Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Queuing network models for delay analysis of multihop wireless ad hoc networks
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Design of a low-cost acoustic modem for moored oceanographic applications
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
On extracting consistent graphs in wireless sensor networks
International Journal of Sensor Networks
Fault tolerant topology control for one-to-all communications in symmetric wireless networks
International Journal of Sensor Networks
Optimal dynamic actuator location in distributed feedback control of a diffusion process
International Journal of Sensor Networks
Decentralised sensor network performance with correlated observations
International Journal of Sensor Networks
ART: an asymmetric and reliable transport mechanism for wireless sensor networks
International Journal of Sensor Networks
Decentralised topology control algorithms for connectivity of distributed wireless sensor networks
International Journal of Sensor Networks
Discrete stochastic approximation algorithms for design of optimal sensor fusion rules
International Journal of Sensor Networks
Sensor coverage in wireless ad hoc sensor networks
International Journal of Sensor Networks
QS-Sift: QoS and spatial correlation-based medium access control in wireless sensor networks
International Journal of Sensor Networks
Wireless sensor networks, an energy-aware and utility-based BDI agent approach
International Journal of Sensor Networks
Fault-tolerant and energy efficient cross-layer design for wireless sensor networks
International Journal of Sensor Networks
A framework for assessing residual energy in wireless sensor network
International Journal of Sensor Networks
Boundary coverage and coverage boundary problems in wireless sensor networks
International Journal of Sensor Networks
Self-healing sensor networks with distributed decision making
International Journal of Sensor Networks
International Journal of Sensor Networks
A flow-based reliability measure for wireless sensor networks
International Journal of Sensor Networks
On constructing low interference topology in multihop wireless sensor networks
International Journal of Sensor Networks
Improving gateway safety in wireless sensor networks using cognitive techniques
International Journal of Sensor Networks
International Journal of Sensor Networks
Mining and visualising wireless sensor network data
International Journal of Sensor Networks
SUMP: a secure unicast messaging protocol for wireless ad hoc sensor networks
International Journal of Sensor Networks
SHORT: shortest hop routing tree for wireless sensor networks
International Journal of Sensor Networks
International Journal of Sensor Networks
A prototype underwater acoustic sensor network platform with topology-aware MAC scheme
International Journal of Sensor Networks
International Journal of Sensor Networks
Stochastic binary sensor networks for noisy environments
International Journal of Sensor Networks
Topology control with Hexagonal Tessellation
International Journal of Sensor Networks
Efficient and robust query processing for mobile wireless sensor networks
International Journal of Sensor Networks
Establishing overlapped multihop clusters in wireless sensor networks
International Journal of Sensor Networks
Distributed Bayesian fault diagnosis of jump Markov systems in wireless sensor networks
International Journal of Sensor Networks
Efficient scheduling techniques for high data-rate wireless personal area networks
International Journal of Sensor Networks
A new approach to service discovery in wireless mobile ad hoc networks
International Journal of Sensor Networks
Target tracking based on a distributed particle filter in underwater sensor networks
Wireless Communications & Mobile Computing - Underwater Sensor Networks: Architectures and Protocols
Wireless Communications & Mobile Computing
THE ALOHA SYSTEM: another alternative for computer communications
AFIPS '70 (Fall) Proceedings of the November 17-19, 1970, fall joint computer conference
Performance analysis of priority schemes for IEEE 802.11 and IEEE 802.11e wireless LANs
IEEE Transactions on Wireless Communications
IEEE 802.11 performance enhancement via concatenation and piggyback mechanisms
IEEE Transactions on Wireless Communications
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Significance-based energy-efficient path selection for multi-source underwater sensor networks
International Journal of Sensor Networks
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The extreme conditions under which multi-hop underwater acoustic sensor networks (UASNs) operate constrain the performance of medium access control (MAC) protocols. The MAC protocol employed significantly impacts the operation of the network supported, and such impacts must be carefully considered when developing protocols for networks constrained by both bandwidth and propagation delay.Time-based coordination, such as TDMA, have limited applicability due to the dynamic nature of the water channel used to propagate the sound signals, as well as the significant effect of relatively small changes in propagation distance on the propagation time. These effects cause inaccurate time synchronization and therefore make time-based access protocols less viable. The large propagation delays also diminish the effectiveness of carrier sense protocols as they do not predict with any certainty the status of the intended recipients at the point when the traffic would arrive. Thus, CSMA protocols do not perform well in UASNs, either.Reservation-based protocols have seldom been successful in commercial products over the past 50 years due to many drawbacks, such as limited scalability, relatively low robustness, etc. In particular, the impact of propagation delays in UASNs and other such constrained networks obfuscate the operation of the reservation protocols and diminish, if not completely negate, the benefit of reservations. The efficacy of the well-known RTS-CTS scheme, as a reservation-based enhancement to the CSMA protocol, is also adversely impacted by long propagation delays.An alternative to these MAC protocols is the much less complex ALOHA protocol, or one of its variants. However, the performance of such protocols within the context of multi-hop networks is not well studied. In this paper we identify the challenges of modeling contention-based MAC protocols and present models for analyzing ALOHA and p-persistent ALOHA variants for a simple string topology. As expected, an application of the model suggests that ALOHA variants are very sensitive to traffic loads. Indeed, when the traffic load is small, utilization becomes insensible to p values. A key finding, though, is the significance of the network size on the protocols' performance, in terms of successful delivery of traffic from outlying nodes, indicating that such protocols are only appropriate for very small networks, as measured by hop count.