Institute of Electrical & Electronic Engineers
Displaying 1-40 of 12020 results
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Practical Source-Network Decoding
When correlated sources are to be communicated over a network to more than one sink, joint source-network coding is, in general, required for information theoretically optimal transmission. Whereas on...
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On Localization of a Non-Cooperative Target with Non-Coherent Binary Detectors
Localization of a non-cooperative target with binary detectors is considered. A general expression for the Fisher information for estimation of target location and power is developed. This general exp...
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A Novel Lowest Density MDS Array Code
Maximum-Distance Separable (MDS) codes are a class of erasure codes that have found extensive applications in storage systems to protect data against disk failures. The MDS property means that these c...
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Symbol and Bit Mapping Optimization for Physical-Layer Network Coding with Pulse Amplitude Modulation
In this paper, the authors consider a two-way relay network in which two users exchange messages through a single relay using a Physical-layer Network Coding (PNC) based protocol. The protocol compris...
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On the Broadcast Latency in Finite Cooperative Wireless Networks
The aim of this paper is to study the effect of cooperation on system delay, quantified as the number of retransmissions required to deliver a broadcast message to all intended receivers. Unlike exist...
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Error Rates of M-PAM and M-QAM in Generalized Fading and Generalized Gaussian Noise Environments
This letter investigates the Average Symbol Error Probability (ASEP) of pulse amplitude modulation and quadrature amplitude modulation coherent signaling over flat fading channels subject to additive ...
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Distributed Inference With M-Ary Quantized Data in the Presence of Byzantine Attacks
The problem of distributed inference with M-ary quantized data at the sensors is investigated in the presence of Byzantine attacks. The authors assume that the attacker does not have knowledge about e...
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Towards Compact and Frequency-Tunable Antenna Solutions for MIMO Transmission with a Single RF Chain
Recently, a technique called beam-space MIMO has been demonstrated as an effective approach for transmitting multiple signals while using a single RF-chain. In this paper, the authors present novel de...
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Dynamic Resource Allocation Using Virtual Machines for Cloud Computing Environment
Cloud computing allows business customers to scale up and down their resource usage based on needs. Many of the touted gains in the cloud model come from resource multiplexing through virtualization t...
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Vector Gaussian Two-Terminal Source Coding
The authors derive a lower bound on each supporting line of the rate region of the vector Gaussian two-terminal CEO problem, which is a special case of the indirect vector Gaussian two-terminal source...
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Gaussian Half-Duplex Relay Networks: Improved Constant Gap and Connections With the Assignment Problem
This paper considers a general Gaussian relay network where a source transmits a message to a destination with the help of N half-duplex relays. It proves that the information theoretic cut-set upper ...
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Network-on-Chip With Long-Range Wireless Links for High-Throughput Scientific Computation
Several emerging application domains in scientific computing demand high computation throughputs to achieve tera-scale or higher performance. Dedicated centers hosting scientific computing tools on a ...
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Lattice Reduction Aided Detection in Large-MIMO Systems
Lattice Reduction (LR) aided detection algorithms are known to achieve the same diversity order as that of Maximum-Likelihood (ML) detection at low complexity. However, they suffer SNR loss compared t...
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Analysis of the Uplink Maximum Achievable Rate with Location Dependent Inter-cell Signal Interference Factors Based on Linear Wyner Model
To enhance spectral efficiency, full frequency reuse has been adopted in advanced cellular communication networks, which however generates severe inter-cell co-channel interference and degrades the ac...
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A Graph Minor Perspective to Multicast Network Coding
Network Coding encourages information coding across a communication network. While the necessity, benefit and complexity of network coding are sensitive to the underlying graph structure of a network,...
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Optimal Training Sequences for Joint Timing Synchronization and Channel Estimation in Distributed Communication Networks
For distributed multi-user and multi-relay cooperative networks, the received signal may be affected by Multiple Timing Offsets (MTOs) and multiple channels that need to be jointly estimated for succe...
