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A fault-tolerant routing system is highly needed in autonomous unmanned vehicle (AUxV)-based networks because of the various constraints due to adversarial situations present in the environment of AUxVs. Critical consequences might be resulting even with a minor fault in the system software/hardware in these types of systems due to the involved hazard of their applications such as search and rescue,...
Numerous TOP500 supercomputers are based on a torus interconnection network. The torus topology is effectively one of the most popular interconnection networks for massively parallel systems due to its interesting topological properties such as symmetry and simplicity. For instance, the world-famous supercomputers Fujitsu K, IBM Blue Gene/L, IBM Blue Gene/P and Cray XT3 are all torus-based. In this...
This paper presents an adaptive routing algorithm for 2D mesh network-on-chips (NoCs). The algorithm is based on DyXY routing algorithm. Our proposed routing algorithm is a very low cost fault-tolerance routing method to tolerate at least one faulty link in mesh-based on chip networks. It is a distributed, adaptive, congestion-aware and deadlock-free routing algorithm where only two virtual channels...
An ad hoc network is a group of wireless mobile computers or nodes in which individual nodes cooperate by forwarding packets for each other to allow nodes to communicate beyond direct wireless transmission range. In this paper I presented the design and performance evaluation of a new on demand ad hoc routing protocol, called SWARM. SWARM used mechanisms of swarm intelligence to based select good...
Sensor networks are wireless networks with peculiar properties that require specific attention to be properly managed if their performance and dependability have to be taken care of. In fact, both the usually hard environmental conditions where sensors are deployed and the scarcity of node resources determine overall critical working conditions that dramatically impact on parameters such as reliability,...
High performance, reliability, transient and permanent fault-tolerance, and low energy consumption are major objectives of Networks-on-Chip (NoCs). Since,different applications impose various communication requirements in NoCs, a number of research studies have revealed that the performance advantages of routing schemes are more noticeable on power consumption under different traffic patterns. However,the...
This paper proposes a performance-enhancing fault-tolerant routing algorithm based on f-cube3 as a new solution for increasing the rate of switched and routed packets in NoCs. The f-cube3 algorithm is a wormhole-switched routing for 2-D mesh networks and has been used for block faults such as f-ring and f-chain. We have enhanced the use of virtual channels per each physical link without adding new...
Mobile nodes in some challenging network scenarios suffer from intermittent connectivity and frequent partitions e.g. battlefield and disaster recovery scenarios. Disruption tolerant network (DTN) technologies are designed to enable nodes in such environments to communicate with one another. In an earlier work, we studied information retrieval schemes for single-attribute queries in DTNs. Our schemes...
Due to their reconfigurability and their high density of resources, SRAM-based FPGAs are more and more used in embedded systems. For some applications (Pay-TV,Banking, Telecommunication ...), a high level of security is needed. FPGAs are intrinsically sensitive to ionizing effects, such as light stimulation, and attackers can try to exploit faults injected in the downloaded configuration. Previous...
Wireless mesh network (WMN) has become a popular access network architecture. But because of its multi-hop nature, co-channel interference and contention, the attainable capacity of a wireless node in a WMN is significantly less than the radio capacity. We propose a overlay architecture for a WMN, where a wireless-ring (WRing) is deployed over the regular mesh for carrying wireless mesh traffic only...
In wireless sensor and actor networks (WSANs), a group of sensors and actors are connected by a wireless medium to perform distributed sensing and acting tasks. Sensors usually gather information in an event area and pass it on to actors, which are resource-rich devices that make decisions and perform necessary actions. Therefore, it is vital to maintain connections between sensors and actors for...
According to international technology roadmap for semiconductors (ITRS), before the end of this decade, we will be entering the era of a billion transistors on a single chip. The major threat toward the achievement of billion transistor on a chip is poor scalability of current interconnect infrastructure. With the advent of "network on chip (NoC)" various characters and methodologies of...
The following topics are dealt with: autonomous decentralized systems; service composition; service collaboration; testing and online validation; transportation; sensor and ad hoc networks; assurance and fault-tolerance; agent systems and networking; resource abstraction and management; security, safety, and trust; automotive telematics; multimedia content and service provisioning; context-awareness;...
Network-on-chip (NoC) architectures employing packet-based communication are being increasingly adopted in system-on-chip (SoC) designs. In addition to providing high performance, the fault-tolerance and reliability of these networks is becoming a critical issue due to several artifacts of deep sub-micron technologies. Consequently, it is important for a designer to have access to fast methods for...
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