Description: winxp全攻略，Windows XP是个人计算机的一个重要里程碑，是实现.NET的基础。该系统集成了数码媒体、无线网络、远程网络等最新的技术和规范并具有极强的兼容性，更美观、更具个性的界面设计，Windows XP的出现将自由释放数字世界的无穷魅力，将为用户带来更加兴奋的全新感受!” 这是微软自夸的话，但不可否认的是，Windows XP确实是Windows史上性能最高的系统，它以NT为核心，拥有极其华丽的外观；它将Win9x/Me的用户带进一个既有Win2000般稳定，而操作却比Win9x/Me/2000更容易的使用环境。
-winxp all Raiders, Windows XP personal computer is an important milestone, achieve.NET foundation. The system integrates digital media, wireless networks, remote networks and the latest technology standard and have good compatibility, more beautiful and more personalized interface design, Windows XP will be the emergence of the digital world free release the endless charm, Users will bring more exciting new faces! "This is Microsoft being boastful, but it is undeniable that Windows XP is Windows history of the highest performance system, which is at the core NT, have extremely ornate exterior; It Win9x/Me users into an existing Win2000 less stable Operating Win9x/Me/2000 more easily than the use of the environment. Platform: |
Size: 363101 |
Author:张小灵 |
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Description: 随着无线mesh网络的普及，其规模和复杂程度持续发展。然而多跳的mesh网络遇到越来越多的难题，比如带宽降低，无线干扰以及网络时延等。譬如，在网络中的每一跳吞吐量会下降多达50％，连续多跳情况下吞吐量下降得更迅速，其结果将导致网络性能的严重降低。在语音和视频应用大量运行的极端情况下，时延和RF干扰将达到不可接受的程度，而导致连接完全中断-wireless mesh network with the popularity of its size and complexity of sustainable development. However, multi-hop mesh networks encountered more and more problems, such as lower bandwidth, wireless interference and network delay, and so on. For example, in each of the network throughput would drop jump up to 50%, for a number of cases jumped more rapid decline in throughput, The results will lead to serious network performance lower. In voice and video applications running of a large number of extreme cases, delay and RF interference will reach an unacceptable level. which led to the link severed Platform: |
Size: 208896 |
Author:wolfguy |
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Description: winxp全攻略，Windows XP是个人计算机的一个重要里程碑，是实现.NET的基础。该系统集成了数码媒体、无线网络、远程网络等最新的技术和规范并具有极强的兼容性，更美观、更具个性的界面设计，Windows XP的出现将自由释放数字世界的无穷魅力，将为用户带来更加兴奋的全新感受!” 这是微软自夸的话，但不可否认的是，Windows XP确实是Windows史上性能最高的系统，它以NT为核心，拥有极其华丽的外观；它将Win9x/Me的用户带进一个既有Win2000般稳定，而操作却比Win9x/Me/2000更容易的使用环境。
-winxp all Raiders, Windows XP personal computer is an important milestone, achieve.NET foundation. The system integrates digital media, wireless networks, remote networks and the latest technology standard and have good compatibility, more beautiful and more personalized interface design, Windows XP will be the emergence of the digital world free release the endless charm, Users will bring more exciting new faces! "This is Microsoft being boastful, but it is undeniable that Windows XP is Windows history of the highest performance system, which is at the core NT, have extremely ornate exterior; It Win9x/Me users into an existing Win2000 less stable Operating Win9x/Me/2000 more easily than the use of the environment. Platform: |
Size: 362496 |
Author:张小灵 |
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Description: 【转载】对传统的TCP协议进行改进以增强其性能，本文特别对无线网络中的TCP性能的改进进行了阐述。-[转载] traditional TCP protocol improvements to enhance its performance, this article especially for wireless networks to improve TCP performance are described. Platform: |
Size: 136192 |
Author:李琉星 |
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Description: 无线网络的效能分析 通过实验了解什么是无线网络的效能 什么是效能异常 如何去改变无线效能方法 如何提升系统效能-Performance analysis of wireless networks learn by experiment what is the performance of wireless network What is the effectiveness of how to change abnormal methods of how to enhance the performance of wireless system performance Platform: |
Size: 7168 |
Author:wang |
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Description: 无线网状网是一种高速率、高容量的多点对多点网络，可把它看成是Ad Hoc网络的简化版本。正如Ad Ho。网络一样，无线网状网中的路由是它的一项关键技术。基于此，本论文对无线网状网的路由协议进行研究。
