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University of Alaska, Fairbanks
(32 results)-
Whitepapers
A MAC Protocol for Multihop RP-CDMA Ad Hoc Wireless Networks
May 24, 2012, 12:00am PDT
RP-CDMA is a wireless multiple access protocol that utilizes multiple spreading codes and a multiple packet receiver to enhance link reliability and performance. The authors apply RP-CDMA to a...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Power-Efficient Robust Routing and Resource Allocation in Wireless Mesh Networks
May 24, 2012, 12:00am PDT
In this paper, a new robust routing formulation in a Wireless Mesh Network (WMN) is proposed, which enables the routing strategy to be robust to random traffic fluctuation. Together with resource...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Power Bargaining in Multi-Source Relay Networks
May 24, 2012, 12:00am PDT
In this paper, the authors consider a multi-source single-relay wireless network, where the relay facilitates transmissions of the sources' signals to the destination. They study the relay power...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Greedy and Progressive User Scheduling for CoMP Wireless Networks
May 24, 2012, 12:00am PDT
In this paper, the authors propose Progressive User Scheduling (PUS) and distributed Successive Zero-Forcing (SZF) precoding for clustered Coordinated Multi-Point transmission/reception (CoMP)...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Joint Beamforming and Antenna Selection for Two-Way Amplify-and-Forward MIMO Relay Networks
May 24, 2012, 12:00am PDT
A novel joint beamforming and antenna selection strategy is proposed and analyzed for two-way multiple-input multiple-output amplify-and-forward relay networks. Specifically, this strategy selects...
Provided by University of Alaska, Fairbanks
-
Whitepapers
On MMSE Vector-Perturbation Precoding for MIMO Broadcast Channels With Per-Antenna-Group Power Constraints
May 24, 2012, 12:00am PDT
Recently, studies on sub-optimal precoding techniques for Multiple-Input Multiple-Output Broadcast Channels (MIMO-BC), which achieve performance near to that of the Dirty Paper Coding (DPC), have...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Uniform Approximations for Wireless Performance in Fading, Noise and Interference
May 24, 2012, 12:00am PDT
The authors derive simple Uniform Approximations (UAs) for the Bit Error Rate (BER), the Symbol Error Rate (SER), and the outage of wireless digital communication systems impaired by fading,...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Calculating the Distribution of Sums of Log-Gamma Random Variables
May 24, 2012, 12:00am PDT
The problem of determining the distribution of sums of (weighted) log-gamma random variables occurs in spectrum sensing for cognitive radio. An infinite series is derived for the characteristic...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Simulation Analysis of IEEE 802.15.4 Non-Beacon Mode at Varying Data Rates
August 12, 2012, 12:00am PDT
IEEE 802.15.4 standard is designed for low power and low data rate applications with high reliability. It operates in beacon enable and non-beacon enable modes. In this paper, the authors analyze...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Modeling Propagation Characteristics for Arm-Motion in Wireless Body Area Sensor Networks
August 11, 2012, 12:00am PDT
To monitor health information using wireless sensors on body is a promising new application. Human body acts as a transmission channel in wearable wireless devices, so electromagnetic propagation...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Routing Load of Route Calculation and Route Maintenance in Wireless Proactive Routing Protocols
August 11, 2012, 12:00am PDT
This paper presents mathematical framework and study of proactive routing Protocols. The performance analysis of three major proactive routing protocols: Destination-Sequenced Distance Vector...
Provided by University of Alaska, Fairbanks
-
Whitepapers
On Performance Evaluation of Variants of DEEC in WSNs
August 12, 2012, 12:00am PDT
Wireless Sensor Networks (WSNs) contain numerous sensor nodes having limited power resource, which report sensed data to the Base Station (BS) that requires high energy usage. Many routing...
