Advances in Engineering Education最新文献_第7页

ACS-fed multiband antenna loaded with staircase radiating strips for wireless communication systems 用于无线通信系统的带阶梯辐射带的acs馈电多波段天线

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293105

P. V. Naidu, Arvind Kumar

引用次数: 3

Interference alignment based on rank constraint for MIMO cognitive interference channel 基于秩约束的MIMO认知干扰信道干扰对齐

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293187

Yibing Li, Xueying Diao, Yuan Tian

{"title":"Interference alignment based on rank constraint for MIMO cognitive interference channel","authors":"Yibing Li, Xueying Diao, Yuan Tian","doi":"10.1109/PIERS-FALL.2017.8293187","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293187","url":null,"abstract":"Interference alignment (IA) is a breakthrough in interference management and has been applied to the cognitive radio (CR) network. In this paper, we focus on applying IA to the CR network comprised of multiple primary users (PUs) and multiple secondary users (SUs). An IA transceiver design scheme is proposed to mitigate the interference among PUs, called, sum rate maximization algorithm based on interference subspace distances minimization (MISD-MSR). The MISD-MSR scheme first introduces a concept of aligned subspace and designs the precoders via aligning the subspaces spanned by interference with the aligned subspace. Then it moves the designed precoders along the direction given by the gradient of the sum rate to further maximize the information rate. However, MISD-MSR cannot be directly used in the secondary network due to the fact that SUs are required to cause no harmful effect on PUs, whereas MISD-MSR makes no attempt to eliminate the interference from SUs to PUs. To address this, we proposed an improved version of MISD-MSR (IMISD-MSR) for the secondary network, where a rank constraint is put into the precoders calculation to force the interference matrix from SU to PU to be zero. Compared with the commonly used scheme which is equivalent to removing some antennas from the SU's transmitter, IMISD-MSR does not demand the SU to equip with additional antennas to eliminate the interference from SUs to PUs. Simulation results show the effectiveness of the proposed schemes in terms of the average sum rate. We further validate the proposed schemes can be applied to the system no matter whether the transmit antennas of SUs are sufficient or not.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"26 1","pages":"482-489"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86326230","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

Performance analysis of airborne TOPS mode 机载TOPS模式性能分析

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293385

Y. Guan, Wenge Chang, Xiangyang Li

引用次数: 0

Passive RFID tag with multiple resonators for object tracking 无源RFID标签与多个谐振器的目标跟踪

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293233

S. Aiswarya, M. Ranjith, S. Menon

{"title":"Passive RFID tag with multiple resonators for object tracking","authors":"S. Aiswarya, M. Ranjith, S. Menon","doi":"10.1109/PIERS-FALL.2017.8293233","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293233","url":null,"abstract":"A comparative study of the realization of 4 bit passive chipless resonator for RFID tag section using 4 resonators and 8 resonators is discussed in this paper. The designed 4 bit passive chipless RFID resonator tag can detect up to 15 objects. Basic resonator is a complementary spiral with direct coupling to the microstrip line (MSL), operating in the L band region. A 4 bit resonator structure using 4 complementary spirals and 8 complementary spirals are designed. The resonance obtained depends upon the length, width and gap of the spiral structure. The 4 bit resonator structure using 8 complementary spirals is twice the duplication of the 4 bit resonator using 4 complementary spirals. The operating frequencies of both the structures are almost the same. The 4 bit resonator structure using 8 complementary spirals gives the amplified version of the signal provided by 4 complementary spirals thus adding range and security to the system. Both the 4 bit spiral resonator structures were simulated using ANSYS HYSS 14. The optimized resonators are fabricated on FR4 substrate and simulated results are validated using Keysight E5080A ENA Vector Network Analyser.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"140 1","pages":"742-746"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82954703","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: 11

A broadside circularly polarized semi-cylindrical dielectric resonator antenna excited with unequal pair of vertical microstrip line 用不等对垂直微带线激励的宽边圆极化半圆柱形介质谐振器天线

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293433

R. Chowdhury, M. Sani, R. Chaudhary

{"title":"A broadside circularly polarized semi-cylindrical dielectric resonator antenna excited with unequal pair of vertical microstrip line","authors":"R. Chowdhury, M. Sani, R. Chaudhary","doi":"10.1109/PIERS-FALL.2017.8293433","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293433","url":null,"abstract":"In this paper, a single feed semi-cylindrical shaped dielectric resonator antenna (DRA) has been utilized to generate circularly polarized radiation in broadside direction (Φ = 0°, θ = 0°). The dielectric resonator has been excited with a pair of vertical microstrip lines with unequal length attached to flat surface of semi-cylinder. In the proposed design, the location of vertical microstrip lines are responsible for generation of orthogonal modes in the dielectric resonator (DR) and their unequal lengths are responsible for establishing phase difference between the orthogonal modes resulting in circular polarization. The fundamental mode HE11δ is excited which radiates in broadside direction. Proposed antenna shows — 10 dB input impedance bandwidth of 24.17% in the frequency range of 2.8–3.57 GHz (at center frequency of 3.18GHz). The axial ratio below 3 dB obtained is 7.7% in the frequency range of 3.11–3.36 GHz (at center frequency of 3.23 GHz). The proposed antenna provides excellent radiation pattern with very low cross polar component with an average gain of 5 dB and consistent good radiation efficiency throughout the working frequency band. To analyze the antenna performance, simulations are carried out on finite element method (FEM) based electromagnetic simulator which is Ansys HFSS software version 14.0. The parametric analysis of proposed antenna parameters such as position of vertical microstrip lines, length and width of microstrip lines, height and radius of semi-cylinder and dielectric resonator permittivity has been performed and their values are optimized in order to find out the optimal dimensions to design antenna for best performance.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"2 1","pages":"1823-1826"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83244108","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

Hybrid multi-corridor path-loss model for locating radio sources under rubble 碎石下无线辐射源定位的混合多通道路径损失模型

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293160

A. S. Tasu, A. Dumitrascu, L. Anchidin, R. Tamas, T. Petrescu

引用次数: 2

Radar target identification using a DTV-based passive radar in South Korea 在韩国使用基于数字电视的无源雷达进行雷达目标识别

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293260

Young-Jae Choi, Seung-Hwan Seol, I. Choi

引用次数: 1

Enhancement of gain with coplanar isosceles triangular patch antenna for dual-band applications 用于双频应用的共面等腰三角形贴片天线增益增强

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293644

P. A. V. Sri, G. Srikanth, B. Krishna, K. Kousalya, S. Lavanya, K. Ooha, R. P. Chaitanya, B. K. Kumar, K. Srinivas, K. K. Naik

引用次数: 7

Design of a single-slab low-profile frequency selective surface 单板低轮廓频率选择面设计

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293531

A. Lalbakhsh, K. Esselle, S. Smith

引用次数: 4

Phase interference dependent single PhC based logic gate structure with T-shaped waveguide as XOR, NOT and OR logic gates 以t形波导作为异或、非和或逻辑门的基于相位干扰的单PhC逻辑门结构

Advances in Engineering Education Pub Date : 2017-11-01 DOI: 10.1109/PIERS-FALL.2017.8293137

E. H. Shaik, N. Rangaswamy

引用次数: 3