文中首先介绍了无线网状网的结构，特点以及其发展与现状 其次，分析了Ad hoc网络中各种路由协议的优劣 再次，重点研究了其中的一种动态源路由协议(DSR)的具体实现过程 在DSR的基础上，对其进行改进，提出了一种均衡流量动态源路由协议，对它进行性能分析和仿真。-Wireless Mesh Network is a high-speed, high-capacity multi-point-to-multipoint network, it could be seen as Ad Hoc networks, a simplified version. As the Ad Ho. Networks, wireless mesh routing is a key technology. Based on this, the thesis of the wireless mesh routing protocol research. First, wireless mesh networks, introduced the structure, characteristics and status of its development and secondly, an analysis of Ad hoc network routing protocols in a variety of advantages and disadvantages again, focused on one of the Dynamic Source Routing Protocol (DSR) concrete realization of the process in DSR based on its improvement, a balanced flow of dynamic source routing protocol, its performance analysis and simulation. Platform: |
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Author:诗圣 |
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Description: A paper that I presented on Supervisory Control and Data Acquisition (SCADA) won the second prize at the symposium conducted by the Electrical and Electronics Engineering department of the SRM University. Other topics on which I presented papers were Performance enhancement of wireless sensor networks using directional antennas, Smart card application and wireless communication. Also my research idea titled “Wavelet Based Image Compression Using SPIHT Algorithm “secured third prize in a technical festival. Platform: |
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Author:ajeeth |
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Description: TCP Westwood : End to end estimation of bandwidth to improve TCP performance over wired/wireless networks. Platform: |
Size: 7168 |
Author:abhijeet |
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Description: OMNeT++ is an extensible, modular, component-based C++ simulation library and framework, with an Eclipse-based IDE and a graphical runtime environment. Domain-specific functionality (support for simulation of communication networks, queuing networks, performance evaluation, etc.) is provided by model frameworks, developed as independent projects. There are extensions for real-time simulation, network emulation, alternative programming languages (Java, C#), database integration, SystemC integration, and several other functions. Platform: |
Size: 313344 |
Author:Ahmed |
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Description: Advances of diverse wireless access technologies are
defining the trends of future wireless networks, named Next
Generation Wireless Networks (NGWN), where several access
technologies will coexist and devices will be equipped with
different network interfaces, in order to take advantage of each
access technology. In NGWN communication maintenance is a
concept willing to reach. Therefore, strategies to tackle
mobility and multihoming issues are required. In this paper we
propose an extension of HIP in order to cover challenges that
end to end mobility presents in NGWN. Our approach consists
on sending access technology related information before
handover execution occurs, in order to optimize handover
process. Moreover, the extension tackles QoS issues by sending
application requirements as well as restrictions or
improvements affecting its performance in the new access
technology. Platform: |
Size: 1002496 |
Author:serag |
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Description: Electronic book: Enhancing the Performance of Ad Hoc Wireless Networks with Smart Antennas, suitable for smart antenna algorithm developer Platform: |
Size: 4656128 |
Author:minuscat |
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Description: 基于图论的无线传感器网络自组织性能研究Based on graph theory for wireless sensor networks Performance of self-organization-Based on graph theory for wireless sensor networks Performance of self-organization Platform: |
Size: 256000 |
Author:renww11 |
