2012 15th International Multitopic Conference (INMIC)最新文献_第3页

A review of channel dependent scheduling in wireless networks 无线网络中信道相关调度的研究进展

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511471

M. S. Afaqui, Amna Qureshi

{"title":"A review of channel dependent scheduling in wireless networks","authors":"M. S. Afaqui, Amna Qureshi","doi":"10.1109/INMIC.2012.6511471","DOIUrl":"https://doi.org/10.1109/INMIC.2012.6511471","url":null,"abstract":"The demand of wireless networks has arisen in the past 10 years as more and more people are opting to use mobile for not only making a voice call but to use this technology for different purposes such as emailing, texting, etc. While the cost of equipment used in the wireless networks creates a difficulty in having more and more equipment installed, there is a greater need for the fair share of resources of the network. One of the solutions to the better management of wireless resources is scheduling. Scheduling is the process by which different users of a system get the access of the shared resource. These shared resources in the system are always limited as compared to the increase number of users accessing the system. At this point scheduling provides means to fair access for different users. In this paper we would like to analyze a scheduling scheme called channel dependent scheduling. Our emphasis would be on how this scheduling is done in the current wireless technologies, with a brief description of the physical layer of these technologies. We would also discuss some of the channel dependent scheduling algorithms proposed for the future wireless technologies such as MANETs (Mobile Adhoc Networks).","PeriodicalId":396084,"journal":{"name":"2012 15th International Multitopic Conference (INMIC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114413880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tree based multipath data diffusion for Multimedia Wireless Sensor Networks 基于树的多媒体无线传感器网络多路径数据扩散

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511477

Muhammad Zaid Hameed, A. Shahid, S. Khan, Z. Khan

{"title":"Tree based multipath data diffusion for Multimedia Wireless Sensor Networks","authors":"Muhammad Zaid Hameed, A. Shahid, S. Khan, Z. Khan","doi":"10.1109/INMIC.2012.6511477","DOIUrl":"https://doi.org/10.1109/INMIC.2012.6511477","url":null,"abstract":"Wireless Multimedia Sensor Networks (WMSNs) have come forth as a significant technology with striking performance in processing of multimedia signals and increase an encompassing range of real time applications. However, WMSNs have strict restraints with respect to available resources in terms of bandwidth, energy and processing capacities of sensor nodes. So, in place of a stand alone video sensor node, it is suitable to use multiple video sensors which operate the acquired information locally and intercommunicate with each other to draw out the crucial data and send it to the sink. Thus, in-network collaborative processing renders solutions to multimedia applications with decreased processing power, data delivery response time and energy consumption. In this paper, we present a novel multipath construction scheme which builds disjoint, minimum hop and energy efficient multiple paths between base station and video sensor nodes and between different video sensor nodes for in-network collaborative processing. On demand path construction priorities can be assigned according to the situation. Performance evaluation of our suggested path construction scheme demonstrates its effectivity for collaborative video sensor networks.","PeriodicalId":396084,"journal":{"name":"2012 15th International Multitopic Conference (INMIC)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116144335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Energy extraction from RF/ Microwave signal 射频/微波信号的能量提取

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511489

U. Batool, A. Rehman, N. Khalil, M. Islam, M. Afzal, T. Tauqeer

引用次数: 12

Reconfigurable magnetorquer for the CubePMT module of CubeSat satellites 用于CubeSat卫星CubePMT模块的可重构磁振器

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511478

Anwar Ali, L. Reyneri, J. C. de los Rios, H. Ali, M. R. Mughal

{"title":"Reconfigurable magnetorquer for the CubePMT module of CubeSat satellites","authors":"Anwar Ali, L. Reyneri, J. C. de los Rios, H. Ali, M. R. Mughal","doi":"10.1109/INMIC.2012.6511478","DOIUrl":"https://doi.org/10.1109/INMIC.2012.6511478","url":null,"abstract":"This paper describes reconfigurable magnetorquer coil designed and implemented for the CubePMT (CubeSat power management tile) module of CubeSat. CubeSat has different modules and Power Management Tile (PMT) is the fundamental one. We designed Power Management Tile for the CubeSats, called CubePMT. It comprises of power supply, housekeeping and attitude sensors, on-board processor and attitude actuator. CubeSat requires precise and efficient attitude actuators subsystem. Magnetorquer coil is the most essential element of the attitude actuator subsystem. It generates magnetic field which interacts with the earth magnetic field and provides torque to the satellite. The goal of this work is to provide CubeSat with a magnetorquer coil which has small dimensions, less weight and low heat generation inside PCB. It should be reconfigurable and occupy no extra space on the spacecraft. It is integrated inside PCB four internal layers. Magnetorquer coil in each layer is treated as individual coil and is attached through switches. Changing the arrangements of these switches, one can use either a single coil, two, three or four coils in series or in parallel. This reconfigurable design gives a freedom in generating any amount of dipole moment and control power dissipation and heat generation inside the CubePMT module.","PeriodicalId":396084,"journal":{"name":"2012 15th International Multitopic Conference (INMIC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121614459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Adaptive equalization of a nonlinear recursive channel using Gaussian RBF based network 基于高斯RBF网络的非线性递归信道自适应均衡

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511453

J. Shah, I. Qureshi, Amir A. Khaliq, M. Iqbal

引用次数: 1

Real time high precision harmonic analysis of signals in power systems using HW/SW Co-Design methodology on FPGAs 基于fpga的软硬件协同设计方法对电力系统信号进行实时高精度谐波分析

