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SouthEast SAS Users Group
(23 results)-
Whitepapers
A Slepian-Wolf Coding Based Energy-Efficient Clustering Algorithm for Data Aggregation in Wireless Sensor Networks
May 24, 2012, 12:00am PDT
This paper considers the Slepian-Wolf coding based Energy Minimization Clustering (SWEMC) problem in a Wireless Sensor Network (WSN), which aims to minimize the amount of data generated within...
Provided by SouthEast SAS Users Group
-
Whitepapers
An Optimal Stopping Strategy for Opportunistic Broadcast Channel Access
May 24, 2012, 12:00am PDT
Opportunistic Routing with Network Coding (NCOR) has recently emerged as a promising unicast paradigm in lossy wireless multi-hop networks. By combining the multi-user diversity advantage of the...
Provided by SouthEast SAS Users Group
-
Whitepapers
Delay Quality-of-Service Driven Resource Allocation for Relay-Based Multiuser OFDMA Networks
May 24, 2012, 12:00am PDT
This paper focuses on the delay-QoS driven resource allocation problems for multiuser Orthogonal Frequency Division Multiple Access (OFDMA) relay-based networks. The authors develop an optimal...
Provided by SouthEast SAS Users Group
-
Whitepapers
Achievable Rate Analysis and Feedback Design for Multiuser Relay With Imperfect CSI
May 24, 2012, 12:00am PDT
This paper investigates a multiuser MIMO relay downlink system with imperfect channel estimation and limited feedback. Compared with the system using perfect Channel State Information (CSI), they...
Provided by SouthEast SAS Users Group
-
Whitepapers
Linear MIMO Precoding in Multi-Antenna Wiretap Channels for Finite-Alphabet Data
May 24, 2012, 12:00am PDT
In this paper, the authors investigate the secrecy rate of finite alphabet communications over Multiple-Input, Multiple-Output, Multiple-antenna Eavesdropper (MIMOME) systems. Traditional precoder...
Provided by SouthEast SAS Users Group
-
Whitepapers
A Large System Analysis of Cooperative Multicell Downlink System With Imperfect CSIT
May 24, 2012, 12:00am PDT
In this paper, the authors consider the multi-cell downlink system with multiple Base Stations (BSs) and multiple single antenna users employing the BS cooperation. The channels between BSs and...
Provided by SouthEast SAS Users Group
-
Whitepapers
On Asymptotic Capacity of Coordinated Multi-Point MIMO Channels
May 24, 2012, 12:00am PDT
In this paper, the authors investigate the asymptotic mutual information expression and the capacity-achieving input covariance matrices for the coordinated multi-point Multiple-Input...
Provided by SouthEast SAS Users Group
-
Whitepapers
Bounds and Capacity Results for the Cognitive Z Channel
May 24, 2012, 12:00am PDT
The authors study the discrete memoryless Z channel where the non-broadcasting transmitter is cognitive and knows both messages of the broadcasting transmitter. They call this the cognitive Z...
Provided by SouthEast SAS Users Group
-
Whitepapers
On Linear Precoding of Non-Regenerative MIMO Relays for QAM Inputs
May 24, 2012, 12:00am PDT
Recent works have established that MIMO systems optimized for Gaussian source signals may suffer unexpected performance loss when practical inputs are in fact discrete QAM sources. There is a...
Provided by SouthEast SAS Users Group
-
Whitepapers
An Efficient Network Coding Based Multicast Retransmission Scheme for Mobile Communication Networks With Relays
May 24, 2012, 12:00am PDT
This paper proposes a network coding based retransmission scheme for multicast in a mobile communication network with relay. The proposed retransmission scheme uses Frequency Division (FD) for...
Provided by SouthEast SAS Users Group
-
Whitepapers
Robust Coordinated Downlink Beamforming for Multicell-Cognitive Radio Networks With Probabilistic Constraints
May 24, 2012, 12:00am PDT
In this paper, the authors Design DownLink (DL) beamforming vectors for a multiuser multicell Cognitive Radio (CR) network with imperfect Channel State Information (CSI) at Base Stations (BS)....
Provided by SouthEast SAS Users Group
-
Whitepapers
Underwater Acoustic Channel Estimation Via Complex Homotopy
May 24, 2012, 12:00am PDT
UnderWater Acoustic (UWA) channel is typically sparse. In this paper, a complex Homotopy algorithm is presented and then applied for UWA OFDM channel estimation. Two enhancements that exploit UWA...
