2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN)最新文献_第2页

A secured alternative path routing protocol against DoS attack 针对DoS攻击的安全替代路径路由协议

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923046

S. Tapaswi, C. Kavitha

引用次数: 2

Analyzing digital overlay technique over marine voice channel for disaster dissemination 海洋语音信道灾害传播数字叠加技术分析

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923090

Vrinda N. Menon, A. Suresh

{"title":"Analyzing digital overlay technique over marine voice channel for disaster dissemination","authors":"Vrinda N. Menon, A. Suresh","doi":"10.1109/WOCN.2014.6923090","DOIUrl":"https://doi.org/10.1109/WOCN.2014.6923090","url":null,"abstract":"Regardless of much advancement in terrestrial communication technologies, marine communication technology has been stagnating for the last few decades especially with fishing vessels. Bringing a new communication technology in marine is difficult because it should consider maritime regulations and should be interoperable with the existing systems. Even though GPS assisted navigation aids have attempted to bridge this gap, they are restricted to large marine vessels and support high data rate transmission which is not required for alert messaging. There is an imperative need for a low data rate digital communication network for fishing vessels. This work analyzes various PHY layer characteristics for optimizing the performance of VHF maritime networks. This involves the selection and study of a suitable transceiver IC and analysis of modulation schemes supported by the IC using NI PXIe. Modulation blocks are implemented in Lab VIEW and the frequency spectrums are analyzed by varying the frequency range, resolution, and data rate according to our requirements. An on demand hopping algorithm is also devised and the effect of digital transmission over analog channels is also analyzed using NI-PXIe.","PeriodicalId":149158,"journal":{"name":"2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128510363","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

Investigation to find optimal modulation format for low power inter-satellite optical wireless communication (LP-IsOWC) 低功率星间光无线通信(LP-IsOWC)最优调制格式研究

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923094

S. Saini, Amit Gupta

引用次数: 17

A novel approach for power reduction in asynchronous circuits by using AFPT 一种利用AFPT降低异步电路功率的新方法

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923091

Shravan, Pavan Kumar, K. Sivani

{"title":"A novel approach for power reduction in asynchronous circuits by using AFPT","authors":"Shravan, Pavan Kumar, K. Sivani","doi":"10.1109/WOCN.2014.6923091","DOIUrl":"https://doi.org/10.1109/WOCN.2014.6923091","url":null,"abstract":"In this paper, a novel approach for power reduction in asynchronous circuits by using Asynchronous Fine-Grain Power-Gated Technique (AFPT) introduced. An AFPT developed by Improved Efficient Charge Recovery Logic (IECRL), which gives logic function to the next succeeding stage. In the AFPT circuit, IECRL gates attains power from hand shake controller and become active only when executing required calculations. In active mode the leakage currents are reduced by providing high resistance path through the NMOS transistor in pull-up network. In inactive mode IECRL gates are not taken any amount of power, this gives insignificant leakage power dissipation. Its maximum power saving against ECRL is up to 89.35%. In AFPT circuit handshake controller used to provide power to the IECRL gate and which handles the hand shaking with the neighboring stages. In the AFPT circuit PCR mechanism is used to transfer the charge of discharging phase of IECRL gate to evaluate phase of the another IECRL gate, to reduce the energy dissipation. Early discharging of IECRL gate can be achieved by using modified C-element called C*-element.","PeriodicalId":149158,"journal":{"name":"2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007419","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

Routing in FSO MANETs — QoS and directionality 无线局域网中的路由——QoS和方向性

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923062

Salma Fauzia, K. Fatima

引用次数: 1

A simple frequency up-conversion scheme for a 60 GHz RoF system with remodulation 60 GHz RoF系统的简单上变频方案

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923080

K. Namitha, R. Pradeep, N. Vijayakumar

引用次数: 3

Antenna miniaturization techniques for wireless applications 无线应用的天线小型化技术

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923083

Divyanshu Upadhyay, Ravi Prakash Dwivedi

{"title":"Antenna miniaturization techniques for wireless applications","authors":"Divyanshu Upadhyay, Ravi Prakash Dwivedi","doi":"10.1109/WOCN.2014.6923083","DOIUrl":"https://doi.org/10.1109/WOCN.2014.6923083","url":null,"abstract":"In wireless communication, antenna miniaturization is a vital issue these days. This paper presents the simulation analysis of small planar antennas using different antenna miniaturization techniques. They have brought to define miniaturization methods by which we can estimate the use of micro strip antennas. Various govt. and private sector organizations made use of these techniques to solve the problem of antenna fabrication in mobiles, satellites, missiles, radar navigational aids and military applications. These techniques are used to reduce the physical size but to increase the bandwidth and efficiency of antenna. Some approaches for antenna miniaturization are introduction of slots, slits, short meandering and novel geometries like fractals or by using higher dielectrics constant. The effect of miniaturization in various antenna parameters like, radiation efficiency, gain and bandwidth are discussed. Finally the paper reports a brief description of miniaturization of antenna by using suitable and efficient methods that includes use of double layered substrate structure in microstrip patch antenna.","PeriodicalId":149158,"journal":{"name":"2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128301826","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

Performance analysis of SC MIMO-CDMA system using STBC codes 采用STBC码的SC MIMO-CDMA系统性能分析

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923056

K. Jyostna, Firas Abedi, N. Gouri, B. Bhandari

引用次数: 4

Empirical model for improving throughput of 802.11 MAC 提高802.11 MAC吞吐量的经验模型

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923045

V. Bhosale, V. Raisinghani

{"title":"Empirical model for improving throughput of 802.11 MAC","authors":"V. Bhosale, V. Raisinghani","doi":"10.1109/WOCN.2014.6923045","DOIUrl":"https://doi.org/10.1109/WOCN.2014.6923045","url":null,"abstract":"Wireless devices are typically battery operated hence energy efficiency is essential for wireless networks. 802.11 is also used as the MAC protocol for wireless sensor networks. It is essential to reduce the energy consumption of sensor nodes. To achieve this, it is desirable to have a model of performance of the 802.11 protocol to study the impact of various parameters on the throughput and energy consumption. Existing research has many models for 802.11. These models show the performance measurement of an 802.11 as a function of number of competing stations sharing access point, effect of size of the packet on throughput, infrastructure and adhoc mode, speed of the vehicle(for VANET), effect of environment, etc. In our work we perform experiments with devices to emulate a WSN, using 802.11 enabled laptops, and model the performance of 802.11. We vary MTU and distance to determine the impact on throughput, in presence or absence of a simple wooden barrier. We determine a simple generic model for throughput dependent on the distance and MTU. This model will help to determine an optimal MTU for varying conditions, to achieve maximum throughput. If the throughput is high, the energy savings are expected to be higher. This model could be applied to wireless sensor networks. Our results show that simple linear equations fit the throughput data. These are single variable models for MTU and throughput, for different distances. We have also developed a two variable model for throughput as a function of MTU and distance.","PeriodicalId":149158,"journal":{"name":"2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117123449","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

Reliability computation of mobile Ad-Hoc network using logistic regression 基于逻辑回归的移动自组网可靠性计算

2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2014-10-16 DOI: 10.1109/WOCN.2014.6923060

Moirangthem Marjit Singh, Mriganka Baruah, J. K. Mandal

引用次数: 15