Huawei Technologies

Displaying 1-23 of 23 results

  • White Papers // Dec 2012

    Data Envelopment Analysis: Efficient Technique for Measuring Performance of Wireless Network Coding Protocols

    Performance of network coding protocols have been largely evaluated using metrics such as packet delivery ratio and routing load, which can only determined how effective a protocol is. The authors describe the process of routing information in wireless network based on network coding and evaluate the efficiency of throughput benefits...

    Provided By Huawei Technologies

  • White Papers // Nov 2012

    A Same-Frequency Cellular Repeater Using Adaptive Feedback Cancellation

    A same-frequency cellular repeater is proposed that uses adaptive signal processing to cancel the feedback path, thereby allowing high gain while maintaining stability. This technique has application wherever it is desired to boost signal strength in outlying areas of cell coverage, particularly inside homes and buildings. It is intended to...

    Provided By Huawei Technologies

  • White Papers // Nov 2012

    Energy Efficiency and Deployment Efficiency Tradeoff for Heterogeneous Wireless Networks

    To meet the global challenge of reducing greenhouse gas emissions and the explosion demand of wireless data traffic, green architecture design is becoming a critical issue for mobile network operators. Heterogeneous deployments of different cell types have been used to fulfill the challenges mentioned above. In this respect, a critical...

    Provided By Huawei Technologies

  • White Papers // Sep 2012

    Cost Evaluation for Flexible-Grid Optical Networks

    The Internet traffic demand has grown at a rate of approximately 45% per annum during the previous years and, according to a forecast from Cisco, a similar tendency can be expected for the near future: "Globally, Internet traffic will grow 3.8-fold from 2011 to 2016, a compound annual growth rate...

    Provided By Huawei Technologies

  • White Papers // May 2012

    A Multimedia Service Migration Protocol for Single User Multiple Devices

    This paper describes a new protocol SMP, which supports multimedia transfer for single-user, multiple-device scenarios. Through its novel naming and control/data plane designs, SMP is able to retain the current client and server protocol operations while placing new functions at the proxy. The authors' initial evaluation has confirmed its viability....

    Provided By Huawei Technologies

  • White Papers // May 2012

    Delay-Power Tradeoff of Max Queue-Weighted (MWQ) Power Control for Wireless Systems With Limited Renewable Energy Storage

    In this paper, the authors analyze the fundamental power-delay tradeoff in point-to-point wireless communication systems with renewable energy source. They consider the Max Queue-Weighted (MWQ) algorithm, where the transmitter determines the rate and power control actions based on the instantaneous Channel State Information (CSI), the Data Queue State Information (DQSI)...

    Provided By Huawei Technologies

  • White Papers // May 2012

    TCP-Mobile Edge: Accelerating Delivery in Mobile Networks

    Owing to the imminent fixed mobile convergence, Internet applications are frequently accessed through mobile nodes. However, service delivery latency is too high to satisfy user expectations. In this paper, the authors design a new TCP algorithm, TCPME (Mobile Edge), to accelerate the service delivery in mobile networks. Considering the QoS...

    Provided By Huawei Technologies

  • White Papers // Feb 2012

    Cooperative Relay Design for Energy Efficient Cell Capacity Improvements

    The effect of relaying in terms of energy efficiency is an important and interesting issue in cellular communications. In this paper, two relaying schemes for uplink are analyzed and compared in the context of cellular systems: Simple Relaying (SR), where a user is served either by a relay node or...

    Provided By Huawei Technologies

  • White Papers // Feb 2012

    Antenna Selection Schemes for Energy Efficiency in Distributed Antenna Systems

    In this paper two schemes of distributed antenna selection, Path-loss-based Antenna Selection (P-AS) and Energy-efficient Antenna Selection (E-AS), are studied for the purpose of improving energy efficiency in Distributed Antenna Systems (DAS). Path loss information is exploited in P-AS, whilst the energy consumption of antenna nodes is taken into account...

    Provided By Huawei Technologies

  • White Papers // Mar 2011

    Intercloud Exchanges and Roots Topology and Trust Blueprint

    Cloud computing is a new design pattern for large, distributed datacenters. Initially, Service providers offering included cloud enabled productivity applications such as search, email, and social networks. Recently they have expanded their offerings to include compute-related capabilities such as virtual machines, storage, and complete operating system services. The cloud computing...

    Provided By Huawei Technologies

  • White Papers // Jul 2010

    Using Semantic Web Ontology for Intercloud Directories and Exchanges

    The concept of a cloud operated by one service provider or enterprise interoperating with a clouds operated by another is a powerful idea. So far that is limited to use cases where code running on one cloud explicitly references a service on another cloud. There is no implicit and transparent...