Provided by University of Alaska, Fairbanks
-
Whitepapers
HSEP: Heterogeneity-Aware Hierarchical Stable Election Protocol for WSNs
August 11, 2012, 12:00am PDT
Wireless Sensor Networks (WSNs) are increasing to handle complex situations and functions. In these networks some of the nodes become Cluster Heads (CHs) which are responsible to aggregate data of...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Monitoring and Controlling Power Using Zigbee Communications
August 11, 2012, 12:00am PDT
Smart grid is a modified form of electrical grid where generation, transmission, distribution and customers are not only connected electrically but also through strong communication network with...
Provided by University of Alaska, Fairbanks
-
Whitepapers
A Comprehensive Survey of MAC Protocols for Wireless Body Area Networks
August 11, 2012, 12:00am PDT
In this paper, the authors present a comprehensive study of Medium Access Control (MAC) protocols developed for Wireless Body Area Networks (WBANs). In WBANs, small battery-operated on-body or...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Analytical Survey of Wearable Sensors
August 11, 2012, 12:00am PDT
Wearable sensors in Wireless Body Area Networks (WBANs) provide health and physical activity monitoring. Modern communication systems have extended this monitoring remotely. In this paper, various...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Routing Load of Route Discovery and Route Maintenance in Wireless Reactive Routing Protocols
August 12, 2012, 12:00am PDT
In this paper, the authors present analytical study of routing overhead of reactive routing protocols for Wireless Multihop Networks (WMhNs). To accomplish the framework of generalized routing...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Simulation Analysis of Medium Access Techniques
August 12, 2012, 12:00am PDT
This paper presents comparison of Access Techniques used in Medium Access Control (MAC) protocol for Wireless Body Area Networks (WBANs). Comparison is performed between Time Division Multiple...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Performance Analysis of Hierarchical Routing Protocols in Wireless Sensor Networks
August 12, 2012, 12:00am PDT
This paper focuses on analyzing the optimization strategies of routing protocols with respect to energy utilization of sensor nodes in Wireless Sensor Network (WSNs). Different routing mechanisms...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Optimal Number of Cluster Head Selection for Efficient Distribution of Sources in WSNs
August 12, 2012, 12:00am PDT
In this paper, the authors compare problems of cluster formation and cluster-head selection between different protocols for data aggregation and transmission. They focus on two aspects of the...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Transmission Delay of Multi-Hop Heterogeneous Networks for Medical Applications
August 12, 2012, 12:00am PDT
Now-a-days, with increase in ageing population, Health care market keeps growing. There is a need for monitoring of Health issues. Body Area Network consists of wireless sensors attached on or...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Analyzing Energy-Efficiency and Route-Selection of Multi-Level Hierarchal Routing Protocols in WSNs
August 12, 2012, 12:00am PDT
The advent and development in the field of Wireless Sensor Networks (WSNs) in recent years has seen the growth of extremely small and low-cost sensors that possess sensing, signal processing and...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Power Allocation/Beamforming for DF MIMO Two-Way Relaying: Relay and Network Optimization
November 21, 2012, 12:00am PST
The problem of sum-rate maximization with minimum power consumption is studied for a Decode-and-Forward (DF) Multiple-Input Multiple-Output (MIMO) two-way relaying system consisting of two sources...
Provided by University of Alaska, Fairbanks
-
Whitepapers
An Efficient Distributed Algorithm for Resource Allocation in Large-Scale Coupled Systems
January 17, 2013, 12:00am PST
In modern large-scale systems, fast distributed resource allocation and utility maximization are becoming increasingly important. Traditional solutions to such problems rely on primal/dual...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Hybrid DEEC: Towards Efficient Energy Utilization in Wireless Sensor Networks
March 19, 2013, 12:00am PDT
The clustering algorithm is considered as a kind of key technique used to reduce energy consumption. It can help in increasing the stability period and network life time. Routing protocol for...
