R-TDMA: A Dynamic Multiple Access Protocol Using Bandwidth on Demand and Priorities

Linnenbank, G.R.J.; Venkataram, Pallapa; Havinga, Paul J.M.; Mullender, Sape J.; Smit, Gerardus Johannes Maria

doi:10.1007/978-1-4899-0151-4_22

Cited by 2 publications

(2 citation statements)

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“…This general approach reduces collisions while keeping packet throughput high [48]. The difference of 4H is that, instead of fitting packets to fixed-size frames as in [28], the time between each broker's successive broadcasts varies according to the last packet broadcast, as follows.…”

Section: Medium Access Controlmentioning

confidence: 99%

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Demand-driven publish/subscribe in mobile environments

Ouksel

Lundquist

2010

Wireless Netw

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We propose a novel routing protocol, SelfBalancing Supply/Demand (SBSD), for Publish/Subscribe in mobile ad hoc environments. SBSD is a controlled flooding that reduces network congestion by constraining how far subscriptions replicate and how many times nodes broadcast them. SBSD ranks subscriptions by a utility function. This function matches the supply of publications with the recent demand for them; more popular subscriptions are replicated farther and their replicas are retained longer. SBSD is therefore demand-driven, as more popular subscriptions are more likely to receive their matching publications and receive them sooner. We show that SBSD is scalable; routing distance is independent of network size. SBSD's performance is examined under random mobility, under challenging conditions including high node mobility and broadcast failure rates.

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Section: Medium Access Controlmentioning

confidence: 99%

“…Our MAC here is the same extension of R-TDMA [28] used in [29,30] and which was termed 4H. R-TDMA allocates each node an equal share of the broadcast time within its two-hop neighborhood.…”

Section: Medium Access Controlmentioning

confidence: 99%