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- Ad hoc networks (2)
- Ant System (2)
- Communication (2)
- Data Mining (2)
- MIMO (2)
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- Multiple-input multiple-output communications (2)
- Sensor Network (2)
- Spectral Efficiency (2)
- Swarm Intelligence (2)
- Computer communication networks (1)
- Distributed messaging (1)
- Network architecture and design (1)
- Network computing (1)
- Network monitoring (1)
- Performance aggregation (1)
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- Publish/subscribe systems (1)
- Security (1)
- VDCE (1)
- Virtual Distributed Computing Environment (1)
- Wireless communication (1)
Articles 1 - 7 of 7
Full-Text Articles in Computer Engineering
Mimo Communications In Ad Hoc Networks, Biao Chen, Michael J. Gans
Mimo Communications In Ad Hoc Networks, Biao Chen, Michael J. Gans
Electrical Engineering and Computer Science - All Scholarship
We study in this paper the network spectral efficiency in terms of bits/s/Hz of a MIMO (multiple-input multiple output) ad hoc network with K simultaneous communicating transmitter-receiver pairs. Assume that each transmitter is equipped with t antennas and each receiver implements single user detection. We show that in the absence of channel state information (CSI) at the transmitters, the asymptotic network spectral efficiency is limited by r nats/s/Hz as K -> ∞ and is independent of t and the transmit power. With CSI corresponding to the desired receiver available at the transmitter, we demonstrate that the asymptotic spectral efficiency is …
Mimo Communications In Ad Hoc Networks, Biao Chen, Michael J. Gans
Mimo Communications In Ad Hoc Networks, Biao Chen, Michael J. Gans
Electrical Engineering and Computer Science - All Scholarship
We study in this paper the network spectral efficiency in terms of bits/s/Hz of a MIMO (multiple-input multiple output) ad hoc network with K simultaneous communicating transmitter-receiver pairs. Assume that each transmitter is equipped with t antennas and each receiver implements single user detection. We show that in the absence of channel state information (CSI) at the transmitters, the asymptotic network spectral efficiency is limited by r nats/s/Hz as K -> ∞ and is independent of t and the transmit power. With CSI corresponding to the desired receiver available at the transmitter, we demonstrate that the asymptotic spectral efficiency is …
Attack-Resistant Location Estimation In Wireless Sensor Networks, Dongdang Liu, Peng Ning, An Liu, Cliff Wang, Wenliang Kevin Du
Attack-Resistant Location Estimation In Wireless Sensor Networks, Dongdang Liu, Peng Ning, An Liu, Cliff Wang, Wenliang Kevin Du
Electrical Engineering and Computer Science - All Scholarship
Many sensor network applications require sensors’ locations to function correctly. Despite the recent advances, location discovery for sensor networks in hostile environments has been mostly overlooked. Most of the existing localization protocols for sensor networks are vulnerable in hostile environments. The security of location discovery can certainly be enhanced by authentication. However, the possible node compromises and the fact that location determination uses certain physical features (e.g., received signal strength) of radio signals make authentication not as effective as in traditional security applications. This paper presents two methods to tolerate malicious attacks against range-based location discovery in sensor networks. The …
A Predictive Sensor Network Using Ant System, Rajani Muraleedharan, Lisa Ann Osadciw
A Predictive Sensor Network Using Ant System, Rajani Muraleedharan, Lisa Ann Osadciw
Electrical Engineering and Computer Science - All Scholarship
The need for a robust predictive sensor communication network inspired this research. There are many critical issues in a communication network with different data rate requirements, limited power and bandwidth. Energy consumption is one of the key issues in a sensor network as energy dissipation occurs during routing, communication and monitoring of the environment. This paper covers the routing of a sensor communication network by applying an evolutionary algorithm- the ant system. The issues considered include optimal energy, data fusion from different sensor types and predicting changes in environment with respect to time.
A Predictive Sensor Network Using Ant System, Rajani Muraleedharan, Lisa Ann Osadciw
A Predictive Sensor Network Using Ant System, Rajani Muraleedharan, Lisa Ann Osadciw
Electrical Engineering and Computer Science - All Scholarship
The need for a robust predictive sensor communication network inspired this research. There are many critical issues in a communication network with different data rate requirements, limited power and bandwidth. Energy consumption is one of the key issues in a sensor network as energy dissipation occurs during routing, communication and monitoring of the environment. This paper covers the routing of a sensor communication network by applying an evolutionary algorithm- the ant system. The issues considered include optimal energy, data fusion from different sensor types and predicting changes in environment with respect to time.
A Framework For Aggregating Network Performance In Distributed Brokering Systems, Gurhan Gunduz, Shrideep Pallickara, Geoffrey C. Fox
A Framework For Aggregating Network Performance In Distributed Brokering Systems, Gurhan Gunduz, Shrideep Pallickara, Geoffrey C. Fox
Electrical Engineering and Computer Science - All Scholarship
The Internet is presently being used to support increasingly complex interaction models as a result of more and more applications, services and frameworks becoming network-centric. Efficient utilization of network and networked resources is of paramount importance. Network performance gathering is a precursor to any scheme that seeks to provide adaptive routing capabilities for interactions. In this paper we present a network performance aggregation framework that is extensible and appropriate for distributed messaging systems that span multiple realms, disparate communication protocols and support different applications.
A Global Computing Environment For Networked Resources, Haluk Topcuoglu, Salim Hariri
A Global Computing Environment For Networked Resources, Haluk Topcuoglu, Salim Hariri
Electrical Engineering and Computer Science - All Scholarship
Current advances in high-speed networks and WWW technologies have made network computing a cost-effective, high-performance computing alternative. New software tools are being developed to utilize efficiently the network computing environment. Our project, called Virtual Distributed Computing Environment (VDCE), is a high-performance computing environment that allows users to write and evaluate networked applications for different hardware and software configurations using a web interface. In this paper we present the software architecture of VDCE by emphasizing application development and specification, scheduling, and execution/runtime aspects.