Supporting Multicast in Ad-Hoc networks in a Hotspot Context

• This paper discusses the usage of Ad-Hoc technologies as hotspot extension mechanisms. We propose a hybrid network where 802.16 links are used for providing high-bandwidth access, and local distribution is performed by Ad-Hoc network nodes (based on 802.11 technologies), thus covering arbitrary areas around the 802.16 stations, which might be connected to the Internet. We evaluate the performance of the system and its efficiency in providing QoS in multicast connections. For providing multicasting services, we propose two extensions of the ODMRP and MAODV routing algorithms by augmenting them with a zone routing behavior, thus producing two new hybrid multicast routing algorithms, named ZODMRP and ZMAODV. The simulation results show that ZODMRP provides the highest packet delivery ratio and lowest delay without introducing large overhead, being then able to provide predictable QoS for packet delivery in multicast sessions

Ämnesord

NATURVETENSKAP  -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences -- Computer Sciences (hsv//eng)

Nyckelord

Datavetenskap

Computer Science

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