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Description: The interworking between heterogeneous third-generation cellular networks and wireless local area networks is one promising evolution approach to fourth-generation wireless networks, which can exploit the complementary advantages of the cellular network and WLANs.. This article deals with a policy framework for resource management in a loosely coupled cellular/WLAN integrated network, where load balancing policies are designed to efficiently utilize the pooled resources of the network. A two-phase control strategy is adopted in the load balancing policy, in which call assignment is used to provide a statistical quality of service guarantee during the admission phase and dynamic vertical handoff during the traffic service phase there by minimizing the performance variations.-The interworking between heterogeneous third-generation cellular networks and wireless local area networks is one promising evolution approach to fourth-generation wireless networks, which can exploit the complementary advantages of the cellular network and WLANs.. This article deals with a policy framework for resource management in a loosely coupled cellular/WLAN integrated network, where load balancing policies are designed to efficiently utilize the pooled resources of the network. A two-phase control strategy is adopted in the load balancing policy, in which call assignment is used to provide a statistical quality of service guarantee during the admission phase and dynamic vertical handoff during the traffic service phase there by minimizing the performance variations. Platform: |
Size: 256000 |
Author:smitha |
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Description: 本文着重研究网络中使用的MAC协议对语音传输过程的影响，以及无线传
感器网络中适用的语音编码算法。本文首先综述了现有无线传感器网络中常用
的MAC协议，对这些协议进行了分析比较。提出了一种新的基于TDMA的MAC
协议VR-TDMA，为了测试提出的协议性能，在NS2仿真平台上对该协议进行
了仿真，结果证明该协议具有良好的实时性能。然后研究了几种常用语音编码
算法的性能，通过比较研究，认为ADPCM语音编码算法的性能符合无线传感
器网络应用的要求，并对该算法进行了简化，减少了算法运行的计算量。实际
测试表明，算法具有良好的性能。
-In this paper,we concentrate on the mac protocols of wireless sensor networks，
especially the impact imposed on speech transmition．We also want to find a speech
coder which is fit for wireless sensor networks．Firstly,we intorduce the existing mac
protocol，such aS IEEE802．1 1，SMAC protocol，TRAMA protocol，DMAC protoc01．
Moreover we analyse and make comparison of them．Secondly，we propose a new
mac protocol named VR-TDMA．Simulation in NS2 proves that this protocol Canhave pleasing performance in real．time application．Thirdly,we
make a comparison
of some famous speech encoders．The result indicates that ADPCM(Adaptive
Di脏rential Pulse Code Modulation)is simpler than advanced low bit。rate VOICe
coding techniques and doesn’t require as heavy caculations．In this work，We simplify
the algorithm in order tO make it fit for the networks beaer．Actual tests prove that
this simplified algorithm work well in wireless sensor networks． Platform: |
Size: 3294208 |
Author:曾晓丽 |
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Description: 利用opnet对802.11无线网络的性能分析与评估，国外最新文章，介绍了无线网络在opnet下的运行的性能，并得出一个新的结论。-Using opnet 802.11 wireless network performance analysis and evaluation, the latest article describes the running performance of the wireless network in opnet, and draw a new conclusion.
Platform: |
Size: 857088 |
Author:胖子 |
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Description: Anypath routing is proposed to improve the performance
of wireless networks by exploiting the spatial diversity and
broadcast nature of the wireless medium. In this paper, we study
anypath routing in wireless networks with directional antennas,
and propose DART (Directional Anypath RouTing), a crosslayer
design of MAC and routing layers. For the routing layer,
we propose two shortest directional anypath routing algorithms
based on two antenna models. Our routing algorithms are
simple and fast, thus are suitable for implementation in practical
protocols. For the MAC layer, we present a directional anycast
MAC, which is an enhancement to the IEEE 802.11 MAC, making
DART suitable for integration into current systems. Simulation
results show that DART can significantly reduce the packet
transmission delay.
