An OFDMA-based MAC protocol for under water acoustic wireless sensor networks

Hayajneh, Mohammad; Khalil, Issa; Gadallah, Yasser

doi:10.1145/1582379.1582556

Cited by 20 publications

(11 citation statements)

References 9 publications

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“…Of these factors, time-varying multipath propagation and non-Gaussian noise are the two major factors that limit communication in shallow water [9]. In shallow water, propagation occurs in surface bottom bounces in addition to a possible direct path.…”

Section: Factors Influencing the Design Of Underwater Protocolmentioning

confidence: 99%

“…Moreover, channel characteristics vary with time due to random signal fluctuations. These include surface scattering due to waves, which is the most important contributor to the overall time variability of the shallow water channel [9]. The depth of water is a serious factor impacting UWSN.…”

Section: Factors Influencing the Design Of Underwater Protocolmentioning

confidence: 99%

“…OFDMA Based MAC [16] This protocol exploits the multipath characteristics of a fading acoustic channel It converts the channel into parallel independent acoustic sub-channels that undergo flat fading.…”

Section: A Related Workmentioning

confidence: 99%

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A Survey of Existing Medium Access Control (MAC) for Underwater Wireless Sensor Network (UWSN)

Yunus

Ariffin

Zahedi

2010

2010 Fourth Asia International Conference on Mathematical/Analytical Modelling and Computer Simulation

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Underwater wireless sensor networks (UWSN) consist of a certain number of sensors that interact to send the sensed data to the sink node and perform collaborative task. Most UWSN choose acoustic as a communication medium for wireless transmission. However, electromagnetic waves are also offer a great merit in special underwater environment such as shallow water. UWSN is significantly different from terrestrial sensor networks in many aspects such as mobility of sensor nodes due to water current, propagation delay and propagation loss. These distinctions feature of underwater sensor network pose many new challenges for delivering information from sensor nodes to sink node effectively in UWSN. To achieve reliable data transfer in underwater sensor network scenarios, a new event MAC protocol need to be developed to provide energy efficient and reliable upstream data transfer.

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Section: Factors Influencing the Design Of Underwater Protocolmentioning

confidence: 99%

Section: Factors Influencing the Design Of Underwater Protocolmentioning

confidence: 99%

See 1 more Smart Citation

A Survey of Existing Medium Access Control (MAC) for Underwater Wireless Sensor Network (UWSN)

Yunus

Ariffin

Zahedi

2010

2010 Fourth Asia International Conference on Mathematical/Analytical Modelling and Computer Simulation

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“…In the literature of UWSN MAC protocols, there are three types: CONTENTION-FREE, CONTENTION-BASED, 8 and HYBRID MAC 9,10 protocols. For the first type, there are protocols based on three multiple access techniques such as FDMA, 11 TDMA, [12][13][14] and CDMA. 15,16 The second protocols type are classified into random access and handshaking protocols that have the advantage of using the full bandwidth of the communication channel.…”

Section: Introductionmentioning

confidence: 99%

Signaling game approach to improve the MAC protocol in the underwater wireless sensor networks

Jouhari

Ibrahimi

Tembiné

et al. 2019

Int J Communication

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Summary Underwater sensor networks (UWSNs) are instructed for critical applications like military surveillance and underwater oil spills that conducted in a very massive three‐dimensional (3‐D) space that needs many underwater nodes (UNs) to cover the target area. Those UNs are not easy to recharge and cannot exploit solar power. MAC protocols deployed for UWSN ought to consider the energy efficiency, so as, to extend the network lifetime with total connectivity and significant throughput. Terrestrial MAC protocols could not be used for UWSN due to long and unpredictable propagation delay. Consequently, the development of a new MAC protocol for the harsh environment as underwater is a challenging task. In this study, we focus on the deployment of TDMA in UWSN for this, two schemes entitled TDMA slot sharing (TSS) and free time slots reallocation (FTSR) are proposed. Received data stored in the buffer waiting for processing and forwarding might lead to an unlimited data transfer latency those results in the buffer overflow. Otherwise, free time slots appearing during the communication process resulting from dead nodes increase uselessly sleep time for the rest of the nodes. Both schemes based on signaling game are proposed to overcome those problems, TSS is used to enable the slot sharing between UNs during the communication process to reduce the buffer overflow. FTSR scheme aims to increase the throughput of UNs by allowing the reuse of free time slots. Numerical results conducted in this work show good improvement in the network performance concerning throughput.

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“…Many researchers and practitioners work on identifying cloud threats, vulnerabilities, attacks, and other security and privacy issues, in addition to providing countermeasures in the form of frameworks, strategies, recommendations, and service oriented architectures (e.g., [2,[8][9][10][11][12][13]). Additionally, efforts in other domains such as ad hoc networks have been tuned to address the emerging security problems in the clouds (e.g., [14][15][16][17][18]). Many researchers (e.g., [1,[19][20][21][22][23][24][25]) have addressed single attributes of cloud computing security such as data integrity, authentication vulnerabilities, auditing, etc.…”

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confidence: 99%

Cloud Computing Security: A Survey

2014

Self Cite

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Cloud computing is an emerging technology paradigm that migrates current technological and computing concepts into utility-like solutions similar to electricity and water systems. Clouds bring out a wide range of benefits including configurable computing resources, economic savings, and service flexibility. However, security and privacy concerns are shown to be the primary obstacles to a wide adoption of clouds. The new concepts that clouds introduce, such as multi-tenancy, resource sharing and outsourcing, create new challenges to the security community. Addressing these challenges requires, in addition to the ability to cultivate and tune the security measures developed for traditional computing systems, proposing new security policies, models, and protocols to address the unique cloud security challenges. In this work, we provide a comprehensive study of cloud computing security and privacy concerns. We identify cloud vulnerabilities, classify known security threats and attacks, and present the state-of-the-art practices to control the vulnerabilities, neutralize the threats, and calibrate the attacks. Additionally, we investigate and identify the limitations of the current solutions and provide insights of the future security perspectives. Finally, we provide a cloud security framework in which we present the various lines of defense and identify the dependency levels among them. We identify 28 cloud security threats which we classify into five categories. We also present nine general cloud attacks along with various attack incidents, and provide effectiveness analysis of the proposed countermeasures. OPEN ACCESSComputers 2014, 3 2

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An OFDMA-based MAC protocol for under water acoustic wireless sensor networks

Cited by 20 publications

References 9 publications

A Survey of Existing Medium Access Control (MAC) for Underwater Wireless Sensor Network (UWSN)

A Survey of Existing Medium Access Control (MAC) for Underwater Wireless Sensor Network (UWSN)

Signaling game approach to improve the MAC protocol in the underwater wireless sensor networks

Cloud Computing Security: A Survey

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