Provided by University of Alaska, Fairbanks
-
Whitepapers
EAPESS: An Adaptive Transmission Scheme in Wireless Sensor Networks
March 19, 2013, 12:00am PDT
Reduced energy consumption in sensor nodes is one of the major challenges in Wireless Sensor Networks (WSNs) deployment. In this regard, Error Control Coding (ECC) is one of techniques used for...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Dynamic Power Allocation over Block-Fading Channels with Delay Constraint
October 27, 2009, 12:00am PDT
The problem of allocating power over a non-ergodic Gaussian block fading channel is addressed for delay constrained applications, where transmission takes place over a limited number of time...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Packet Transmission Scheduling Algorithm for Dense Wireless Sensor Networks with Mobile Sink
October 27, 2009, 12:00am PDT
A transmission scheduling algorithm is proposed for Wireless Sensor Networks with high node densities, where a mobile sink is responsible for collecting the information from the sensor nodes with...
Provided by University of Alaska, Fairbanks
-
Whitepapers
An Efficient Key Management Scheme for Live Streaming
October 27, 2009, 12:00am PDT
To protect multimedia content in live streaming applications, it is of critical importance to employ effective access control and key management schemes and to prevent unauthorized access. Many...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Incremental Routing and Scheduling in Wireless Grids
October 27, 2009, 12:00am PDT
In this paper, the authors deal with two fundamental joint routing and scheduling problems in multi-hop Wireless Mesh Networks (WMNs) employing Time Division Multiple Access (TDMA). The problems...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Analysis of Controlled Probabilistic Access with Multipacket Reception
October 18, 2011, 12:00am PDT
Multi-Packet Reception (MPR) capability provides the opportunity to improve bandwidth utilization while reducing complexity of the Medium Access Control layer. Specifically, it has been shown that...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Multiple-Antenna Multiple-Relay Cooperative Communication System with Beamforming
April 15, 2008, 12:00am PDT
In this paper, the authors study the Threshold Decode and Forward (T-DF) fixed relays network with beam forming, which is more reliable than conventional Decode and Forward (DF) relaying....
Provided by University of Alaska, Fairbanks
-
Whitepapers
Multiple-Antenna Multiple-Relay Cooperative Communication System with Beamforming
April 15, 2008, 12:00am PDT
In this paper, the authors study the Threshold Decode and Forward (T-DF) fixed relays network with beam forming, which is more reliable than conventional Decode and Forward (DF) relaying....
Provided by University of Alaska, Fairbanks
-
Whitepapers
Analysis of Controlled Probabilistic Access with Multipacket Reception
October 18, 2011, 12:00am PDT
Multi-Packet Reception (MPR) capability provides the opportunity to improve bandwidth utilization while reducing complexity of the Medium Access Control layer. Specifically, it has been shown that...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Incremental Routing and Scheduling in Wireless Grids
October 27, 2009, 12:00am PDT
In this paper, the authors deal with two fundamental joint routing and scheduling problems in multi-hop Wireless Mesh Networks (WMNs) employing Time Division Multiple Access (TDMA). The problems...
Provided by University of Alaska, Fairbanks
-
Whitepapers
An Efficient Key Management Scheme for Live Streaming
October 27, 2009, 12:00am PDT
To protect multimedia content in live streaming applications, it is of critical importance to employ effective access control and key management schemes and to prevent unauthorized access. Many...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Packet Transmission Scheduling Algorithm for Dense Wireless Sensor Networks with Mobile Sink
October 27, 2009, 12:00am PDT
A transmission scheduling algorithm is proposed for Wireless Sensor Networks with high node densities, where a mobile sink is responsible for collecting the information from the sensor nodes with...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Dynamic Power Allocation over Block-Fading Channels with Delay Constraint
October 27, 2009, 12:00am PDT
The problem of allocating power over a non-ergodic Gaussian block fading channel is addressed for delay constrained applications, where transmission takes place over a limited number of time...
