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In this paper, we consider a network where an access point (AP) wirelessly transfers energy to user equipments (UEs) and UEs use the harvested energy to communicate with the AP. Due to different radio propagation losses, the UEs far from the AP harvest little but consume much, thus suffering high transmission delay, while the UEs close to the AP has redundant energy. To reduce the average delay, we...
Information-Centric Networking (ICN) proposals rethink the communication model around named data, in contrast with the host-centric transport view of TCP/IP. The content retrieval in ICN is natively receiver-driven, chunk-level based, multi-path forwarding and intrinsically coupled with in-network caching. To make the best use of in-network caching resources, NDN router should acquire the view of...
Content-Centric Networking (CCN) proposals rethink the communication model around named data. In-network caching and multipath routing are regarded as two fundamental features to distinguish the CCN from the current host-centric IP network. In this paper, we tackle the problem of joint collaborative caching and multipath routing in CCN. We achieve this with an online and offline combination caching...
Due to the development of novel Internet applications, Fault-tolerant needs to be improved and QoS (Quality of Service) routing capability is necessary in the network. Fault-tolerant QoS routing is one of the effective mechanisms to solve this problem. Considering the dynamic characteristic of network, we introduce the knowledge of fuzzy mathematics and probability theory to describe network state...
Due to the unavoidable battery replacement or replenishment, diverse energy harvesting techniques have been integrated with Wireless Sensor Networks (WSNs) to overcome limited battery power and extend the network lifetime. However, variable transmission power levels based on non-uniform energy harvesting rates can incur asymmetric links. In this paper, we propose light-weight forwarding protocols...
With the wide deployment of network facilities and the increasing requirement of network reliability, the disruptive event like natural disaster, power outage or malicious attack has become a non-negligible threat to the current communication network. Such disruptive event can simultaneously destroy all devices in a specific geographical area and affect many network based applications for a long time...
Fault-tolerance needs to be improved and QoS (Quality of Service) routing is necessary in the network, fault-tolerant QoS routing is one of the effective mechanisms. However, due to the dynamic of network parameters, the fuzziness of user requirements, and the imprecise measurements of network parameters, fault-tolerant QoS routing is actually based on the fuzzy information. Therefore, by introducing...
With the development of IC technology, 3 dimensional (3D) architecture (3D IC) has been proposed as a new solution to realize high density and low interconnect delay. Despite of the advance in device performance, 3D IC brings forth many new challenges such as reliability, yield, and so on. Meanwhile, heat dissipation inside a 3D structure becomes more difficult because of the thinner stack, the higher...
Due to the heterogeneity, mobility, instability and other features of NGI (Next Generation Internet), it is difficult to provide users with QoS (Quality of Service). And fault-tolerance needs to be improved in NGI. Thus, an intelligent fault-tolerant QoS unicast routing mechanism based on the outlook algorithm is proposed. The knowledge of fuzzy mathematics and probability theory is introduced to...
As one of the most important restrictions on the application of wireless sensor network, energy consumption is also the main factor which ZigBee specification focuses on. However, current network formation and routing protocols described in ZigBee specification do not fully address power consumption issues. Most of improvements were tested under single network condition so far and the optimization...
According to wireless sensor network (WSN) nodes have unstable performance and are easy to lose effectiveness, a WSN routing failure node verification method, NEVM (Node-Encoding Verification Method), based on node encoding is proposed. The method encodes failure route node with binary encoding and generates more verification path, then sends verification packages to each path and generates a sequence...
ITRI container computer is a modular computer designed to be a building block for constructing cloud-scale data centers. Rather than using a traditional data center network architecture, which is typically based on a combination of Layer 2 switches and Layer 3 routers, ITRI containercomputer's internal interconnection fabric, called Peregrine, is specially architected to meet the scalability, fast...
This paper proposes two lightpath-level active rerouting algorithms, namely, the least resources rerouting algorithm and the load balanced rerouting algorithm, in all-optical WDM networks with alternate routing and traffic grooming. The proposed algorithms consist of three major components to be determined: i) when the rerouting algorithm initiates, ii) which lightpath is rerouted, and iii) which...
This paper introduced the characteristics and applications of wireless sensor networks briefly. With the rapid development of wireless sensor network(WSN) technology, the characteristic of energy limit in WSN has become the utmost concern among people nowadays. According to how to use the limited energy effectively, this paper discuss some typical energy-saving protocols in the MAC layer and in the...
This paper presents an extension of BGP4 based on trust model. Specifically, we first establish a trust model appropriate to evaluate ASes' trust degree toward its neighbors in two ways, direct observations and recommendations; Secondly, the trustworthiness of every AS path advertised is estimated iteratively by utilizing the trust degree of ASes; Finally, the current BGP4 is extended by adding a...
In wireless sensor network, all nodes are energy constrained and designing an energy efficient routing protocol is very important. Clustering routing protocol is a kind of energy efficient routing, while using a virtual backbone to organize the nodes and perform an efficient routing is also a feasible way.
This paper proposes a new dynamic-alternate routing algorithm for all-optical WDM networks without wavelength conversion in order to reduce the connection blocking probability. The main idea in the proposed dynamic-alternate routing algorithm is to try to route the traffics according to a predefined optimal probability distribution. The problem for finding the optimal probability distribution has...
Wireless Sensor networks (WSNs) is a novel technology and hot research field about acquiring and processing information, which gradually gets the focus from the industries and academia in recent years and has a great application future in the military and civil area. WSNs is commonly deployed in harsh and unattended environment,together with the intrinsic limitation of sensor nodes, the entire network...
A virtual channel (VC) calculation algorithm for wormhole-switched on-chip networks is proposed. Traditionally, the virtual channels were allocated uniformly, which results in a waste of area and power. To remedy this situation, based on the queuing theory, we propose a router analytical model. Using this model, the proposed algorithm calculates the bandwidth usage at each router in the network according...
Wireless sensor network is composed of hundreds of sensor nodes involving in limited energy, efficient and low-energy consuming routing algorithm is the crucial problem to the routing design. In this paper, the LEACH protocol, which is a typical clustering routing protocol, has been researched and improved based on energy, the new algorithm is different from the LEACH in the method of determining...
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