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Energy-Optimized Dynamic Deferral of Workload for Capacity Provisioning in Data Centers
In this paper, the authors explores the opportunity for energy cost saving in data centers that utilizes the flexibility from the Service Level Agreements (SLAs) and proposes a novel approach for capa...
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Wide Band Time-Correlated Model for Wireless Communications Under Impulsive Noise Within Power Substation
The installation of wireless technologies in power substations requires characterizing the impulsive noise produced by the high-voltage equipment. Substation impulsive noise might interfere with class...
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On the Capacity Bounds for Poisson Interference Channels
The Poisson interference channel, which models optical communication systems with multiple transceivers, is investigated. Conditions for the strong interference regime are characterized and the corres...
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The Thinnest Path Problem
The authors consider the thinnest path problem in wireless ad hoc networks. For a given source and a destination, the thinnest path problem asks for a path from the source to the destination that resu...
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Coverage and Throughput Analysis With a Non-Uniform Femtocell Deployment
In this paper, the authors propose a non-uniform femtocell network deployment scheme, in which the femtocell Base Stations (BSs) are not utilized in the region within a prescribed distance away from a...
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Delay and Doppler Spreads of Non-Stationary Vehicular Channels for Safety Relevant Scenarios
Vehicular communication channels are characterized by a non-stationary time- and frequency-selective fading process due to rapid changes in the environment. The non-stationary fading process can be ch...
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Amplify-and-Forward Relay Beamforming for Secrecy With Cooperative Jamming and Imperfect CSI
Wireless transmissions are prone to eves-dropping due to their broadcast nature. Providing security through physical layer mechanisms where the intended receiver gets the information reliably while th...
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Packet Monitor Scheme for Prevention of Black-Hole Attack in Mobile Ad-Hoc Network
Mobile Ad hoc NETworks (MANETs) are extensively used in military and civilian applications. The dynamic topology of MANETs allows nodes to join and leave the network at any point of time. This generic...
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Understanding the Adoption of Clusters by SMEs Using Innovation Theory
SMEs-clustering has been of considerable interest over the last decade and is associated with regional development. The Australian government advocates the formation of SMEs cluster thereby encouragin...
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Fine-Grained Feature-Based Social Influence Evaluation in Online Social Networks
The evaluation of a user's social influence is essential for various applications in Online Social Networks (OSNs). The authors propose a fine-grained Feature-Based social Influence (FBI) evaluation m...
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Exploiting Multi-User Diversity and Multi-Hop Diversity in Dual-Hop Broadcast Channels
The authors propose joint user-and-hop scheduling over dual-hop block-fading broadcast channels in order to exploit multi-user diversity gains and multi-hop diversity gains all together. To achieve th...
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Precoding-Based Network Alignment for Three Unicast Sessions
The authors consider the problem of network coding across three unicast sessions over a directed acyclic graph. They consider a SISO scenario, in the sense that each source and receiver is connected t...
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Optimal Relay Selection for Physical-Layer Security in Cooperative Wireless Networks
In this paper, the authors explore the physical-layer security in cooperative wireless networks with multiple relays where both Amplify-and-Forward (AF) and Decode-and-Forward (DF) protocols are consi...
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Towards Differential Query Services in Cost-Efficient Clouds
Cloud computing as an emerging technology trend is expected to reshape the advances in information technology. In a cost-efficient cloud environment, a user can tolerate a certain degree of delay whil...
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Filter Design With Secrecy Constraints: The MIMO Gaussian Wiretap Channel
This paper considers the problem of filter design with secrecy constraints, where two legitimate parties (Alice and Bob) communicate in the presence of an Eavesdropper (Eve), over a Gaussian Multiple-...
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On Achievable Rates for Channels With Mismatched Decoding
The problem of mismatched decoding for discrete memoryless channels is addressed. A mismatched cognitive multiple-access channel is introduced, and an inner bound on its capacity region is derived usi...
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A Security Approach for Data Migration in Cloud Computing
Cloud computing is a new paradigm that combines several computing concepts and technologies of the Internet creating a platform for more agile and cost-effective business applications and IT infrastru...