Platform: |
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Author:fahim68 |
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Description: MU-MIMO is widely considered a key technology
for system capacity improvement in modern
wireless networks. In contrast to
SU-MIMO, where the spatial multiplexing gain
is confined to a single user, MU-MIMO allows
multiple users to be co-scheduled on the same
time-frequency resources to exploit this gain
among two or more UE units. This is particularly
beneficial as high-rank SU-MIMO transmission
is often limited by the number of
antennas and antenna design constraints at the
user end, whereas high-rank transmission using
MU-MIMO is more feasible due to the scattered
user distribution.
It is well known that the information theoretic
optimal MU-MIMO scheme is dirty paper
coding (DPC), which unfortunately is a nonlinear/
non-causal beamforming scheme and therefore
unrealistic in real-life applications. From a
practical deployment point of view, the most Platform: |
Size: 407552 |
Author:nebiyu |
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Description: Intelligent reflecting surface (IRS) is a promising
technology to enhance the coverage and performance of wireless
networks. We consider the application of IRS to non-orthogonal
multiple access (NOMA), where a base station transmits superposed signals to multiple users by the virtue of an IRS. The
performance of an IRS-assisted NOMA networks with imperfect
successive interference cancellation (ipSIC) and perfect successive
interference cancellation (pSIC) is investigated by invoking 1-
bit coding scheme. In particular, we derive new exact and
asymptotic expressions for both outage probability and ergodic
rate of the m-th user with ipSIC/pSIC. Based on analytical
results, the diversity order of the m-th user with pSIC is in
connection with the number of reflecting elements and channel
ordering. The high signal-to-noise radio (SNR) slope of ergodic
rate for the m-th user is obtained. The throughput and energy
efficiency of IRS-NOMA networks are discussed both in delaylimited and delay-tolerant transmission modes. Additionally, we
derive new exact expressions of outage probability and ergodic
rate for IRS-assisted orthogonal multiple access (IRS-OMA).
Numerical results are presented to substantiate our analyses and
demonstrate that: i) The outage behaviors of IRS-NOMA are
superior to that of IRS-OMA and relaying schemes; ii) The M-th
user has a larger ergodic rate than IRS-OMA and benchmarks.
However, the ergodic performance of the m-th user exceeds
relaying schemes in the low SNR regime; and iii) The IRS-assisted
NOMA networks have ability to achieve the enhanced energy
efficiency compared to conventional cooperative communications Platform: |
Size: 340469 |
Author:dipfr@yahoo.fr |
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Description: To address the ever increasing high data rate and
connectivity requirements in the next generation 5G wireless
network, novel radio access technologies (RATs) are actively
explored to enhance the system spectral efficiency and connectivity. As a promising RAT for 5G cellular networks, nonorthogonal multiple access (NOMA) has attracted extensive
research attentions. Compared with orthogonal multiple access
(OMA) that has been widely applied in existing wireless communication systems, NOMA possesses the potential to further
improve system spectral efficiency and connectivity capability.
This paper develops analytical frameworks for NOMA downlink
and uplink multi-cell wireless systems to evaluate the system
outage probability and average achievable rate. In the downlink
NOMA system, two different NOMA group pairing schemes are
considered, based on which theoretical results on outage and
achievable data rates are derived. In the uplink NOMA, revised
back-off power control scheme is applied and outage probability
and per UE average achievable rate are derived. As wireless
networks turn into more and more densely deployed, inter-cell
interference has become a dominant capacity limiting factor but
has not been addressed in most of the existing NOMA studies.
In this paper a stochastic geometry approach is used to model a
dense wireless system that supports NOMA on both uplink and
downlink, based on which analytical results are derived either in
pseudo-closed forms or succinct closed forms and are further
validated by simulations. Numerical results demonstrate that
NOMA can bring considerable system-wide performance gain
compared to OMA on both uplink and downlink when properly
designed Platform: |
Size: 6695586 |
Author:dipfr@yahoo.fr |
Hits:
Search - wireless networks performance