2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN)最新文献

Comparative study on different feeding techniques of rectangular patch antenna 矩形贴片天线不同馈电方式的比较研究

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759032

S. Chakravarthy, N. Sarveshwaran, S. Sriharini, M. Shanmugapriya

{"title":"Comparative study on different feeding techniques of rectangular patch antenna","authors":"S. Chakravarthy, N. Sarveshwaran, S. Sriharini, M. Shanmugapriya","doi":"10.1109/WOCN.2016.7759032","DOIUrl":"https://doi.org/10.1109/WOCN.2016.7759032","url":null,"abstract":"A microstrip patch antenna is a planar directional antenna in which a metal patch is placed on top of a dielectric substrate which in turn is placed on top of a metal ground plane. The power transfer between a source and antenna is done through a feed line. In general, the characteristic impedance of a transmission line is 50 ohms. By maximum power transfer theorem, the patch antenna should be fed at a point where input impedance is 50 ohms for maximum input power. There are several feeding techniques for patch antenna to match this condition. In this paper, a comparative study between inset feed, co-axial feed, aperture feed and proximity feed of a rectangular micro-strip patch antenna is done on the basis of S11 parameter, VSWR, directivity, beamwidth, bandwidth and radiation pattern. Design for each feeding technique is simulated and studied using the CST microwave studio software. The resonant frequency of the four antennas studied in this paper is 2 GHz. The fabricated inset fed patch antenna has been tested. It has acceptable return loss and comparable radiation performance with that of the simulated antenna.","PeriodicalId":234041,"journal":{"name":"2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122143462","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: 26

Bit error rate analysis of 4G communication systems 4G通信系统误码率分析

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759874

C. Padmaja, B. Malleswari

引用次数: 5

Network performance evaluation of VPN protocols (SSTP and IKEv2) VPN协议(SSTP和IKEv2)的网络性能评估

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759880

Jay Bryan R. Lawas, A. C. Vivero, Ankit Sharma

{"title":"Network performance evaluation of VPN protocols (SSTP and IKEv2)","authors":"Jay Bryan R. Lawas, A. C. Vivero, Ankit Sharma","doi":"10.1109/WOCN.2016.7759880","DOIUrl":"https://doi.org/10.1109/WOCN.2016.7759880","url":null,"abstract":"A Virtual Private Network (VPN) is a technology that is used to securely connect private network passing through a public network such as the Internet. Using a VPN, a computer, tablet, or smartphone is able to securely connect with others in the Internet as if they were part of a private network. Using this technology may also bring security threats like spoofing, snipping, and hacking as the data travels using the Internet connection. In order to avoid any security attacks, a VPN uses encryption and authentication to secure the data that is travelling in the Internet. A tunnel connection will be established among partners, connected by using a VPN that the attackers cannot infiltrate. This research focuses on the performance evaluation of VPN protocols, mainly the Secure Socket Tunneling Protocol (SSTP) and Internet Key Exchange Version 2 (IKEv2). Throughput, jitter, and delay were measured when the packets were sent from the VPN clients to other client in a test-bed environment. After the test-bed environment research, it was found that IKEv2 had significantly better performance than SSTP in relation to throughput, jitter, and delay.","PeriodicalId":234041,"journal":{"name":"2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127903328","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: 10

Travel management system using GPS & geo tagging on Android platform 在Android平台上使用GPS和地理标记的旅行管理系统

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759019

Amrah Maryam, Nadia Siddiqui, Mohammed A. Qadeer, M. Sarosh Umar

引用次数: 8

LTE-U over Wi-Fi LTE-U over Wi-Fi

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759024

S. A. Termizi, Safia Rahmat, M. Qadeer

引用次数: 3

Assessment of fairness against quality of service parameters in wireless sensor networks 无线传感器网络中服务质量参数的公平性评估

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759021

M. A. Thorat, V. Deshpande

引用次数: 4

Design and implementation of 6LoWPAN border router 6LoWPAN边界路由器的设计与实现

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759025

Praveen Kumar Kamma, Chennakeshava Reddy Palla, U. R. Nelakuditi, R. S. Yarrabothu