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Optimal Selective Feedback Policies for Opportunistic Beamforming
This paper studies the structure of downlink sum-rate maximizing selective decentralized feedback policies for opportunistic beamforming under finite feedback constraints on the average number of mobi...
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Sub-Nyquist Radar Via Doppler Focusing
The authors investigate the problem of a monostatic pulse-Doppler radar transceiver trying to detect targets, sparsely populated in the radar's unambiguous time-frequency region. Several past works em...
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A 2.0 Gb/s Throughput Decoder for QC-LDPC Convolutional Codes
In this paper, the authors propose decoder architecture for Low Density Parity-Check Convolutional Code (LDPCCC). Specifically, the LDPCCC is derived from a Quasi-Cyclic (QC) LDPC block code. By makin...
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Lossy Joint Source-Channel Coding in the Finite Blocklength Regime
In the limit of infinite block-lengths, the optimal achievable coding rates in channel coding and lossy data compression are characterized by the channel capacity and the source rate-distortion functi...
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Optimal Cluster Head Selection Schemes for Hierarchical OFDMA Based Video Sensor Networks
In this paper the authors present a novel framework for Cluster Head (CH) selection and sub-carrier allocation towards intra-cluster communication in an Orthogonal Frequency Division Multiple Access (...
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Outage Probability in Arbitrarily-Shaped Finite Wireless Networks
This paper analyzes the outage performance in finite wireless networks. Unlike most prior works, which either assumed a specific network shape or considered a special location of the reference receive...
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Network Coding-Based Link Failure Recovery Over Large Arbitrary Networks
Network coding-based link failure recovery techniques provide near-hitless recovery and offer high capacity efficiency. Diversity coding is the first technique to incorporate coding in this field and ...
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Turbo Trellis-Coded Spatial Modulation
In this paper, a Turbo Trellis-Coded Spatial Modulation (TTCSM) transmission scheme is proposed. In Trellis-Coded Spatial Modulation (TCSM) scheme, the information bits used to select the transmit ant...
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Adaptive Demodulation for Raptor Coded Multilevel Modulation Schemes Over AWGN Channel
Adaptive Modulation and Coding (AMC) and Incremental Redundancy (IR) are two popular rate adaptive systems to improve system capacity, peak data rate and reliable coverage of transmission in wireless ...
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Network Coding-Based ARQ Scheme with Overlapping Selection for Resource Limited Multicast/Broadcast Services
Network coding has recently attracted attention as an efficient technique in multicast/broadcast services. The problem of finding the optimal network coding mechanism maximizing the bandwidth efficien...
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Error Rate Analysis of Subcarrier Intensity Modulation Using Rectangular QAM in Gamma-Gamma Turbulence
Wireless Optical Communication (WOC) system in recent years has become a promising solution for short distance communications due to its optical-fiber-like performance at a fraction of cost of fiber o...
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Constellation Optimization for Coherent Optical Channels Distorted by Nonlinear Phase Noise
The authors consider the design of Amplitude Phase-Shift Keying (APSK) constellations, targeting their application to coherent fiber-optical communications. Phase compensation is used at the receiver ...
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Resource Allocation for Multipoint-to-Multipoint Orthogonal Multicarrier Division Duplexing
Orthogonal Multicarrier Division Duplexing (MDD) is a new duplexing scheme that gains the advantages of both time division duplexing and frequency division duplexing. Resource allocation for Multipoin...
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Optimal Power Allocation and AP Deployment in Green Wireless Cooperative Communications
Recent advances in green energy technologies have boosted the deployment of green wireless communication networks. Unlike traditional energy sources, green energy, e.g., solar, wind, and hydro, etc, i...
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Power Control and Scheduling for Joint Detection Cooperative Cellular Systems
Cooperative joint detection in the uplink of cellular systems is a promising means to combat inter-cell interference. In fact, interference from other users in the same cooperation cluster is turned i...
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Exploring Controllable Deterministic Bits for LDPC Iterative Decoding in WiMAX Networks
Low-Density Parity-Check (LDPC) codes are playing an important role in modern wireless communication systems such as WiMAX due to their Shannon limit approaching error correction performance. To lower...
