JaldiMAC

Ben-David, Yahel; Vallentin, Matthias; Fowler, Seth; Brewer, Eric

doi:10.1145/1836001.1836003

Cited by 20 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…18, respectively. If the number of nodes is more than 16, the computing time of traversal search is too large (may reach to 10 10 seconds). So we show only the traversal results under different nodes number from 8 to 16.…”

Section: Simulation and Resultsmentioning

confidence: 99%

Phase Switching Mechanism for WiFi-based Long Distance Networks in Industrial Real-Time Applications

2016

KSII TIIS

View full text Add to dashboard Cite

High-quality industrial control is critical to ensuring production quality, reducing production costs, improving management levels and stabilizing equipment and long-term operations. WiFi-based Long Distance (WiLD) networks have been used as remote industrial control networks. Real-time performance is essential to industrial control. However, the original mechanism of WiLD networks does not minimize end-to-end delay and restricts improvement of real-time performance. In this paper, we propose two algorithms to obtain the transmitting/receiving phase cycle length for each node such that real time constraints can be satisfied and phase switching overhead can be minimized. The first algorithm is based on the branch and bound method, which identifies an optimal solution. The second is a fast heuristic algorithm. The experimental results show that the execution time of the algorithm based on branch and bound is less than that of the heuristic algorithm when the network is complex and that the performance of the heuristic algorithm is close to the optimal solution.

show abstract

Section: Simulation and Resultsmentioning

confidence: 99%

Phase Switching Mechanism for WiFi-based Long Distance Networks in Industrial Real-Time Applications

2016

KSII TIIS

View full text Add to dashboard Cite

show abstract

“…In the literature of WiLD networks, MAC protocols like 2P [3], WiLDNet [4], JazzyMAC [6], JaldiMAC [12], and Lit MAC [13,14] have literally changed the face of WiLD networks. Most of these protocols focus on overall network performance enhancement.…”

Section: Related Workmentioning

confidence: 99%

“…Figure 1 depicts a typical tree topology using which various important concepts involved in the proposed scheme is explained. Most of the existing MAC protocols for such networks use a token-based mechanism to establish a loose synchronization in a part of the network without any concern over the entire network synchronization [3,4,6,12]. The proposed scheme assumes tight node synchronization in the network.…”

Section: Protocol Assumptionsmentioning

confidence: 99%

A QoS-aware dynamic bandwidth allocation scheme for multi-hop WiFi-based long distance networks

Hussain

Ahmed

Saikia

et al. 2015

J Wireless Com Network

View full text Add to dashboard Cite

In this paper, we propose a QoS-aware dynamic bandwidth allocation scheme to mitigate congestion problem in gateway-based multi-hop WiFi-based long distance networks and thereby enhance QoS guarantees for real-time traffic. It presents a dynamic slot scheduling scheme which efficiently distributes the unused TDMA time slots among the needy nodes. The distribution process is carried out in a hierarchical manner through the use of parent-child relationship of a tree topology. By doing so, end-to-end performance of real-time traffic is enhanced manifold. Furthermore, the proposed protocol provides assured packet forwarding for already admitted flows by allowing transmission of nodes according to the capacity of ancestral links. Simulation results show that the proposed protocol achieves a significant performance improvement in terms of throughput and delay of real-time traffic.

show abstract

DirMove: direction of movement based routing in DTN architecture for post-disaster scenario

et al. 2015

View full text Add to dashboard Cite

Network architecture based on opportunistic Delay Tolerant Network (DTN) is best applicable for postdisaster scenarios, where the controlling point of relief work is any fixed point like a local school building or a hospital, whose location is known to everyone. In this work, 4-tier network architecture for post-disaster relief and situation analysis is proposed. The disaster struck area has been divided into clusters known as Shelter Points (SP). The architecture consists of mobile Relief Workers (RW) at tier 1, Throw boxes (TB) at tier 2 placed at fixed locations within SPs. Data Mules (DM) like vehicles, boats, etc. operate at tier 3 that provide inter-SP connectivity. Master Control Station (MCS) is placed at tier 4. The RWs are provided with smart-phones that act as mobile nodes. The mobile nodes collect information from the disaster incident area and send that information to the TB of its SP, using DTN as the communication technology. The messages are then forwarded to the MCS via the DMs. Based on this architecture, a novel DTN routing protocol is proposed. The routing strategy works by tracking recent direction of movement of mobile nodes by measuring their consecutive distances from the destination at two different instants. If any node moves away from the destination, then it is very unlikely to carry its messages towards the destination. For a node, the fittest node among all its neighbours is selected as the next hop. The fittest node is selected using parameters like past history of successful delivery and delivery latency, current direction of movement and node's recent proximity to the destination. Issues related to routing such as fitness of a node for message delivery, buffer management, packet drop and node energy have been considered. The routing protocol has been implemented in the Opportunistic Networks Environment (ONE) simulator with customized mobility models. It is compared with existing standard DTN routing protocols for efficiency. It is found to reduce message delivery latency and improve message delivery ratio by incurring a small overhead .

show abstract

JaldiMAC

Cited by 20 publications

References 9 publications

Phase Switching Mechanism for WiFi-based Long Distance Networks in Industrial Real-Time Applications

Phase Switching Mechanism for WiFi-based Long Distance Networks in Industrial Real-Time Applications

A QoS-aware dynamic bandwidth allocation scheme for multi-hop WiFi-based long distance networks

DirMove: direction of movement based routing in DTN architecture for post-disaster scenario

Contact Info

Product

Resources

About