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AntNet-RSLR: A proposed Ant routing protocol for MANETs 蚁网- rslr:一种用于manet的蚁路由协议
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876984
A. Radwan, Tarek M. Mahmoud, Essam. H. Hussein
{"title":"AntNet-RSLR: A proposed Ant routing protocol for MANETs","authors":"A. Radwan, Tarek M. Mahmoud, Essam. H. Hussein","doi":"10.1109/SIECPC.2011.5876984","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876984","url":null,"abstract":"A mobile ad hoc networks (MANETs) is a dynamic mobile wireless network that can be formed without the need for any pre-existing wired or wireless infrastructure. One of the main challenges in an ad hoc network is the design of robust routing algorithms that adapt to the frequent and randomly changing network topology. This paper proposes a novel routing scheme for MANETs, which adapts the AntNet protocol with the blocking-expanding Ring Search and Local Retransmission technique (AntNet-RSLR). According to this protocol, a group of mobile agents build paths between pair of nodes, exploring the network concurrently and exchanging obtained information to update the routing tables that decreases both of the routing message overhead and the average end to end delay less than the well known AntNet, AODV and DSR routing protocols. This led to increase the throughput more than AntNet, AODV and DSR routing protocols. AntNet-RSLR has been implemented using NS-2 simulator.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131827672","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: 28
Evaluation of the communications performance achievable on base station to handheld-terminal radio links with several different practical receive antenna arrays 用几种不同的实际接收天线阵列评估基站到手持终端无线电链路上可实现的通信性能
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876961
G. Dahman, R. Bultitude, R. Hafez
{"title":"Evaluation of the communications performance achievable on base station to handheld-terminal radio links with several different practical receive antenna arrays","authors":"G. Dahman, R. Bultitude, R. Hafez","doi":"10.1109/SIECPC.2011.5876961","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876961","url":null,"abstract":"In this paper, the information extracted from Single-Input Multiple-Output sounding measurements is used to study the effect of several aspects of the receive antenna arrays on system performance. The extracted multipath parameters are used to synthesize the MIMO channel matrices of a hypothesized communication system having a fixed microcellular base-station and a handheld terminal moving throughout the environment, and subsequently study the effect of array configuration on mean effective link gain, eigenvalue dispersion and outage capacity under real-world channel conditions. Three configurations of a dual inverted-F receive antenna array in a generic mobile handset were studied. The work in this paper revealed that on average, the effective power gain of a MIMO link has greater effect on the achievable capacity than multiplexing gain.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133311315","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
Asynchronous switching for low-power CLICHE netwok-on-chip 低功耗陈腔滥调片上网络的异步交换
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876995
M. El-Moursy, H. Shawkey
{"title":"Asynchronous switching for low-power CLICHE netwok-on-chip","authors":"M. El-Moursy, H. Shawkey","doi":"10.1109/SIECPC.2011.5876995","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876995","url":null,"abstract":"Asynchronous switching is proposed to achieve low power Network on Chip. Asynchronous switching reduces the power dissipation of the network if the activity factor of the data transfer between two ports αd is less than A αc + B αclk. Closed form expressions for power dissipation of CLICHE topology are provided for both synchronous and asynchronous switching. The area of the asynchronous switch is 50% greater than the area of the synchronous switch. However, the power dissipation of asynchronous switching could be decreased by up to 75.7%. Asynchronous switching becomes more efficient as technology advances and network density increases. A reduction in power dissipation reaches 82.3% for 256 IPs with the same chip size. Even with clock gating, asyn-choronous switching achieves significant power reduction of 77.7% for 75% clock activity factor.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"57 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120903343","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
Enhanced Forced Symbol Method for improving the error rate performance of turbo codes 提高turbo码误码率性能的增强强制符号方法
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876993
Zeeshan Sattar, A. Al-Sanie, Youssouf Ould-Cheikh-Mouhamedou
{"title":"Enhanced Forced Symbol Method for improving the error rate performance of turbo codes","authors":"Zeeshan Sattar, A. Al-Sanie, Youssouf Ould-Cheikh-Mouhamedou","doi":"10.1109/SIECPC.2011.5876993","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876993","url":null,"abstract":"The Forced Symbol Method (FSM) lowers significantly the error rate, especially in the error floor region. The core of the FSM is the application of repeated decoding, with one or more least reliable symbols being forced to certain values, when an error is detected. The main drawback of the FSM method is its peak complexity which can be high. This paper presents a new approach for reducing the peak and average complexity of the FSM, called Enhanced Forced Symbol Method (EFSM). The main core of the EFSM relies on the evaluation of a set of decisions, when decoding of a frame fails, to determine positions of symbols in decoded frame that are likely to be in error. The efficiency of the EFSM is demonstrated by its ability to reduce significantly both the peak and the average complexity by a factor of 3 to 5.7 when compared to the standard FSM, while achieving essentially the same error rate performance of the standard FSM.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116225922","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: 3
Radar-based detection and estimation of reinforcement elements and degree of corrosion 基于雷达的钢筋单元和腐蚀程度检测与估计
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5877010
Shahid Kabir
{"title":"Radar-based detection and estimation of reinforcement elements and degree of corrosion","authors":"Shahid Kabir","doi":"10.1109/SIECPC.2011.5877010","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5877010","url":null,"abstract":"Corrosion is a process that takes place when essential properties within a given material begin to deteriorate, after exposure to elements that recur within the environment. Radar-based detection has tended to provide unpredictable accuracy in estimating areas of corrosion-induced damage in reinforced concrete structures. This study examines and compares the efficiency of two NDT approaches, the ground penetrating radar (GPR) and the digital half-cell method, for their effectiveness in detecting the location of corroded steel, estimating the different levels of corrosion, and detecting the damaged zones of embedded pre-corroded reinforcement bars in concrete samples.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122494235","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