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Joint NDA Estimation of Carrier Frequency/Phase and SNR for Linearly Modulated Signals
The authors consider the problem of joint Non-Data-Aided (NDA) estimation of carrier frequency and phase offsets, and the signal and noise powers, from the baud-rate samples of a linearly modulated si...
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SNR Estimation for Multilevel Constellations Using Higher-Order Moments
The performance of existing moments-based Non-Data-Aided (NDA) estimators of Signal-to-Noise Ratio (SNR) in digital communication systems substantially degrades with multilevel constellations. The aut...
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High Rate Data Hiding in ACELP Speech Codecs
A new method for hiding digital data in the bit-stream of an ACELP speech codec is proposed in this paper. The key element of the authors' method is an alternative search strategy for the ACELP codebo...
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LOGA: Local Grouping Architecture for Self-Healing Femtocell Networks
Self-healing functionality is developed to allow Self-Organizing Networks (SON) autonomously recover from outage. The dynamic topology and configurations of femtocell access points (femto APs) bring s...
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Energy-Efficient Relaying Over Multiple Slots With Causal CSI
In many communication scenarios, such as in cellular systems, the energy cost is substantial and should be conserved, yet there is a growing need to support many real-time applications that require ti...
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Structure-Based Decoding for Hierarchically Modulated, LDPC Coded Signals
In this paper, the authors present a structured LDPC decoding algorithm for hierarchical QAM modulation systems. Unlike the traditional hierarchical demodulation approaches which suffer from serious I...
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Structure Optimisation of Spatial Modulation Over Correlated Fading Channels
A unique characteristic of Spatial Modulation (SM) is the three dimensional constellation diagram. This enables to trade-off traditional signal constellation diagrams with spatial constellation diagra...
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Optimal Integration Time for Energy-Detection PPM UWB Systems
UWB receivers based on Energy Detection (ED) are often an excellent choice for short-range wireless applications that require low-power and low-complexity architectures. However, this type of receiver...
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Robust Pre-Equalization for Pre-Rake UWB Systems With Spectral Mask Constraints
In this paper, the authors study the effect of channel uncertainty on the performance of pre-equalized pre-rake UWB systems. They consider a bounded uncertainty model and propose a pre-rake design tha...
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Optimal Relocation of Excess Capacity in Optical WDM Backbone Networks
Operational networks get gradually upgraded to avoid capacity exhaustion and create resources to handle traffic growth. These upgrades require installation of new physical resources (e.g., line cards)...
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Measuring and Modeling Energy Consumption to Design a Green NetFPGA Giga-Router
One of the most weighty matter in the Internet today is the waste of energy due to the fact that consumption of network nodes is not tuned with the input traffic. For this reason, the implementation o...
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Joint Decision-Making and Power Allocation for One-Bit Feedback Sensor Communications
The authors consider a sensor communication scenario where a sensor node communicates information to a data sink. To aid the sensor, the data sink transmits Channel State Information (CSI). To obtain ...
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Gaussian Two-Way Relay Channel With Private Information for the Relay
The authors introduce a generalized two-way relay channel where two sources exchange information (not necessarily of the same rate) with help from a relay, and each source additionally sends private i...
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OFDM Modulated Cooperative Multiple-Access Channel With Network-Channel Coding
In this paper, the authors consider the half-duplex Cooperative Multiple-Access Channel (CMAC) with frequency-selective block-fading. Each link employs an Orthogonal Frequency Division Multiplexing (O...
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On the Available Receiver Side Information in Wireless Network Coding
In this paper, the authors analyze how different amount of Receiver Side Information (RSI) available at the receivers of a broadcast channel will affect the overall network throughput. Two transmissio...
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Pilot-Aided Angle-Domain Channel Estimation Techniques for MIMO-OFDM Systems
Early Multiple-Input Multiple-Output with Orthogonal Frequency Division Multiplexing (MIMO-OFDM) channel estimation techniques treat channels as spatially uncorrelated. However, in many situations, MI...
