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Mobile ad hoc networks (MANETs) contain individual nodes exchanging data in a distributed manner. Although each node is capable of determining its own transmission power level, rate adaptation method and routing strategy, few existing routing protocols fully explore the potential performance improvement by the joint optimization of power, rate and routing. This paper proposes and evaluates a cross-layer...
In this paper, we propose and implement a key-value store that supports MPI while allowing application access at any time without having to declaring in the same MPI communication world. This feature may significantly simplify the application design and allow programmers leverage the power of key-value store in an intuitive way. In our preliminary experiment results captured from a supercomputer at...
Since both transmission power and modulation method can be varied in Mobile Ad hoc Networks (MANETs), it is necessary to take power control and rate adaptation into account when dealing with routing problems. In this paper, we propose a Q-Learning-based Rate-aware Power-Controlled Routing scheme (QLRPCR) to address the joint optimization of power, rate and routing in an on-demand and distributed manner...
This paper presents ZHT, a zero-hop distributed hash table, which has been tuned for the requirements of high-end computing systems. ZHT aims to be a building block for future distributed systems, such as parallel and distributed file systems, distributed job management systems, and parallel programming systems. The goals of ZHT are delivering high availability, good fault tolerance, high throughput,...
Frequent changes in topology and link quality in mobile ad-hoc networks (MANETs) present challenging problems in achieving optimal performance. We propose a self-learning routing protocol based on Q-learning that makes use of Quality of Service (QoS) parameters such as Signal to Interference plus Noise Ratio (SINR), delay and throughput, to make routing decisions. At the same time, a Bayesian Network...
The decentralized distributed system characteristics of ad hoc networks bring up some security problems. To ensure the safe, efficient and flexible data transmission in ad hoc networks, this paper presents a trust routing framework based on topology control theory. This framework establishes a trust topology layer independent of routing layer, and the routing procedure executes over the trust topology...
As the distributed multi-domain DWDM optical network has been advocated to be the next generation optical network, there is a pressing need to address the inter-domain RWA (Routing and wavelength assignment) problem. Thus, we propose a set of new inter-domain RWA schemes, including a MLP (Most leisure path) routing strategy based on the Hybrid abstraction and a ID-MU (Inter-domain most used) wavelength...
In this paper, we proposes a multi-gateway nodes data collected routing algorithm based on load balancing(TBLB algorithm) and energy balance, robustness, data forwarding and anti-interference etc, which is multi-gateway nodes-based in wireless sensor network. This algorithm fully takes into account the problem of excessive power consumption when it serves as the data forwarding task, to reduce node...
In order to increase the network capacity and improve the network performance of wireless mesh networks (WMNs), a possible solution is to make the nodes equipped with multiple radios which tuned on multiple non-overlapping channels. Efficient channel assignment is necessary for throughput optimization of mesh nodes. This paper proposed a novel channel assignment algorithm which is very suitable for...
This paper introduces an effective method on improving the signal integrity of the high-speed digital video channels by mitigating the impact of parasitic capacitance introduced by the indispensable ESD protector, which is intentionally compensated by a locally high inductance in high density routing boards without adding any cost at platform level. Both TDR and eye pattern simulation of the concerned...
Trust models studied before evaluated trust degree by the previous interactions of entities in ad hoc networks within a protocol. However, this way is not accurate and difficult to decide the trust value. The basic difficulty lies in the fact that trust information is often fuzzy and incomplete in an open network environment. The performance of mobile ad hoc network also is constrained by residual...
The on-line Vehicle Routing Problem (VRP), motivated by the research concerning on-line Traveling Salesman Problem (TSP) and on-line transportation problem, is studied in this paper. Unlike the TSP, in which the salesman has no capacity limitation, the vehicle in on-line VRP has a limited capacity. In the on-line VRP, when the capacity of the vehicle cannot satisfy the customers' request, it must...
The monitoring system in coal mine has special requirements for data query. Analysis shows that routing in the system should have four features: data-centric routing, supporting query of geographic position, low delay and high reliability of data transmission, robustness of topology. A mobile agent based routing algorithm with mobile sink and a dynamical weight metric which is derived from its current...
Wireless sensor network (WSN) is a novel technology in acquiring and processing information and has been an active research area in recent years. In this paper, firstly, a high reliability routing protocol is designed which is able to rapidly detect the change of topological and routing information of network, choose the best route, recover route when some nodes damaged. Secondly, the basic information...
Wireless sensor network is applied widely in monitoring system of coal mine. An application environment of WSN in coal mine is analyzed to satisfy the data acquirement of mine monitoring. The result of analysis shows that routing protocols applied in coal mine should have four characteristics: data-centric routing mechanism, supporting query of geographic position information, low delay and high reliability...
Due to the special and complicated environment in coal mine, the reliability and energy-efficiency are both the primary issues to be considered during the design of the wireless sensor networks (WSNs) for coal mine. In this paper, we put forward a reliable geographical adaptive fidelity (RGAF) routing protocol, which is based on cluster-unit topology (CUT) for the WSNs in coal mine. RGAF utilizes...
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