Information assurance in sensor networks

Deb, Budhaditya; Bhatnagar, Sudeept; Nath, Badri

doi:10.1145/941370.941373

Cited by 59 publications

(38 citation statements)

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“…The number of duplicates is determined from the locally estimated error rate, the hop distance to the sink and the target delivery probability. In [11,12], CSMA and TDMA scheduling technologies are considered to guarantee prescribed end-to-end transmission reliability, respectively. In cross-layer paper [13], Kwon et al maximized the network lifetime in WSNs under the constraint of the target end-to-end transmission success probability by adopting a cross-layer strategy that considers physical layer (i.e., power control), MAC layer (i.e., ARQ control) and network layer (i.e., routing protocol) jointly.…”

Section: Related Workmentioning

confidence: 99%

“…Various network techniques, such as congestion control in transport layer [9], multipath routing in network layer [10], CSMA [11] and TDMA scheduling [12] in MAC layer, power control, routing and ARQ control in the cross-layer method [13], are used to enhance the reliability of wireless transmission.…”

Section: Introductionmentioning

confidence: 99%

“…For reliable data delivery, redundancy and retransmission are two methods that are widely adopted in TDMA MAC protocols [12]. The difference between these two methods lies in whether acknowledgement (ACK) is used when a data packet is correctly received.…”

Section: Introductionmentioning

confidence: 99%

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Optimal replicator factor control in wireless sensor networks

Zheng

Huang

Liang

2011

J. Control Theory Appl.

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For TDMA MAC protocols in wireless sensor networks (WSNs), redundancy and retransmission are two important methods to provide high end-to-end transmission reliability. Since reliable transmissions will lead to more energy consumption, there exists an intrinsic tradeoff between transmission reliability and energy efficiency. For each link, we name the number of its reserved time slots in each MAC superframe as a replicator factor. In the following paper, we propose a reliability-lifetime tradeoff framework (RLTF) for WSNs to study replicator factor control problem. First, for the redundancy TDMA MAC, we formulate replicator factor control problem as convex programming. By the gradient projection method, we develop a fully distributed algorithm to solve the convex programming. Second, for the retransmission TDMA MAC, we set the retransmission upper bound for each link according to the optimal replicator factors under the redundancy MAC and compute the total communication overhead for the retransmission MAC. Finally, we compare the communication overhead of these two MAC protocols under different channel conditions.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimal replicator factor control in wireless sensor networks

Zheng

Huang

Liang

2011

J. Control Theory Appl.

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“…A system-level power-saving strategy is also incorporated into the algorithm. We assume every node in the wireless network is aware of its own geographic position 6 . To make each node know the location or status of neighbors, 'hello' messages are periodically exchanged with neighbors.…”

Section: Definitionmentioning

confidence: 99%

“…We now witness a rush toward wireless sensor networks of several hundreds or thousands of nodes [6,12,14]. The networks are usually characterized by high nodal density, functionally and/or physically duplicated nodes, and infrastructureless architectures.…”

Section: Introductionmentioning

confidence: 99%