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Shanghai Institute of Applied Physics, Chinese Academy of Sciences
(43 results)-
White Papers
Real Time Face Detection Based on Skin Tone Detector
July 1, 2009, 12:00am PDT
Face detection is critical to the application based on human face. Accurate and quick face detection has a determining effect on its following process, like face verification and face recognition...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
SOS: A Safe, Ordered, and Speedy Emergency Navigation Algorithm in Wireless Sensor Networks
August 25, 2011, 12:00am PDT
Wireless sensor networks can play an important role in detecting disasters and navigating the personnel out of dangerous areas. In emergency navigation applications, personal safety and evacuation...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Throughput Analysis With Adjustable Topology Control for Wireless Sensor Network
August 31, 2010, 12:00am PDT
Topology Control algorithm for wireless sensor networks aims to adjust the network topology to improve network performance. Several crucial criteria to evaluate a topology control algorithm...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Flexibly Cooperative Spectrum Sensing and Allocation in Cognitive Radio Networks: Auction-Based Framework and Algorithm Design
November 10, 2011, 12:00am PST
Cognitive radio networks have made a dramatic shift towards variously cooperative paradigm to achieve fast, reliable spectrum sensing and effective spectrum usage in recent past. In this paper,...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Power Allocation Based on Finite-Horizon Optimization for Vehicle-to-Roadside Communications
June 19, 2012, 12:00am PDT
In this paper, the authors study the power allocation strategy in a drive-thru scenario, where an Access Point (AP) is installed along the highway to provide Internet services to vehicles within...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Cross-Layer Scheduling With Secrecy Demands in Delay-Aware OFDMA Network
October 16, 2012, 12:00am PDT
An Orthogonal Frequency Division Multiple Access (OFDMA) downlink system with secure transmissions and delay constraints is investigated, in which a Base Station (BS) transmits both open data with...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
K-Connectivity of Cognitive Radio Networks
May 24, 2012, 12:00am PDT
The k-connectivity of cognitive radio networks is discussed in this paper. By combining asymptotic k-connectivity and percolation, the authors define that the cognitive radio networks are...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Towards a Game Theoretical Modeling of Rational Collaborative Spectrum Sensing in Cognitive Radio Networks
May 24, 2012, 12:00am PDT
Collaborative spectrum sensing has been proposed recently to improve the sensing performance in Cognitive Radio networks. However, cooperative sensing will also introduce extra cost to the...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Optimal Anti-Jamming Strategy in Sensor Networks
May 24, 2012, 12:00am PDT
Wireless sensor networks have been widely applied to various application domains such as environmental monitoring and surveillance. Because of reliance on the open transmission media, a sensor...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Efficient Wireless Sensor Networks Scheduling Scheme: Game Theoretic Analysis and Algorithm
May 24, 2012, 12:00am PDT
Energy efficiency is the core issue in wireless sensor network's scheduling algorithm design, which calls up wide attention from researchers. However, few of the previous works notice the...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Neighbor Discovery Algorithms in Wireless Networks Using Directional Antennas
May 24, 2012, 12:00am PDT
Directional antennas provide great performance improvement for wireless networks, such as increased network capacity and reduced energy consumption. Nonetheless new media access and routing...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Multicast Capacity of Wireless Ad Hoc Networks With Infrastructure Support
May 24, 2012, 12:00am PDT
In this paper, the authors study the multicast capacity of wireless ad hoc networks with infrastructure support. The network under study is termed as hybrid wireless network, where L-Maximum-Hop...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Probability-Based Optimal Coverage of PTZ Camera Networks
May 24, 2012, 12:00am PDT