Provided by University of Alaska, Fairbanks
-
Whitepapers
EAPESS: An Adaptive Transmission Scheme in Wireless Sensor Networks
March 19, 2013, 12:00am PDT
Reduced energy consumption in sensor nodes is one of the major challenges in Wireless Sensor Networks (WSNs) deployment. In this regard, Error Control Coding (ECC) is one of techniques used for...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Hybrid DEEC: Towards Efficient Energy Utilization in Wireless Sensor Networks
March 19, 2013, 12:00am PDT
The clustering algorithm is considered as a kind of key technique used to reduce energy consumption. It can help in increasing the stability period and network life time. Routing protocol for...
Provided by University of Alaska, Fairbanks
-
Whitepapers
An Efficient Distributed Algorithm for Resource Allocation in Large-Scale Coupled Systems
January 17, 2013, 12:00am PST
In modern large-scale systems, fast distributed resource allocation and utility maximization are becoming increasingly important. Traditional solutions to such problems rely on primal/dual...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Power Allocation/Beamforming for DF MIMO Two-Way Relaying: Relay and Network Optimization
November 21, 2012, 12:00am PST
The problem of sum-rate maximization with minimum power consumption is studied for a Decode-and-Forward (DF) Multiple-Input Multiple-Output (MIMO) two-way relaying system consisting of two sources...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Analyzing Energy-Efficiency and Route-Selection of Multi-Level Hierarchal Routing Protocols in WSNs
August 12, 2012, 12:00am PDT
The advent and development in the field of Wireless Sensor Networks (WSNs) in recent years has seen the growth of extremely small and low-cost sensors that possess sensing, signal processing and...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Transmission Delay of Multi-Hop Heterogeneous Networks for Medical Applications
August 12, 2012, 12:00am PDT
Now-a-days, with increase in ageing population, Health care market keeps growing. There is a need for monitoring of Health issues. Body Area Network consists of wireless sensors attached on or...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Optimal Number of Cluster Head Selection for Efficient Distribution of Sources in WSNs
August 12, 2012, 12:00am PDT
In this paper, the authors compare problems of cluster formation and cluster-head selection between different protocols for data aggregation and transmission. They focus on two aspects of the...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Performance Analysis of Hierarchical Routing Protocols in Wireless Sensor Networks
August 12, 2012, 12:00am PDT
This paper focuses on analyzing the optimization strategies of routing protocols with respect to energy utilization of sensor nodes in Wireless Sensor Network (WSNs). Different routing mechanisms...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Simulation Analysis of Medium Access Techniques
August 12, 2012, 12:00am PDT
This paper presents comparison of Access Techniques used in Medium Access Control (MAC) protocol for Wireless Body Area Networks (WBANs). Comparison is performed between Time Division Multiple...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Routing Load of Route Discovery and Route Maintenance in Wireless Reactive Routing Protocols
August 12, 2012, 12:00am PDT
In this paper, the authors present analytical study of routing overhead of reactive routing protocols for Wireless Multihop Networks (WMhNs). To accomplish the framework of generalized routing...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Analytical Survey of Wearable Sensors
August 11, 2012, 12:00am PDT
Wearable sensors in Wireless Body Area Networks (WBANs) provide health and physical activity monitoring. Modern communication systems have extended this monitoring remotely. In this paper, various...
Provided by University of Alaska, Fairbanks
-
Whitepapers
A Comprehensive Survey of MAC Protocols for Wireless Body Area Networks
August 11, 2012, 12:00am PDT
In this paper, the authors present a comprehensive study of Medium Access Control (MAC) protocols developed for Wireless Body Area Networks (WBANs). In WBANs, small battery-operated on-body or...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Monitoring and Controlling Power Using Zigbee Communications
August 11, 2012, 12:00am PDT
Smart grid is a modified form of electrical grid where generation, transmission, distribution and customers are not only connected electrically but also through strong communication network with...
Provided by University of Alaska, Fairbanks
-
Whitepapers
HSEP: Heterogeneity-Aware Hierarchical Stable Election Protocol for WSNs
August 11, 2012, 12:00am PDT
Wireless Sensor Networks (WSNs) are increasing to handle complex situations and functions. In these networks some of the nodes become Cluster Heads (CHs) which are responsible to aggregate data of...