    Provided By Huawei Technologies

  • White Papers // Jun 2010

    Using XMPP as a Transport in Intercloud Protocols

    Cloud Computing is a term applied to large, hosted datacenters, usually geographically distributed, which offer various computational services on a "Utility" basis. Most typically the configuration and provisioning of these datacenters, as far as the services for the subscribers go, is highly automated, to the point of the service being...

    Provided By Huawei Technologies

  • White Papers // May 2010

    Pricing for QoS-Based Wireless Data Services and Its Impact on Radio Resource Management

    The use of cellular networks for both voice and data communications is growing at a rapid pace throughout the world. Such growth was initially fueled by the need for mobile voice communication. However, with the advent of 2G networks and now with 3G networks, data services are quickly outpacing that...

    Provided By Huawei Technologies

  • White Papers // Mar 2010

    Intercloud Directory and Exchange Protocol Detail Using XMPP and RDF

    Working groups have proposed building a layered set of protocols to solve the Cloud Computing interoperability challenge called "Intercloud Protocols". Instead of each cloud provider establishing connectivity with another cloud provider in a Point-to-Point manner resulting in the n2 complexity problem, Intercloud Directories and Exchanges will act as mediators for...

    Provided By Huawei Technologies

  • White Papers // Nov 2009

    Optimal Initiation Based Vertical Handover for UMTS-802.11 WLAN Overlay Networks

    The next generation of wireless communications will be based on a heterogeneous infrastructure consisting different wireless and wired access systems where users will enjoy fast and seamless mobility and "Anytime - anywhere" access to applications with least interruption and disruption of wireless connectivity .In this context, a strong need has...

    Provided By Huawei Technologies

  • White Papers // Aug 2009

    Interference Coordination Through Network-Synchronized Cyclic Beamforming

    The next generation of wireless networks will use multiple techniques to improve channel spectral efficiencies. In this paper, the authors focus on one such technique, beamforming, in the downlink channel. In each sector, a number of fixed beams are used to serve UEs (User Equipment). For each subband in each...

    Provided By Huawei Technologies

  • White Papers // Aug 2009

    System Capacity of a Two-Sector OFDMA Downlink With QoS Constraints

    The authors consider the downlink of an Orthogonal Frequency Division Multiple Access (OFDMA) network. OFDMA transmission technology will be used in the next generation of wireless networks such as the LTE (Long Term Evolution) and WiMAX wireless standards. In such a channel, multiple User Equipments (UE) may each be allocated...

    Provided By Huawei Technologies

  • White Papers // Jun 2009

    Joint Subcarrier-Relay Assignment and Power Allocation for Decode-and-Forward Multi-Relay OFDM Systems

    Joint power allocation, relay selection, and subcarrier assignment are critical and challenging for achieving full benefits of OFDM based cooperative relay networks. In this paper, the authors study such a problem in a dual-hop multi-relay OFDM system with an objective of maximizing the spectral efficiency under a total power constraint....

    Provided By Huawei Technologies

  • White Papers // Mar 2009

    On the Performance of Downlink Beamforming With Synchronized Beam Cycles

    The next generation of wireless networks (e.g.,) will use multiple techniques to improve channel spectral efficiencies. In this paper, the authors focus on one such technique, beamforming, in the downlink channel. In each sector, a number of fixed beams are used to serve UEs (User Equipment). For each frame, the...

    Provided By Huawei Technologies

  • White Papers // Feb 2009

    Resource Allocation for the LTE Physical Downlink Control Channel

    The next generation of wireless networks will simultaneously support many data and voice users. These users or UEs (User Equipment) will share the uplink and downlink radio resources and so, in each frame, the basestation must signal which UEs are being allocated resources and the location within the frame of...

    Provided By Huawei Technologies

  • White Papers // Dec 2008

    IPTV, Towards Seamless Infotainment

    IPTV, enabled by aggregating new technologies in computing, networking, and storage, provides a new information access and entertainment platform in the world of digital evolution. From this perspective where information and entertainment are part of each other, the authors write this paper to address the issues of IPTV towards seamless...

    Provided By Huawei Technologies

  • White Papers // Oct 2008

    Cooperative Scheduling of Downlink Beam Transmissions in a Cellular Network

    The next generation of wireless networks (e.g.,) will use multiple techniques to improve channel spectral efficiencies. In this paper, the authors focus on one such technique, beamforming, in the downlink channel. In each sector a number of fixed beams are used to serve users. For each frame the scheduler chooses...

    Provided By Huawei Technologies

  • White Papers // Aug 2008

    Broadcasting VBR Traffic in a WiMAX Network

    The next generation of wireless networks (LTE, WiMAX and UMB) will have sufficient capacity to support video broadcasts in addition to unicast services such as voice and data. Since, broadcast services are resource intensive, radio resources must be carefully managed to ensure proper operation of the unicast services. One approach...

