Electronic & Electrical Eng (Scholarly Publications): Recent submissions
Now showing items 201-220 of 610
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Learning Nash Equilibria in Distributed Channel Selection for Frequency-Agile Radios
(2012)Wireless communication networks are evolving towards self- configuring, autonomous and distributed multiagent systems in which nodes are deployed randomly and have to adapt to the en- vironment in which they operate. A ... -
An Analysis of Competition among Autonomous Devices in Multichannel Cognitive Radio Networks
(2012)We investigate an autonomous opportunistic spec- trum access (OSA) strategy for a multichannel cognitive radio (CR) network, where two or more autonomous CRs sense the channels sequentially in some sensing order to find ... -
Traffic-Aware Channel Assignment for Multi-Radio Wireless Networks
(2012)This paper studies channel assignment in multi-hop wireless networks in which nodes are equipped with multiple radios, each of which can be assigned to a channel. We argue for an approach that rst assigns channels ... -
Evaluation of Dynamic Channel and Power Assignment for Cognitive Networks
(2011)In this paper, we develop a unifying optimization formulation to describe the Dynamic Channel and Power Assignment (DCPA) problem and an evaluation method for comparing DCPA algorithms. DCPA refers to the allocation of ... -
Spectrum without Bounds, Networks without Borders
(IEEE, 2014)The purpose of this paper is to present a vision for future mobile and wireless networks. The vision, which we call Networks without Borders (NwoB), is based on a market-place of virtual network operators which construct ... -
Ultra-fast 1+1 protection in 10 Gb/s symmetric long reach PON
(IET, 2013)In this paper we evaluate PON protection switching times using our FPGA-based hardware implementation of a Long-Reach PON protocol based on the XGPON standard. We first compare reactivation times of different 1+1 protection ... -
On Software Tools and Stack Architectures for Wireless Network Experiments
(2011)Simulation is still the most widely adopted perfor- mance evaluation technique in mobile ad hoc network research, in spite of a growing number of questions about the fidelity of this technique. Implementation-based ... -
A Method of Proactive MANET Routing Protocol Evaluation Applied to the OLSR Protocol
(2011)Traditional evaluation studies of MANET routing protocols have concentrated on quantitative, traffic-based metrics like throughput and packet loss. These metrics provide a lim- ited evaluation of protocol performance ... -
Fairness and Efficiency Tradeoffs for User Cooperation in Distributed Wireless Networks
(2013)We propose a general framework to analyze incentives for user cooperation, and characterize the tradeoff between fairness and efficiency for cooperative networks. More specifically, we define the incentive region as a ... -
Dynamic Spectrum Scheduling for Carrier Aggregation: A Game Theoretic Approach
(2013)In this paper, we investigate the performance of the dynamic allocation of resources between separate cellular networks. We propose a Dynamic Internetworking Carrier Aggregation (DI-CA) framework which involves every ... -
Complexity of Spectrum Activity and Benefits of Learning for Dynamic Channel Selection
(2013)We explore the question of when learning improves the performance of opportunistic dynamic channel selection by characterizing the primary user (PU) activity using the concept of Lempel-Ziv complexity. We evaluate the ... -
Learning and Reasoning in Cognitive Radio Networks
(2013)Cognitive radio networks challenge the traditional wireless networking paradigm by introducing concepts firmly stemmed into the Artificial Intelligence (AI) field, i.e., learning and reasoning. This fosters optimal resource ... -
Dynamic spectrum access in LTE-advanced networks
(2014)As early as 2014, mobile network operators? spectral capacity will be overwhelmed by the demand brought on by new devices and applications. To augment capacity and meet this demand, operators may choose to deploy a Dynamic ... -
Whitespace Networks Relying on Dynamic Control Channels
(2013)The emergence of whitespace networks, and whitespace communications in general, provides an opportunity to, at least partially, meet the ever-growing demand for mobile data communication. Most of the whitespace network ... -
Vehicular Networks: Embracing Wireless Heterogeneous Communications through Vertical Handover
(2013)By taking advantage of the ever growing deployment of wireless networks, the automotive industry is increasingly enabling vehicles to communicate with one another and with the infrastructure, with benefits to information ... -
Effect of cybotactic clusters on the elastic and flexoelectric properties of bent-core liquid crystals belonging to the same homologous series
(2013)We report results of the splay ( K 11 ) and bend ( K 33 ) elastic constants and the effective flexoelectric coefficient of three bent-core liquid crystals belonging to a homologous series of 4-cyanoresorcinol ... -
Biaxial order parameter in the homologous series of orthogonal bent-core smectic liquid crystals
(2013)The fundamental parameter of the uniaxial liquid crystalline state that governs nearly all of its physical properties is the primary orientational order parameter (S) for the long axes of molecules with respect to the ... -
Superlattice structures observed in the extraordinary phase sequence and analyzed by the phenomenological Landau model and the partially molecular model.
(2013)We draw several electric-field-temperature (E-T) phase diagrams with electric-field-induced birefringence contours in the nOHFBBB1M7 (n=10) and nOTBBB1M7 (n=11) (C11) mixture system by changing the C11 concentration ...