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Identifying Bad Measurements in Compressive Sensing
The authors consider the problem of identifying bad measurements in compressive sensing. These bad measurements can be present due to malicious attacks and system malfunction. Since the system of line...
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Enhanced Bayesian Compressive Sensing for Ultra-Wideband Channel Estimation
This paper addresses the application of the emerging Compressive Sensing (CS) technology to the detection of UltraWideBand (UWB) signals. Capitalizing on the sparseness of random UWB signals in the ba...
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The Correlation Properties of Subchannel Fading for Non-Continuous Carrier Aggregation Based on Indoor Ultra-Wideband Measurement
The new multichannel/multicarrier technologies have drawn great attention recently to support high data rate in mobile multiple-access environments, such as the Carrier Aggregation (CA) as a part of 4...
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On the Nonlinear Teager-Kaiser Operator for Energy Detection Based Impulse Radio UWB Receivers
In this paper, a systematic framework is developed for the first time for theoretically analyzing performance of the nonlinear Teager-Kaiser Operator (TKO) employed in Energy Detection (ED) based Impu...
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Low Complexity Suboptimal Monobit Receiver for Transmitted-Reference Impulse Radio UWB Systems
In this paper, a low complexity suboptimal monobit receiver, denoted as Q-Function Estimation (QFE) based monobit receiver, is proposed for Transmitted-Reference (TR) based Impulse Radio (IR) Ultra Wi...
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Allowing Short-Lived TCP Sessions to Ramp-UP in Broadband Wireless Networks
In this paper, the authors propose a dynamic OFDMA based subcarrier/power allocation which aims to protect the newly established TCP connections. The proposed allocation utilizes an estimation of the ...
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TCP-Aware Resource Allocation in OFDMA Based Wireless Networks
Next generation wireless technologies, such as Long Term Evolution (LTE) and IEEE 802.16e, specify Orthogonal Frequency Division Multiple Access (OFDMA) as their access method. In OFDMA based wireless...
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Potential on Energy Saving in a Modular Base Station
The paper introduces a potential in power consumption savings in a novel modular wireless base station, being the fundamental part of the concept SAfRAN (Scalable Architecture for Resource Adaptable N...
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Expert System Based on Wavelets and DELT Measurements for VDSL Systems
Dual-Ended Line Testing (DELT) is a common capability in most current modems and can be used for Digital Subscriber Line (DSL) qualification and monitoring purposes. In spite of that, this feature rem...
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Towards Reliable Cooperative Communications in Clustered Ad Hoc Networks
Node clustering has been considered as a promising approach in ad hoc networks, where the inter cluster routing is limited to some special nodes called Cluster Head (CH). In practice, the performance ...
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User Cooperation Via Rateless Coding
This paper presents a new rate-less Coded Cooperation (CC) scheme for the two-user Cooperative Multiple Access Channel (CMAC), where two users cooperatively communicate with a common destination. The ...
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Design and Performance Analysis of Distributed Network-Channel Codes for Wireless Sensor Networks
In this paper, the authors analyze the performance of Distributed Network-Channel coding (DNCC) with Multiple Destinations executing a Code Nulling (MDCN) process. By analyzing the formulation deduced...
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Statistical Analysis of COB-Based Location Estimation in Cellular Mobile Radio Systems
Count-Of-Beacon (COB) is a new fundamental radiolocation technique which is resistant to the nonexistence of line-of-sight path. However, the way that cells are populated has a direct impact on its pe...
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Decentralized Energy-Efficient Base Station Operation for Green Cellular Networks
Given the explosive growth of mobile subscribers, network operators have to densely deploy base stations to serve the exponentially increasing access demands. Nevertheless, recent researches have poin...
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Balancing Sum Rate and TCP Throughput in OFDMA Based Wireless Networks
In this paper, the authors propose a dynamic OFDMA based subcarrier/power allocation scheme, which aims to balance the aggregate rate and the achieved TCP throughput of competing TCP flows. The propos...
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