Distributed camera networks represent an emerging trend for the incorporation of pan-tilt-zoom (PTZ) cameras in next generation large-scale wireless surveillance systems. The adoption of PTZ...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Performance of Multi-Antenna Systems With Fixed Gain AF Relay in the Presence of Co-Channel Interference
May 24, 2012, 12:00am PDT
In this paper, the authors consider a dual-hop Amplify-and-Forward (AF) relay system, where the Base Station (BS) equipped with multiple antennas communicates with the Mobile Station (MS) via a...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
An Optimal Graph Approach for Optimizing OFDMA Relay Networks
May 24, 2012, 12:00am PDT
This paper considers a relay-assisted cooperative network where multiple relays assist the communication of multiple users using Orthogonal Frequency-Division Multiple-Access (OFDMA). The authors'...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
A Distributed Power Control Algorithm in Cognitive Radio Networks Based on Nash Bargaining Solution
May 24, 2012, 12:00am PDT
In the spectrum underlay model, cognitive radios can access the spectrum owned by primary users if they can limit their interference power below a certain threshold, called Interference...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Asymptotic Capacity Analysis in Point-to-Multipoint Cognitive Radio Networks
May 24, 2012, 12:00am PDT
In this paper, the authors analyze the asymptotic capacity in a spectrum sharing system where a Secondary Access Point (SAP) restrictively utilizes the licensed spectrum of an active primary user...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Random Leader: A Distributed-Centralized Spectrum Sharing Scheme in Cognitive Radios
May 24, 2012, 12:00am PDT
In Cognitive Radio (CR) networks, Primary Users (PUs) can share their idle spectrums with Secondary Users (SUs) under certain mechanisms. Centralized schemes and market driven mechanisms are two...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Cross-Layer Resource Allocation of Two-Way Relaying for Statistical Delay-QoS Guarantees
May 24, 2012, 12:00am PDT
In this paper, the authors consider the cross-layer design for delay Quality-of-Service (QoS) provisioning in two-way relay systems. They aim to find the optimal resource allocation policy to...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Outage Performance Analysis of Two-Way Relay System With Multi-Antenna Relay Node
May 24, 2012, 12:00am PDT
This paper presents an analytical study on the outage performance of Amplify-and-Forward (AF) two-way relay system with multi-antenna Relay Node (RN). Two major bidirectional protocols, i.e., two...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Minimizing Mean Packet Delay in EPONs Through Integrated Grant Scheduling
May 24, 2012, 12:00am PDT
In Ethernet Passive Optical Networks (EPONs) with offline Dynamic Bandwidth Allocation (DBA) framework, the Optical Line Terminal (OLT) will first collect bandwidth requests from all Optical...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
A Novel CQI-Assisted Sounding Design for TDD LTE-Advanced System
May 24, 2012, 12:00am PDT
In the Long Term Evolution (LTE) Time Division Duplex (TDD) systems, base stations use uplink Sounding Reference Signals (SRSs) to estimate downlink Channel State Information (CSI) for downlink...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
PMDS: A Probabilistic Misbehavior Detection Scheme in DTN
May 24, 2012, 12:00am PDT
Malicious and selfish behaviors represent a serious threat against routing in Delay or Disruption Tolerant Networks (DTNs). Due to the unique network characteristics, designing a misbehavior...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
History Based Predictive Routing in Multi-Lane Delay Tolerable VANETs
May 24, 2012, 12:00am PDT
In this paper, the authors propose a novel multi-lane model in Delay Tolerant Network (DTN). Different from traditional ad hoc network, DTN allows nodes to forward information in a store-and-carry...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Smart Recommendation by Mining Large-Scale GPS Traces
March 12, 2012, 12:00am PDT
Recommending good driving paths is valuable to taxi drivers for reducing unnecessary waste in fuel and increasing revenue. Driving only according to personal experience may lead to poor...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Sounding Reference Signal Design for TDD LTE-Advanced System
March 12, 2012, 12:00am PDT
In the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) Time Division Duplex (TDD) systems, base stations use uplink Sounding Reference Signals (SRSs) to estimate downlink...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