Provided by SouthEast SAS Users Group
-
Whitepapers
Carrier Frequency Offset Estimation for Interleaved OFDMA Uplink
May 24, 2012, 12:00am PDT
In this paper, the authors develop a new Carrier Frequency Offset (CFO) estimation scheme for interleaved Orthogonal Frequency Division Multiple Access (OFDMA) transmission. They employ...
Provided by SouthEast SAS Users Group
-
Whitepapers
Efficient Joint Transmit and Receive Optimization for Multiuser MIMO Systems
March 12, 2012, 12:00am PDT
In this paper, the authors develop a novel joint transmit and receive design for MultiUser MIMO (MU-MIMO) systems. The proposed scheme exploits the channel temporal correlation and incorporates...
Provided by SouthEast SAS Users Group
-
Whitepapers
Doubly Selective Channel Estimation for Amplify-and-Forward Relay Networks
March 12, 2012, 12:00am PDT
In this paper, the estimation of doubly selective channel is considered for Amplify-and-Forward (AF) relay networks. The Complex Exponential Basis Expansion Model (CEBEM) is chosen to describe the...
Provided by SouthEast SAS Users Group
-
Whitepapers
Relay Based Cooperative Spectrum Sensing in Distributed Cognitive Radio Networks
March 12, 2012, 12:00am PDT
In Cognitive Radio (CR), spectrum sensing plays a fundamental and critical role. This paper deals with the issue of spectrum sensing in a distributed CR network, and proposes a novel relay based...
Provided by SouthEast SAS Users Group
-
Whitepapers
Robust Tomlinson-Harashima Precoding for Non-Regenerative Multi-Antenna Relaying Systems
March 12, 2012, 12:00am PDT
In this paper, the authors consider the robust transceiver design with Tomlinson-Harashima Precoding (THP) for multihop Amplify-and-Forward (AF) Multiple-Input Multiple-Output (MIMO) relaying...
Provided by SouthEast SAS Users Group
-
Whitepapers
Joint MUD Exploitation and ICI Mitigation Based Scheduling With Limited Base Station Cooperation
June 7, 2012, 12:00am PDT
In this paper, the authors propose a novel opportunistic scheduling algorithm in multi-cell cooperation scenario, i.e., joint Multi-User Diversity (MUD) exploitation and Inter-Cell Interference...
Provided by SouthEast SAS Users Group
-
Whitepapers
Spatial Reuse Strategy in MmWave WPANs With Directional Antennas
November 21, 2012, 12:00am PST
In this paper, the authors propose a spatial reuse strategy for millimeter-Wave (mmWave) Wireless Personal Area Networks (WPANs) with directional antennas. By this strategy, two or more...
Provided by SouthEast SAS Users Group
-
Whitepapers
Segment Training Based Individual Channel Estimation for One-Way Relay Network
November 21, 2012, 12:00am PST
In this paper, the authors design a segment training based individual channel estimation scheme in the classical three-node amplify-and-forward One-Way Relay Network (OWRN). They investigate the...
Provided by SouthEast SAS Users Group
-
Whitepapers
Coordinated Multi-Cell Beamforming Scheme Using Uplink-Downlink Max-Min SINR Duality
November 21, 2012, 12:00am PST
In this paper, a new analytical expression of the max-min SINR duality between the multi-cell downlink and the virtual uplink subject to per-BS power constraints is firstly given. Based on that, a...
Provided by SouthEast SAS Users Group
-
Whitepapers
Performance Enhanced Transmission in Device-to-Device Communications: Beamforming or Interference Cancellation?
November 21, 2012, 12:00am PST
This paper considers Device-To-Device (D2D) communications under-laying cellular networks with a multi-antenna Base Station (BS). The BS serves its own cellular users while letting another remote...
Provided by SouthEast SAS Users Group
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Whitepapers
An Adaptive Clustering Scheme for Mobile Ad-Hoc Networks
June 1, 2012, 12:00am PDT
While Mobile Ad-Hoc NETworks (MANET) has many characteristics that are a challenge to manage, like bandwidth and power constraints, dynamic topology, etc adaptability is a key issue in the...
