio Access Network", accepted for ACM Mobile Computing and Communications Review 2006 draft-hofmann-autoconf-mran-00

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