New Cryptanalysis Paradigm on a Nonce-Based Mutual Authentication Scheme
January 1, 2008, 12:00am PST
In 2005, Lee, Kim, and Yoo proposed a nonce-based mutual authentication scheme using smart cards. However, this paper demonstrates that Lee-Kim-Yoo's scheme is vulnerable to an impersonation...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Degrees of Freedom of MIMO Two-Way X Relay Channel
November 21, 2012, 12:00am PST
Wireless communication has been advancing at an exponential rate, due to the increasing expectations for multimedia services. Among those factors limiting the capacity of wireless networks,...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Expressive Black-Box Traceable Ciphertext-Policy Attribute-Based Encryption
November 28, 2012, 12:00am PST
In a Ciphertext-Policy Attribute-Based Encryption (CP-ABE) system, decryption privileges are defined over attributes that could be shared by multiple users. If some of the users leak their...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Sender Equivocable Encryption Schemes Secure Against Chosen-Ciphertext Attacks Revisited
November 4, 2012, 12:00am PDT
In Eurocrypt 2010, Fehr et al. proposed the first sender equivocable encryption scheme secure against Chosen-Ciphertext Attack (NC-CCA) and proved that NC-CCA security implies security against...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Singleton Spectrum Mobility Games With Incomplete Information
November 21, 2012, 12:00am PST
In Cognitive Radio Networks (CRNs), Secondary Users (SUs) are provided opportunities to access Primary Users' (PUs') idle spectrums but the availability of spectrums is dynamic due to PUs'...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Efficient Spectrum Utilization With Selfish Secondary Users in Cognitive Radio Networks
November 21, 2012, 12:00am PST
In cognitive radio networks, Secondary Users (SUs) are considered as selfish spectrum users, thus how to maximize the spectrum efficiency by these selfish users becomes an endless research topic....
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Scheduling of Connected Autonomous Vehicles on Highway Lanes
November 21, 2012, 12:00am PST
With recent progress in vehicle autonomous driving and vehicular communication technologies, vehicle systems are developing towards fully connected and fully autonomous systems. This paper studies...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Cognitive Transmission Based on Data Priority Classification in WSNs for Smart Grid
November 21, 2012, 12:00am PST
Smart Grid integrates digital processing, sensor technology, automatic control and communication to the traditional power grid to achieve more efficient electricity distribution and management....
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
MMSE Based Greedy Eigenmode Selection for AF MIMO Relay Channels
November 21, 2012, 12:00am PST
In this paper, the authors consider a dual-hop Amplify-and-Forward (AF) Multiple-Input Multiple-Output (MIMO) relay system, where there is one source, one destination and K relay nodes. They...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Precoding Design for Cognitive Two-Way Relay Networks
November 21, 2012, 12:00am PST
The authors study precoding design for Cognitive Two-Way Relay Networks (C-TWRNs). In C-TWRN, the multi-antenna secondary transmitter not only transmits its own signal to the secondary receiver,...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Combinatorial Auction with Time-Frequency Flexibility in Cognitive Radio Networks
January 11, 2012, 12:00am PST
With the ongoing growth of wireless communication services, the demand for radio spectrum increases dramatically. However, the spectrum resource is scarce because of the long-existed rigid license...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
A Distributed-Centralized Scheme for Short-Term and Long-Term Spectrum Sharing with a Random Leader in Cognitive Radio Networks
August 16, 2012, 12:00am PDT
In Cognitive Radio Networks (CRNs), Primary Users (PUs) can share their idle spectra with Secondary Users (SUs) under certain mechanisms. In this paper, the authors propose a...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Enhancement of VoIP Over IEEE 802.11 WLANs by Adapting Transmitting Interval
September 29, 2007, 12:00am PDT
VoIP over Wireless Local Area Network (WLAN) is an important application of WLAN and gaining more and more attention recently. In this paper, the authors analyze the maximum number of VoIP calls...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
