Siamak S. Tabrizi

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Alternate path routing (APR) can provide load balancing and route failure protection by distributing traffic among a set of diverse paths. These benefits make APR appear to be an ideal candidate for the bandwidth limited and mobile ad-hoc networks. However, we find that APR's potential is not fully realized in ad-hoc networks because of route coupling(More)
Ad-hoc networks are network architectures that can be rapidly (ideally immediately) deployed and that do not need to rely on pre-existing infrastructure. The salient feature of this breed of networks is that they can operate in different and differing propagation and network operational conditions, which cannot be predicted during the network design stage.(More)
This research used a custom event-driven network simulator to evaluate Alternate Path Routing's (APR's) behavior in Mobile Ad Hoc Networks (MANETs). In particular, it investigated how much route-diversity is inherent in typical ad-hoc networks, and the ability of a globally reactive routing-protocol (such as the Zone Routing Protocol) to capture and utilize(More)
{ The Dual Busy Tone Multiple Access (DBTMA) scheme was designed for decentralized multi-hop networks. In DBTMA, the RTS/CTS dialogue is used to reserve the channel. In addition, two busy tones are employed to eliminate collisions between the RTS/CTS control packets and DATA packet transmissions. DATA packet collisions can seriously decrease channel(More)
This paper describes an experimental implementation of a QoS-aware hybrid routing protocol that uses a flexible mix of proactive and reactive routing techniques within Mobile Ad hoc Networks (MANETs). After a brief review of the benefits and applications of proactive, reactive (on-demand) and hybrid routing, the architectural details and protocol operation(More)
Ad-hoc networks are network architectures that can be rapidly (ideally immediately) deployed and that do not need to rely on pre-existing in.astructure. The salient feature of this breed of networks is that they can operate in dl~erent and differing propagation and network operational conditions, which cannot be predicted during the network design stage. In(More)
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