    Provided By Huawei Technologies

  • White Papers // May 2012

    A Multimedia Service Migration Protocol for Single User Multiple Devices

    This paper describes a new protocol SMP, which supports multimedia transfer for single-user, multiple-device scenarios. Through its novel naming and control/data plane designs, SMP is able to retain the current client and server protocol operations while placing new functions at the proxy. The authors' initial evaluation has confirmed its viability....

    Provided By Huawei Technologies

  • White Papers // May 2012

    Delay-Power Tradeoff of Max Queue-Weighted (MWQ) Power Control for Wireless Systems With Limited Renewable Energy Storage

    In this paper, the authors analyze the fundamental power-delay tradeoff in point-to-point wireless communication systems with renewable energy source. They consider the Max Queue-Weighted (MWQ) algorithm, where the transmitter determines the rate and power control actions based on the instantaneous Channel State Information (CSI), the Data Queue State Information (DQSI)...

    Provided By Huawei Technologies

  • White Papers // May 2012

    TCP-Mobile Edge: Accelerating Delivery in Mobile Networks

    Owing to the imminent fixed mobile convergence, Internet applications are frequently accessed through mobile nodes. However, service delivery latency is too high to satisfy user expectations. In this paper, the authors design a new TCP algorithm, TCPME (Mobile Edge), to accelerate the service delivery in mobile networks. Considering the QoS...

    Provided By Huawei Technologies

  • White Papers // Feb 2012

    Cooperative Relay Design for Energy Efficient Cell Capacity Improvements

    The effect of relaying in terms of energy efficiency is an important and interesting issue in cellular communications. In this paper, two relaying schemes for uplink are analyzed and compared in the context of cellular systems: Simple Relaying (SR), where a user is served either by a relay node or...

    Provided By Huawei Technologies

  • White Papers // Feb 2012

    Antenna Selection Schemes for Energy Efficiency in Distributed Antenna Systems

    In this paper two schemes of distributed antenna selection, Path-loss-based Antenna Selection (P-AS) and Energy-efficient Antenna Selection (E-AS), are studied for the purpose of improving energy efficiency in Distributed Antenna Systems (DAS). Path loss information is exploited in P-AS, whilst the energy consumption of antenna nodes is taken into account...

    Provided By Huawei Technologies

  • White Papers // Sep 2012

    Cost Evaluation for Flexible-Grid Optical Networks

    The Internet traffic demand has grown at a rate of approximately 45% per annum during the previous years and, according to a forecast from Cisco, a similar tendency can be expected for the near future: "Globally, Internet traffic will grow 3.8-fold from 2011 to 2016, a compound annual growth rate...

    Provided By Huawei Technologies

  • White Papers // Nov 2012

    A Same-Frequency Cellular Repeater Using Adaptive Feedback Cancellation

    A same-frequency cellular repeater is proposed that uses adaptive signal processing to cancel the feedback path, thereby allowing high gain while maintaining stability. This technique has application wherever it is desired to boost signal strength in outlying areas of cell coverage, particularly inside homes and buildings. It is intended to...

    Provided By Huawei Technologies

  • White Papers // Dec 2012

    Data Envelopment Analysis: Efficient Technique for Measuring Performance of Wireless Network Coding Protocols

    Performance of network coding protocols have been largely evaluated using metrics such as packet delivery ratio and routing load, which can only determined how effective a protocol is. The authors describe the process of routing information in wireless network based on network coding and evaluate the efficiency of throughput benefits...

    Provided By Huawei Technologies

  • White Papers // Nov 2012

    Energy Efficiency and Deployment Efficiency Tradeoff for Heterogeneous Wireless Networks

    To meet the global challenge of reducing greenhouse gas emissions and the explosion demand of wireless data traffic, green architecture design is becoming a critical issue for mobile network operators. Heterogeneous deployments of different cell types have been used to fulfill the challenges mentioned above. In this respect, a critical...

    Provided By Huawei Technologies

  • White Papers // Mar 2011

    Intercloud Exchanges and Roots Topology and Trust Blueprint

    Cloud computing is a new design pattern for large, distributed datacenters. Initially, Service providers offering included cloud enabled productivity applications such as search, email, and social networks. Recently they have expanded their offerings to include compute-related capabilities such as virtual machines, storage, and complete operating system services. The cloud computing...

    Provided By Huawei Technologies

  • White Papers // Dec 2008

    IPTV, Towards Seamless Infotainment

    IPTV, enabled by aggregating new technologies in computing, networking, and storage, provides a new information access and entertainment platform in the world of digital evolution. From this perspective where information and entertainment are part of each other, the authors write this paper to address the issues of IPTV towards seamless...