WATS: Workload-Aware Task Scheduling in Asymmetric Multi-Core Architectures
November 10, 2011, 12:00am PST
Asymmetric Multi-Core (AMC) architectures have shown high performance as well as power efficiency. However, current parallel programming environments do not perform well on AMC due to their...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Quality-of-Service in Cognitive Radio Networks with Collaborative Sensing
October 27, 2009, 12:00am PDT
Uncertain capacity in newly emerged Cognitive Radio Networks(CRN) renders specific performance analysis for the Secondary Users (SUs), particularly in the aspects of Quality-of-Service (QoS). The...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
On the Efficiency of Inter-Domain State Advertising in Multi-Domain Networks
October 27, 2009, 12:00am PDT
In this paper, the authors study the efficiency of inter-domain state advertising in multi-domain networks, in which the intra-domain topology is substituted with a full-mesh topology of abstract...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
One-Hop Call Admission Control in Heterogeneous Wireless Networks: A Queueing Analysis
October 27, 2009, 12:00am PDT
In a heterogeneous wireless network, where many different wireless networks interwork together, Call Admission Control is an important issue to distribute user traffic among different access...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
WATS: Workload-Aware Task Scheduling in Asymmetric Multi-Core Architectures
November 10, 2011, 12:00am PST
Asymmetric Multi-Core (AMC) architectures have shown high performance as well as power efficiency. However, current parallel programming environments do not perform well on AMC due to their...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Enhancement of VoIP Over IEEE 802.11 WLANs by Adapting Transmitting Interval
September 29, 2007, 12:00am PDT
VoIP over Wireless Local Area Network (WLAN) is an important application of WLAN and gaining more and more attention recently. In this paper, the authors analyze the maximum number of VoIP calls...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
A Distributed-Centralized Scheme for Short-Term and Long-Term Spectrum Sharing with a Random Leader in Cognitive Radio Networks
August 16, 2012, 12:00am PDT
In Cognitive Radio Networks (CRNs), Primary Users (PUs) can share their idle spectra with Secondary Users (SUs) under certain mechanisms. In this paper, the authors propose a...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Combinatorial Auction with Time-Frequency Flexibility in Cognitive Radio Networks
January 11, 2012, 12:00am PST
With the ongoing growth of wireless communication services, the demand for radio spectrum increases dramatically. However, the spectrum resource is scarce because of the long-existed rigid license...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Precoding Design for Cognitive Two-Way Relay Networks
November 21, 2012, 12:00am PST
The authors study precoding design for Cognitive Two-Way Relay Networks (C-TWRNs). In C-TWRN, the multi-antenna secondary transmitter not only transmits its own signal to the secondary receiver,...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
MMSE Based Greedy Eigenmode Selection for AF MIMO Relay Channels
November 21, 2012, 12:00am PST
In this paper, the authors consider a dual-hop Amplify-and-Forward (AF) Multiple-Input Multiple-Output (MIMO) relay system, where there is one source, one destination and K relay nodes. They...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Cognitive Transmission Based on Data Priority Classification in WSNs for Smart Grid
November 21, 2012, 12:00am PST
Smart Grid integrates digital processing, sensor technology, automatic control and communication to the traditional power grid to achieve more efficient electricity distribution and management....
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Scheduling of Connected Autonomous Vehicles on Highway Lanes
November 21, 2012, 12:00am PST
With recent progress in vehicle autonomous driving and vehicular communication technologies, vehicle systems are developing towards fully connected and fully autonomous systems. This paper studies...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Efficient Spectrum Utilization With Selfish Secondary Users in Cognitive Radio Networks
November 21, 2012, 12:00am PST
In cognitive radio networks, Secondary Users (SUs) are considered as selfish spectrum users, thus how to maximize the spectrum efficiency by these selfish users becomes an endless research topic....
