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Resilience and Oppo...
Resilience and Opportunistic Forwarding: Beyond Average Value Analysis
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- Bjurefors, Fredrik (författare)
- Uppsala universitet,Datorteknik,Communication Research
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Karaliopoulos, Merkourios (författare)
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- Rohner, Christian (författare)
- Uppsala universitet,Datorteknik,Communication Research
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visa fler...
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Smith, Paul (författare)
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Theodoropoulos, George (författare)
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- Gunningberg, Per (författare)
- Uppsala universitet,Datorteknik,Communication Research
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visa färre...
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(creator_code:org_t)
- 2013
- 2013
- Engelska.
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Ingår i: CHANTS '13 Proceedings of the 8th ACM MobiCom workshop on Challenged networks.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Opportunistic networks are systems with highly distributed operation, relying on the altruistic cooperation of heterogeneous, and not always software- and hardware-compatible user nodes. Moreover, the absence of central control makes them vulnerable to malicious attacks. In this paper, we take a fresh look at the resilience of opportunistic forwarding to these challenges. In particular, we introduce and promote the use of metric envelopes as a resilience assessment tool. Metric envelopes depart from the standard practice of average value analysis and explicitly account for the differentiated impact that a challenge may have on the forwarding performance due to node heterogeneity (device capabilities, mobility) and attackers’ intelligence. The use of metric envelopes is demonstrated in the case of three challenges: jamming, hardware/software failures and incompatibilities, and free-riding phenomena. For each challenge, we first devise heuristics to generate worst- and best-case realization scenarios that can approximate the metric envelopes. Then we derive the envelopes of common performance metrics for three popular forwarding protocols under a comprehensive range of mobility patterns. The metric envelope approach enables more informed choices in opportunistic forwarding whenever network resilience considerations become important.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)