Provided by University of Alaska, Fairbanks
-
Whitepapers
On Performance Evaluation of Variants of DEEC in WSNs
August 12, 2012, 12:00am PDT
Wireless Sensor Networks (WSNs) contain numerous sensor nodes having limited power resource, which report sensed data to the Base Station (BS) that requires high energy usage. Many routing...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Routing Load of Route Calculation and Route Maintenance in Wireless Proactive Routing Protocols
August 11, 2012, 12:00am PDT
This paper presents mathematical framework and study of proactive routing Protocols. The performance analysis of three major proactive routing protocols: Destination-Sequenced Distance Vector...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Modeling Propagation Characteristics for Arm-Motion in Wireless Body Area Sensor Networks
August 11, 2012, 12:00am PDT
To monitor health information using wireless sensors on body is a promising new application. Human body acts as a transmission channel in wearable wireless devices, so electromagnetic propagation...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Simulation Analysis of IEEE 802.15.4 Non-Beacon Mode at Varying Data Rates
August 12, 2012, 12:00am PDT
IEEE 802.15.4 standard is designed for low power and low data rate applications with high reliability. It operates in beacon enable and non-beacon enable modes. In this paper, the authors analyze...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Calculating the Distribution of Sums of Log-Gamma Random Variables
May 24, 2012, 12:00am PDT
The problem of determining the distribution of sums of (weighted) log-gamma random variables occurs in spectrum sensing for cognitive radio. An infinite series is derived for the characteristic...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Uniform Approximations for Wireless Performance in Fading, Noise and Interference
May 24, 2012, 12:00am PDT
The authors derive simple Uniform Approximations (UAs) for the Bit Error Rate (BER), the Symbol Error Rate (SER), and the outage of wireless digital communication systems impaired by fading,...
Provided by University of Alaska, Fairbanks
-
Whitepapers
On MMSE Vector-Perturbation Precoding for MIMO Broadcast Channels With Per-Antenna-Group Power Constraints
May 24, 2012, 12:00am PDT
Recently, studies on sub-optimal precoding techniques for Multiple-Input Multiple-Output Broadcast Channels (MIMO-BC), which achieve performance near to that of the Dirty Paper Coding (DPC), have...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Joint Beamforming and Antenna Selection for Two-Way Amplify-and-Forward MIMO Relay Networks
May 24, 2012, 12:00am PDT
A novel joint beamforming and antenna selection strategy is proposed and analyzed for two-way multiple-input multiple-output amplify-and-forward relay networks. Specifically, this strategy selects...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Greedy and Progressive User Scheduling for CoMP Wireless Networks
May 24, 2012, 12:00am PDT
In this paper, the authors propose Progressive User Scheduling (PUS) and distributed Successive Zero-Forcing (SZF) precoding for clustered Coordinated Multi-Point transmission/reception (CoMP)...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Power Bargaining in Multi-Source Relay Networks
May 24, 2012, 12:00am PDT
In this paper, the authors consider a multi-source single-relay wireless network, where the relay facilitates transmissions of the sources' signals to the destination. They study the relay power...
Provided by University of Alaska, Fairbanks
-
Whitepapers
Power-Efficient Robust Routing and Resource Allocation in Wireless Mesh Networks
May 24, 2012, 12:00am PDT
In this paper, a new robust routing formulation in a Wireless Mesh Network (WMN) is proposed, which enables the routing strategy to be robust to random traffic fluctuation. Together with resource...
Provided by University of Alaska, Fairbanks
-
Whitepapers
A MAC Protocol for Multihop RP-CDMA Ad Hoc Wireless Networks
May 24, 2012, 12:00am PDT
RP-CDMA is a wireless multiple access protocol that utilizes multiple spreading codes and a multiple packet receiver to enhance link reliability and performance. The authors apply RP-CDMA to a...
Provided by University of Alaska, Fairbanks
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