Provided by SouthEast SAS Users Group
-
Whitepapers
An Adaptive Clustering Scheme for Mobile Ad-Hoc Networks
June 1, 2012, 12:00am PDT
While Mobile Ad-Hoc NETworks (MANET) has many characteristics that are a challenge to manage, like bandwidth and power constraints, dynamic topology, etc adaptability is a key issue in the...
Provided by SouthEast SAS Users Group
-
Whitepapers
Performance Enhanced Transmission in Device-to-Device Communications: Beamforming or Interference Cancellation?
November 21, 2012, 12:00am PST
This paper considers Device-To-Device (D2D) communications under-laying cellular networks with a multi-antenna Base Station (BS). The BS serves its own cellular users while letting another remote...
Provided by SouthEast SAS Users Group
-
Whitepapers
Coordinated Multi-Cell Beamforming Scheme Using Uplink-Downlink Max-Min SINR Duality
November 21, 2012, 12:00am PST
In this paper, a new analytical expression of the max-min SINR duality between the multi-cell downlink and the virtual uplink subject to per-BS power constraints is firstly given. Based on that, a...
Provided by SouthEast SAS Users Group
-
Whitepapers
Segment Training Based Individual Channel Estimation for One-Way Relay Network
November 21, 2012, 12:00am PST
In this paper, the authors design a segment training based individual channel estimation scheme in the classical three-node amplify-and-forward One-Way Relay Network (OWRN). They investigate the...
Provided by SouthEast SAS Users Group
-
Whitepapers
Spatial Reuse Strategy in MmWave WPANs With Directional Antennas
November 21, 2012, 12:00am PST
In this paper, the authors propose a spatial reuse strategy for millimeter-Wave (mmWave) Wireless Personal Area Networks (WPANs) with directional antennas. By this strategy, two or more...
Provided by SouthEast SAS Users Group
-
Whitepapers
Joint MUD Exploitation and ICI Mitigation Based Scheduling With Limited Base Station Cooperation
June 7, 2012, 12:00am PDT
In this paper, the authors propose a novel opportunistic scheduling algorithm in multi-cell cooperation scenario, i.e., joint Multi-User Diversity (MUD) exploitation and Inter-Cell Interference...
Provided by SouthEast SAS Users Group
-
Whitepapers
Robust Tomlinson-Harashima Precoding for Non-Regenerative Multi-Antenna Relaying Systems
March 12, 2012, 12:00am PDT
In this paper, the authors consider the robust transceiver design with Tomlinson-Harashima Precoding (THP) for multihop Amplify-and-Forward (AF) Multiple-Input Multiple-Output (MIMO) relaying...
Provided by SouthEast SAS Users Group
-
Whitepapers
Relay Based Cooperative Spectrum Sensing in Distributed Cognitive Radio Networks
March 12, 2012, 12:00am PDT
In Cognitive Radio (CR), spectrum sensing plays a fundamental and critical role. This paper deals with the issue of spectrum sensing in a distributed CR network, and proposes a novel relay based...
Provided by SouthEast SAS Users Group
-
Whitepapers
Doubly Selective Channel Estimation for Amplify-and-Forward Relay Networks
March 12, 2012, 12:00am PDT
In this paper, the estimation of doubly selective channel is considered for Amplify-and-Forward (AF) relay networks. The Complex Exponential Basis Expansion Model (CEBEM) is chosen to describe the...
Provided by SouthEast SAS Users Group
-
Whitepapers
Efficient Joint Transmit and Receive Optimization for Multiuser MIMO Systems
March 12, 2012, 12:00am PDT
In this paper, the authors develop a novel joint transmit and receive design for MultiUser MIMO (MU-MIMO) systems. The proposed scheme exploits the channel temporal correlation and incorporates...
Provided by SouthEast SAS Users Group
-
Whitepapers
Carrier Frequency Offset Estimation for Interleaved OFDMA Uplink
May 24, 2012, 12:00am PDT
In this paper, the authors develop a new Carrier Frequency Offset (CFO) estimation scheme for interleaved Orthogonal Frequency Division Multiple Access (OFDMA) transmission. They employ...
Provided by SouthEast SAS Users Group
-
Whitepapers
Underwater Acoustic Channel Estimation Via Complex Homotopy
May 24, 2012, 12:00am PDT
UnderWater Acoustic (UWA) channel is typically sparse. In this paper, a complex Homotopy algorithm is presented and then applied for UWA OFDM channel estimation. Two enhancements that exploit UWA...