    Provided By Huawei Technologies

  • White Papers // Nov 2009

    Optimal Initiation Based Vertical Handover for UMTS-802.11 WLAN Overlay Networks

    The next generation of wireless communications will be based on a heterogeneous infrastructure consisting different wireless and wired access systems where users will enjoy fast and seamless mobility and "Anytime - anywhere" access to applications with least interruption and disruption of wireless connectivity .In this context, a strong need has...

    Provided By Huawei Technologies

  • White Papers // Mar 2010

    Intercloud Directory and Exchange Protocol Detail Using XMPP and RDF

    Working groups have proposed building a layered set of protocols to solve the Cloud Computing interoperability challenge called "Intercloud Protocols". Instead of each cloud provider establishing connectivity with another cloud provider in a Point-to-Point manner resulting in the n2 complexity problem, Intercloud Directories and Exchanges will act as mediators for...

    Provided By Huawei Technologies

  • White Papers // Jun 2010

    Using XMPP as a Transport in Intercloud Protocols

    Cloud Computing is a term applied to large, hosted datacenters, usually geographically distributed, which offer various computational services on a "Utility" basis. Most typically the configuration and provisioning of these datacenters, as far as the services for the subscribers go, is highly automated, to the point of the service being...

    Provided By Huawei Technologies

  • White Papers // Jul 2010

    Using Semantic Web Ontology for Intercloud Directories and Exchanges

    The concept of a cloud operated by one service provider or enterprise interoperating with a clouds operated by another is a powerful idea. So far that is limited to use cases where code running on one cloud explicitly references a service on another cloud. There is no implicit and transparent...

    Provided By Huawei Technologies

  • White Papers // Jun 2009

    Joint Subcarrier-Relay Assignment and Power Allocation for Decode-and-Forward Multi-Relay OFDM Systems

    Joint power allocation, relay selection, and subcarrier assignment are critical and challenging for achieving full benefits of OFDM based cooperative relay networks. In this paper, the authors study such a problem in a dual-hop multi-relay OFDM system with an objective of maximizing the spectral efficiency under a total power constraint....

    Provided By Huawei Technologies

  • White Papers // May 2010

    Pricing for QoS-Based Wireless Data Services and Its Impact on Radio Resource Management

    The use of cellular networks for both voice and data communications is growing at a rapid pace throughout the world. Such growth was initially fueled by the need for mobile voice communication. However, with the advent of 2G networks and now with 3G networks, data services are quickly outpacing that...

    Provided By Huawei Technologies

  • White Papers // Feb 2009

    Resource Allocation for the LTE Physical Downlink Control Channel

    The next generation of wireless networks will simultaneously support many data and voice users. These users or UEs (User Equipment) will share the uplink and downlink radio resources and so, in each frame, the basestation must signal which UEs are being allocated resources and the location within the frame of...

    Provided By Huawei Technologies

  • White Papers // Aug 2009

    Interference Coordination Through Network-Synchronized Cyclic Beamforming

    The next generation of wireless networks will use multiple techniques to improve channel spectral efficiencies. In this paper, the authors focus on one such technique, beamforming, in the downlink channel. In each sector, a number of fixed beams are used to serve UEs (User Equipment). For each subband in each...

    Provided By Huawei Technologies

  • White Papers // Aug 2009

    System Capacity of a Two-Sector OFDMA Downlink With QoS Constraints

    The authors consider the downlink of an Orthogonal Frequency Division Multiple Access (OFDMA) network. OFDMA transmission technology will be used in the next generation of wireless networks such as the LTE (Long Term Evolution) and WiMAX wireless standards. In such a channel, multiple User Equipments (UE) may each be allocated...

    Provided By Huawei Technologies

  • White Papers // Mar 2009

    On the Performance of Downlink Beamforming With Synchronized Beam Cycles

    The next generation of wireless networks (e.g.,) will use multiple techniques to improve channel spectral efficiencies. In this paper, the authors focus on one such technique, beamforming, in the downlink channel. In each sector, a number of fixed beams are used to serve UEs (User Equipment). For each frame, the...

    Provided By Huawei Technologies

  • White Papers // Oct 2008

    Cooperative Scheduling of Downlink Beam Transmissions in a Cellular Network

    The next generation of wireless networks (e.g.,) will use multiple techniques to improve channel spectral efficiencies. In this paper, the authors focus on one such technique, beamforming, in the downlink channel. In each sector a number of fixed beams are used to serve users. For each frame the scheduler chooses...

    Provided By Huawei Technologies

  • White Papers // Aug 2008

    Broadcasting VBR Traffic in a WiMAX Network

    The next generation of wireless networks (LTE, WiMAX and UMB) will have sufficient capacity to support video broadcasts in addition to unicast services such as voice and data. Since, broadcast services are resource intensive, radio resources must be carefully managed to ensure proper operation of the unicast services. One approach...

    Provided By Huawei Technologies