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511447

E. Anjum, F. Khan, Z. Khan

{"title":"Real time high precision harmonic analysis of signals in power systems using HW/SW Co-Design methodology on FPGAs","authors":"E. Anjum, F. Khan, Z. Khan","doi":"10.1109/INMIC.2012.6511447","DOIUrl":"https://doi.org/10.1109/INMIC.2012.6511447","url":null,"abstract":"Increase in use of nonlinear devices in power systems has caused serious harmonic pollution. There is always a need to measure these harmonics for power quality assessment and in cases for mitigating these harmonics. The problem of precision measurement becomes irksome because of effects of frequency deviation. Over the course of time a whole slew of digital signal processing algorithms have been proposed to accurately analyze harmonics in scenarios of frequency deviation but they come with a much increased cost in computational complexity. These computational requirements make them impractical for use in real-time monitoring systems. A computationally complex but highly precise algorithm has been selected for integration into real-time harmonic analysis systems. Due to its complexity it owes its suitability only in offline harmonic analysis system. We have proposed a scheme to realize this algorithm in a manner so that it meets real-time constraints. We have partitioned the algorithm using a Hardware/Software (HW/SW) Co-Design methodology to optimize performance and resource utilization. The design fits well onto low cost Field Programmable Gate Arrays (FPGAs) which have moderate resource count. The computational time advantage achieved by our scheme is compared with an embedded software implementation and performance gain has been presented.","PeriodicalId":396084,"journal":{"name":"2012 15th International Multitopic Conference (INMIC)","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133929748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Temperature based fault forecasting in computer clusters 基于温度的计算机集群故障预测

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511446

S. Haider, Naveed Riaz Ansari

{"title":"Temperature based fault forecasting in computer clusters","authors":"S. Haider, Naveed Riaz Ansari","doi":"10.1109/INMIC.2012.6511446","DOIUrl":"https://doi.org/10.1109/INMIC.2012.6511446","url":null,"abstract":"Clusters and Grids have one thing common and that is they both are used to achieve High Performance in Computing. The scope of Cluster is relatively narrow compared to Grid, as Clusters are homogeneous while Grids are heterogeneous. Another emerging area in High Performance Computing (HPC) is Cloud computing that can be considered as a further extension of Grid computing. Apart from other issues that exist in Clusters, Grids and Clouds, there is one common problem or issue that is available in all of them and that is Fault Tolerance and Handling. Fault Tolerance is the technique or the set of techniques that are used when different types of Hardware, Software, Network and other types of problems come during the handling and execution of Clusters, Grids and Clouds. In this research we have focused on fault identification and forecasting from Clusters point of view and have tried to establish a technique that forecasts the faults in Clusters based environments on the basis of temperature. Nodes keep on receiving and monitoring the temperature of the attached devices from temperature sensor and check the temperature threshold values of those devices. If the temperature threshold value of devices is within the range than we place/rate the machine in Green zone. Similarly if temperatures are approaching threshold values then we place the machines in Orange zone that represents that machine may or may not crash on the basis of temperature. Similarly when the devices have crossed the threshold values of the temperature then we place the machine in Red zone that represents that machine is likely to fail due to the failure of one or more hardware devices any time.","PeriodicalId":396084,"journal":{"name":"2012 15th International Multitopic Conference (INMIC)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132068051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Routing proposals for multipath interdomain routing 多路径域间路由的路由建议

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511507

S. M. Bilal, Muhammad Naveed Dilber, Atta ur Rehman Khan

引用次数: 2

Implementation of IPsec on performance enhancing proxies for long distance wireless and satellite networks IPsec在远距离无线和卫星网络性能增强代理上的实现

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511497

W. A. Gulzar, Z. Khan, R. Nawaz

{"title":"Implementation of IPsec on performance enhancing proxies for long distance wireless and satellite networks","authors":"W. A. Gulzar, Z. Khan, R. Nawaz","doi":"10.1109/INMIC.2012.6511497","DOIUrl":"https://doi.org/10.1109/INMIC.2012.6511497","url":null,"abstract":"Wireless communication nowadays is becoming ever more popular due its ease of mobility and reduced channel implementation cost. A lot of work has been done especially in the field of long distance wireless communication but one fundamental problem that still persist is the implementation of land based protocols over the wireless links like TCP that was originally made for terrestrial based networks, when applied to long distance wireless links like satellite, performs poorly due to long RTT's and high error pronged environment. One of the techniques to improve TCP performance in long distance wireless networks is to use the PEP (performance enhancing proxy) but it cannot operate with IPsec (well-known internet layer security protocol) as it hides the information that the PEP requires. In my work I have implemented an application specific PEP and a separate minimum encryption procedure that will ensure additional security as the IPsec is implemented in a cautious mode. As a result PEP and IPsec can work simultaneously with requisite amount of security with minimum overheads. Simulations are performed in OPNET.","PeriodicalId":396084,"journal":{"name":"2012 15th International Multitopic Conference (INMIC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121763982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

IMS fault localization issues and challenges IMS故障定位问题和挑战

2012 15th International Multitopic Conference (INMIC) Pub Date : 2012-12-01 DOI: 10.1109/INMIC.2012.6511491

M. A. Azad, M. Tariq, J. Arshad, Syed Khurram Jah Rizvi

引用次数: 1