Crisp commitment scheme based on noisy channels 基于噪声信道的清晰承诺方案
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876892
Alawi A. Al-saggaf
{"title":"Crisp commitment scheme based on noisy channels","authors":"Alawi A. Al-saggaf","doi":"10.1109/SIECPC.2011.5876892","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876892","url":null,"abstract":"In a crisp commitment schemes, a commitment must be opened using a unique opening key. However in such schemes, there could be many instances where the transmission medium or channel is corrupted by some kind of communication (transmission) noise. In this paper, we proposed a new scheme that enables the injection of fuzziness property to current ordinary crisp commitment scheme. In this way, the uncertainty occurring due to the noise presence is mitigated. It is a known fact that this kind of uncertainty naturally leads to the introduction of a fuzziness dimension to the commitment problem at hand. The security characteristic of our scheme relies on any cryptographic assumption unlike the fuzzy commitment scheme in the literature, which is based on hash function and should be strongly collision-free for the scheme to be secure.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128282535","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
A note on the mathematical modeling of power amplifier/loudspeaker nonlinearity in acoustic echo cancellers 关于声学回声消除器中功放/扬声器非线性数学建模的注解
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876893
M. Abuelma'atti
{"title":"A note on the mathematical modeling of power amplifier/loudspeaker nonlinearity in acoustic echo cancellers","authors":"M. Abuelma'atti","doi":"10.1109/SIECPC.2011.5876893","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876893","url":null,"abstract":"In this paper a new simple, three-parameter nonlinear mathematical model is proposed to represent the nonlinear characteristics of the power amplifier/loudspeaker nonlinearity in acoustic echo cancellers. The three parameters of the model are directly related to three distinct different sections of the nonlinear characteristic. The model and its first derivatives are continuous and stretch over the full range of input amplitudes. Using this model in conjunction with a conventional linear adaptive filter, the design of computationally efficient acoustic echo cancellers would be feasible.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122308356","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
Establishing an infrared measurement and modelling capability 建立红外测量和建模能力
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876978
C. Willers, A. Al-ghamdi, D. Bezuidenhout, N. Al-Hosiny
{"title":"Establishing an infrared measurement and modelling capability","authors":"C. Willers, A. Al-ghamdi, D. Bezuidenhout, N. Al-Hosiny","doi":"10.1109/SIECPC.2011.5876978","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876978","url":null,"abstract":"The protection of own aircraft assets against infrared missile threats requires a deep understanding of the vulnerability of these assets with regard to specific threats and specific environments of operation. A key capability in the protection of own assets is the ability to perform infrared measurements, analyse the data and construct signature models of aircraft, countermeasures and the background. The creation of such a capability is a complex task. A framework for capability development was used to identify all required elements and to ensure an optimal and complete programme. Topics covered include Personnel, Organisation, Support, Training, Equipment, Doctrine, Facilities, Information and Technology (POSTEDFIT). This paper reports on the process that was followed and its initial outcome after a two year project was concluded.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126530356","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: 3
Computing of the quality factor in a two dimensional photonic crystal microcavity 二维光子晶体微腔中品质因子的计算
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5877005
A. Benmerkhi, M. Bouchemat, T. Bouchemat, E. Casson
{"title":"Computing of the quality factor in a two dimensional photonic crystal microcavity","authors":"A. Benmerkhi, M. Bouchemat, T. Bouchemat, E. Casson","doi":"10.1109/SIECPC.2011.5877005","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5877005","url":null,"abstract":"In the present paper, we present the design of a filter formed by two waveguide couplers and one microcavity in a photonic crystal (PC) with a square lattice consists of long cylinders of silicon (Si) rods. Waveguide 1 and waveguide 2 are obtained by removing one row of rods. They are used to couple light in and out the microcavity. The finite difference time domain (FDTD) method (fullwave simulator) has been used to simulate optical propagation in this filter. Two rods have been located in the input and output channel waveguides. Their numbers and size have been varied in order to optimize the transmitted power and quality factor of the microcavity. We demonstrate that the calculated Q factor for the designed cavity increases with displacing rods, while the calculated modal volume remains almost constant.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129383514","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
Combined lidar/sun-radiometer remote sensing technique for studying long range aerosol transport 激光雷达/太阳辐射计联合遥感技术研究远距离气溶胶传输
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI: 10.1109/SIECPC.2011.5876916
A. Chaikovsky, S. Denisov, J. Grudo, M. Korol, A. Lopatsin, V. Orlovich, F. Osipenko, A. Slesar, O. Dubovik, P. Goloub, Jana Karol, D. Tanré
{"title":"Combined lidar/sun-radiometer remote sensing technique for studying long range aerosol transport","authors":"A. Chaikovsky, S. Denisov, J. Grudo, M. Korol, A. Lopatsin, V. Orlovich, F. Osipenko, A. Slesar, O. Dubovik, P. Goloub, Jana Karol, D. Tanré","doi":"10.1109/SIECPC.2011.5876916","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876916","url":null,"abstract":"Lidar and sun-radiometer data of the EARLINET, CIS-LiNet and AERONET/PHOTONS stations in the East European area, space observations and local in-situ measurements were used to characterize long range aerosol transport over European regions. Brief description of technique and equipment for implementation of combined lidar and sun-radiometer approach to aerosol monitoring and results of five years observations are presented.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132778403","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
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