Provided by SouthEast SAS Users Group
-
Whitepapers
Robust Coordinated Downlink Beamforming for Multicell-Cognitive Radio Networks With Probabilistic Constraints
May 24, 2012, 12:00am PDT
In this paper, the authors Design DownLink (DL) beamforming vectors for a multiuser multicell Cognitive Radio (CR) network with imperfect Channel State Information (CSI) at Base Stations (BS)....
Provided by SouthEast SAS Users Group
-
Whitepapers
An Efficient Network Coding Based Multicast Retransmission Scheme for Mobile Communication Networks With Relays
May 24, 2012, 12:00am PDT
This paper proposes a network coding based retransmission scheme for multicast in a mobile communication network with relay. The proposed retransmission scheme uses Frequency Division (FD) for...
Provided by SouthEast SAS Users Group
-
Whitepapers
On Linear Precoding of Non-Regenerative MIMO Relays for QAM Inputs
May 24, 2012, 12:00am PDT
Recent works have established that MIMO systems optimized for Gaussian source signals may suffer unexpected performance loss when practical inputs are in fact discrete QAM sources. There is a...
Provided by SouthEast SAS Users Group
-
Whitepapers
Bounds and Capacity Results for the Cognitive Z Channel
May 24, 2012, 12:00am PDT
The authors study the discrete memoryless Z channel where the non-broadcasting transmitter is cognitive and knows both messages of the broadcasting transmitter. They call this the cognitive Z...
Provided by SouthEast SAS Users Group
-
Whitepapers
On Asymptotic Capacity of Coordinated Multi-Point MIMO Channels
May 24, 2012, 12:00am PDT
In this paper, the authors investigate the asymptotic mutual information expression and the capacity-achieving input covariance matrices for the coordinated multi-point Multiple-Input...
Provided by SouthEast SAS Users Group
-
Whitepapers
A Large System Analysis of Cooperative Multicell Downlink System With Imperfect CSIT
May 24, 2012, 12:00am PDT
In this paper, the authors consider the multi-cell downlink system with multiple Base Stations (BSs) and multiple single antenna users employing the BS cooperation. The channels between BSs and...
Provided by SouthEast SAS Users Group
-
Whitepapers
Linear MIMO Precoding in Multi-Antenna Wiretap Channels for Finite-Alphabet Data
May 24, 2012, 12:00am PDT
In this paper, the authors investigate the secrecy rate of finite alphabet communications over Multiple-Input, Multiple-Output, Multiple-antenna Eavesdropper (MIMOME) systems. Traditional precoder...
Provided by SouthEast SAS Users Group
-
Whitepapers
Achievable Rate Analysis and Feedback Design for Multiuser Relay With Imperfect CSI
May 24, 2012, 12:00am PDT
This paper investigates a multiuser MIMO relay downlink system with imperfect channel estimation and limited feedback. Compared with the system using perfect Channel State Information (CSI), they...
Provided by SouthEast SAS Users Group
-
Whitepapers
Delay Quality-of-Service Driven Resource Allocation for Relay-Based Multiuser OFDMA Networks
May 24, 2012, 12:00am PDT
This paper focuses on the delay-QoS driven resource allocation problems for multiuser Orthogonal Frequency Division Multiple Access (OFDMA) relay-based networks. The authors develop an optimal...
Provided by SouthEast SAS Users Group
-
Whitepapers
An Optimal Stopping Strategy for Opportunistic Broadcast Channel Access
May 24, 2012, 12:00am PDT
Opportunistic Routing with Network Coding (NCOR) has recently emerged as a promising unicast paradigm in lossy wireless multi-hop networks. By combining the multi-user diversity advantage of the...
Provided by SouthEast SAS Users Group
-
Whitepapers
A Slepian-Wolf Coding Based Energy-Efficient Clustering Algorithm for Data Aggregation in Wireless Sensor Networks
May 24, 2012, 12:00am PDT
This paper considers the Slepian-Wolf coding based Energy Minimization Clustering (SWEMC) problem in a Wireless Sensor Network (WSN), which aims to minimize the amount of data generated within...
Provided by SouthEast SAS Users Group
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