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Singleton Spectrum Mobility Games With Incomplete Information
November 21, 2012, 12:00am PST
In Cognitive Radio Networks (CRNs), Secondary Users (SUs) are provided opportunities to access Primary Users' (PUs') idle spectrums but the availability of spectrums is dynamic due to PUs'...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Sender Equivocable Encryption Schemes Secure Against Chosen-Ciphertext Attacks Revisited
November 4, 2012, 12:00am PDT
In Eurocrypt 2010, Fehr et al. proposed the first sender equivocable encryption scheme secure against Chosen-Ciphertext Attack (NC-CCA) and proved that NC-CCA security implies security against...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Expressive Black-Box Traceable Ciphertext-Policy Attribute-Based Encryption
November 28, 2012, 12:00am PST
In a Ciphertext-Policy Attribute-Based Encryption (CP-ABE) system, decryption privileges are defined over attributes that could be shared by multiple users. If some of the users leak their...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Degrees of Freedom of MIMO Two-Way X Relay Channel
November 21, 2012, 12:00am PST
Wireless communication has been advancing at an exponential rate, due to the increasing expectations for multimedia services. Among those factors limiting the capacity of wireless networks,...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
New Cryptanalysis Paradigm on a Nonce-Based Mutual Authentication Scheme
January 1, 2008, 12:00am PST
In 2005, Lee, Kim, and Yoo proposed a nonce-based mutual authentication scheme using smart cards. However, this paper demonstrates that Lee-Kim-Yoo's scheme is vulnerable to an impersonation...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Sounding Reference Signal Design for TDD LTE-Advanced System
March 12, 2012, 12:00am PDT
In the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) Time Division Duplex (TDD) systems, base stations use uplink Sounding Reference Signals (SRSs) to estimate downlink...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Smart Recommendation by Mining Large-Scale GPS Traces
March 12, 2012, 12:00am PDT
Recommending good driving paths is valuable to taxi drivers for reducing unnecessary waste in fuel and increasing revenue. Driving only according to personal experience may lead to poor...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
History Based Predictive Routing in Multi-Lane Delay Tolerable VANETs
May 24, 2012, 12:00am PDT
In this paper, the authors propose a novel multi-lane model in Delay Tolerant Network (DTN). Different from traditional ad hoc network, DTN allows nodes to forward information in a store-and-carry...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
PMDS: A Probabilistic Misbehavior Detection Scheme in DTN
May 24, 2012, 12:00am PDT
Malicious and selfish behaviors represent a serious threat against routing in Delay or Disruption Tolerant Networks (DTNs). Due to the unique network characteristics, designing a misbehavior...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
A Novel CQI-Assisted Sounding Design for TDD LTE-Advanced System
May 24, 2012, 12:00am PDT
In the Long Term Evolution (LTE) Time Division Duplex (TDD) systems, base stations use uplink Sounding Reference Signals (SRSs) to estimate downlink Channel State Information (CSI) for downlink...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Minimizing Mean Packet Delay in EPONs Through Integrated Grant Scheduling
May 24, 2012, 12:00am PDT
In Ethernet Passive Optical Networks (EPONs) with offline Dynamic Bandwidth Allocation (DBA) framework, the Optical Line Terminal (OLT) will first collect bandwidth requests from all Optical...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Outage Performance Analysis of Two-Way Relay System With Multi-Antenna Relay Node
May 24, 2012, 12:00am PDT
This paper presents an analytical study on the outage performance of Amplify-and-Forward (AF) two-way relay system with multi-antenna Relay Node (RN). Two major bidirectional protocols, i.e., two...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Cross-Layer Resource Allocation of Two-Way Relaying for Statistical Delay-QoS Guarantees
May 24, 2012, 12:00am PDT
In this paper, the authors consider the cross-layer design for delay Quality-of-Service (QoS) provisioning in two-way relay systems. They aim to find the optimal resource allocation policy to...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Random Leader: A Distributed-Centralized Spectrum Sharing Scheme in Cognitive Radios
May 24, 2012, 12:00am PDT
In Cognitive Radio (CR) networks, Primary Users (PUs) can share their idle spectrums with Secondary Users (SUs) under certain mechanisms. Centralized schemes and market driven mechanisms are two...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Asymptotic Capacity Analysis in Point-to-Multipoint Cognitive Radio Networks