引用次数: 12

Ultra-wideband antenna for a ground penetrating radar 用于探地雷达的超宽带天线

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759876

Niloy Chakrabarti, S. Kalra, Sanjeev Saxena, M. Tripathy

{"title":"Ultra-wideband antenna for a ground penetrating radar","authors":"Niloy Chakrabarti, S. Kalra, Sanjeev Saxena, M. Tripathy","doi":"10.1109/WOCN.2016.7759876","DOIUrl":"https://doi.org/10.1109/WOCN.2016.7759876","url":null,"abstract":"In this paper we have modeled a ultra-wideband 4×1 modified Vivaldi antenna array using the software HFSS for GPR applications. A one to four Wilkinson's power divider was designed to form the feed network for the antenna array. We have obtained ultra-wideband characteristics ranging from 1.19 GHz-9.62 GHz and multiband characteristics with frequency bands 9.92 GHz-12.33 GHz, 12.63 GHz-13.43 GHz, 13.71 GHz-14.58 GHz, 15.18 GHz-17.10 GHz and 18.40 GHz-20 GHz. We have obtained gain starting from the frequency 1 GHz which increases gradually with increase in frequency and reaches its peak of 15 dBi at the frequency 7.47 GHz. The Voltage standing wave ratio (VSWR) stays well below the value of 2 from a range of 1.13 GHz-9.67 GHz. Acquiring of ultra-wideband operating frequency band as well as multiband characteristics at very high frequency will facilitate implementation of a Ground Penetrating Radar system. Antenna parameters like return loss (S11) characteristics, gain, VSWR, directivity, E-plane, H-plane radiation patterns at different frequencies and current density on the radiating patch have been evaluated and results are analyzed.","PeriodicalId":234041,"journal":{"name":"2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"197 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113991125","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

Design and analysis of phase locked loop in 90nm CMOS 90nm CMOS锁相环的设计与分析

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759029

G. Bhargav, G. Prasad, Srikar Datta Canchi, B. Chanikya

{"title":"Design and analysis of phase locked loop in 90nm CMOS","authors":"G. Bhargav, G. Prasad, Srikar Datta Canchi, B. Chanikya","doi":"10.1109/WOCN.2016.7759029","DOIUrl":"https://doi.org/10.1109/WOCN.2016.7759029","url":null,"abstract":"Power has become one of the most important concerns in design convergence for multi gigahertz communication systems such as optical data links, wireless products, microprocessor & ASIC/SOC designs. Power consumption has become a bottleneck in microprocessor design. In an effort to reduce the power consumption of the circuit, the supply voltage can be reduced leading to reduction of dynamic and static power consumption. Lowering the supply voltage, however, also reduces the performance of the circuit, which is usually unacceptable. Phase Lock Loop (PLL) is an important analog circuit used in various communication applications such as frequency synthesizer, radio, computer, clock generation, clock recovery, etc. Since all these applications are operating at different frequency, satisfying design constraints for PLL with respect to type of PLL operating frequency, Bandwidth, Settling time and other parameters is an critical and time consuming issue. Phase locked-loops (PLLs) are commonly used to generate well-timed on-chip clocks in high performance digital systems. Modern wireless communication systems employ Phase Locked Loop (PLL) mainly for synchronization, clock synthesis, skew and jitter reduction. Because of the increase in the speed of the circuit operation, there is a need of a PLL circuit with faster locking ability. Many present communication systems operate in the GHz frequency range. Hence there is a necessity of a PLL which must operate in the GHz range with less lock time. PLL is a mixed signal circuit as its architecture involves both digital and analog signal processing units. The present work is implemented in Cadence 90nm CMOS technology.","PeriodicalId":234041,"journal":{"name":"2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114571771","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

Aerial surveillance system using UAV 使用无人机的空中监视系统

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-21 DOI: 10.1109/WOCN.2016.7759885

Zainab Zaheer, Atiya Usmani, E. Khan, M. Qadeer

引用次数: 43