May 24, 2012, 12:00am PDT
In this paper, the authors analyze the asymptotic capacity in a spectrum sharing system where a Secondary Access Point (SAP) restrictively utilizes the licensed spectrum of an active primary user...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
A Distributed Power Control Algorithm in Cognitive Radio Networks Based on Nash Bargaining Solution
May 24, 2012, 12:00am PDT
In the spectrum underlay model, cognitive radios can access the spectrum owned by primary users if they can limit their interference power below a certain threshold, called Interference...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
An Optimal Graph Approach for Optimizing OFDMA Relay Networks
May 24, 2012, 12:00am PDT
This paper considers a relay-assisted cooperative network where multiple relays assist the communication of multiple users using Orthogonal Frequency-Division Multiple-Access (OFDMA). The authors'...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Performance of Multi-Antenna Systems With Fixed Gain AF Relay in the Presence of Co-Channel Interference
May 24, 2012, 12:00am PDT
In this paper, the authors consider a dual-hop Amplify-and-Forward (AF) relay system, where the Base Station (BS) equipped with multiple antennas communicates with the Mobile Station (MS) via a...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Probability-Based Optimal Coverage of PTZ Camera Networks
May 24, 2012, 12:00am PDT
Distributed camera networks represent an emerging trend for the incorporation of pan-tilt-zoom (PTZ) cameras in next generation large-scale wireless surveillance systems. The adoption of PTZ...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Multicast Capacity of Wireless Ad Hoc Networks With Infrastructure Support
May 24, 2012, 12:00am PDT
In this paper, the authors study the multicast capacity of wireless ad hoc networks with infrastructure support. The network under study is termed as hybrid wireless network, where L-Maximum-Hop...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Neighbor Discovery Algorithms in Wireless Networks Using Directional Antennas
May 24, 2012, 12:00am PDT
Directional antennas provide great performance improvement for wireless networks, such as increased network capacity and reduced energy consumption. Nonetheless new media access and routing...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Efficient Wireless Sensor Networks Scheduling Scheme: Game Theoretic Analysis and Algorithm
May 24, 2012, 12:00am PDT
Energy efficiency is the core issue in wireless sensor network's scheduling algorithm design, which calls up wide attention from researchers. However, few of the previous works notice the...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Optimal Anti-Jamming Strategy in Sensor Networks
May 24, 2012, 12:00am PDT
Wireless sensor networks have been widely applied to various application domains such as environmental monitoring and surveillance. Because of reliance on the open transmission media, a sensor...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Towards a Game Theoretical Modeling of Rational Collaborative Spectrum Sensing in Cognitive Radio Networks
May 24, 2012, 12:00am PDT
Collaborative spectrum sensing has been proposed recently to improve the sensing performance in Cognitive Radio networks. However, cooperative sensing will also introduce extra cost to the...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
K-Connectivity of Cognitive Radio Networks
May 24, 2012, 12:00am PDT
The k-connectivity of cognitive radio networks is discussed in this paper. By combining asymptotic k-connectivity and percolation, the authors define that the cognitive radio networks are...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Cross-Layer Scheduling With Secrecy Demands in Delay-Aware OFDMA Network
October 16, 2012, 12:00am PDT
An Orthogonal Frequency Division Multiple Access (OFDMA) downlink system with secure transmissions and delay constraints is investigated, in which a Base Station (BS) transmits both open data with...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Power Allocation Based on Finite-Horizon Optimization for Vehicle-to-Roadside Communications
June 19, 2012, 12:00am PDT
In this paper, the authors study the power allocation strategy in a drive-thru scenario, where an Access Point (AP) is installed along the highway to provide Internet services to vehicles within...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Flexibly Cooperative Spectrum Sensing and Allocation in Cognitive Radio Networks: Auction-Based Framework and Algorithm Design
November 10, 2011, 12:00am PST
Cognitive radio networks have made a dramatic shift towards variously cooperative paradigm to achieve fast, reliable spectrum sensing and effective spectrum usage in recent past. In this paper,...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
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