Authentication email has already been sent, please check your email box: and activate it as soon as possible.
You can login to My Profile and manage your email alerts.
If you haven’t received the email, please:
|
|
There are 5 papers published in subject: > since this site started. |
Results per page: |
Select Subject |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
1. Power and Spectrum Allocation in D2D Networks Based on Coloring and Chaos Genetic Algorithm | |||
Ru Mengmeng,Yin Sixing,Qu zhaowei | |||
Electrics, Communication and Autocontrol Technology 04 November 2016 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:To tackle the current issue of spectrum resource scarcity, Device-to-Device (D2D) communication is considered as an important technology for sharing spectrum with cellular users, which enables high-speed and convenient services. In this paper, we consider the spectrum and power allocation problem for D2D communication in underlaying cellular networks. In particularly, we focus on a D2D network, where spectrum resource is shared among all D2D users. Unlike existing works that mainly focus on D2D users sharing spectrum with cellular users, we analyze not only the spectrum resources allocation but also the optimization of the transmission power for each D2D transceiver pair to maximize D2D system capacity maximize. We first formulate the network model and signal-to-interference-plus-noise ratio (SINR) by some stochastic geometry knowledges. In addition, we formulate the spectrum resource allocation and power selection as a mixed integer non-linear programming (MINLP) problem to maximize the system capacity. Inspired by existing intelligent algorithms, we propose a heuristic chaos genetic algorithm associated with four color theorem to solve this problem. In order to prove the feasibility and efficiency of this algorithm, we compare this problem with brute-force search algorithm in simulation results. It shows that the proposed chaos genetic algorithm combine with graph coloring method can approach system capacity optimal but algorithm complexity is greatly reduced. We also verify the system parameter influence of the system capacity in this network.(10 Points, Times New Roman) | |||
TO cite this article:Ru Mengmeng,Yin Sixing,Qu zhaowei. Power and Spectrum Allocation in D2D Networks Based on Coloring and Chaos Genetic Algorithm[OL].[ 4 November 2016] http://en.paper.edu.cn/en_releasepaper/content/4706811 |
2. An Indoor Localization System Based On Backscatter RFID Tag | |||
Wang Jun,Wang Yiyin | |||
Electrics, Communication and Autocontrol Technology 09 May 2016 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:Indoor localization has been actively researched in recent years due to the increasing demand for location-awareness services. However, to balance localization accuracy and system cost is always a challenge for indoor localization systems. Radio frequency identification (RFID) is a promising technology to achieve both goals, because of its reasonable cost and reliability. In this paper, we propose a novel RFID indoor localization system based on angle of arrival (AoA) and phase of arrival (PoA) methods. This system leverages RFID's two experimental signal diffusion characteristics to estimate AoA. One is that the interrogation zone is constrained in a lobe, and only in this area the tag can be queried. The second is that there exits a stable pattern of received signal strength (RSS) on angle changes. We use the two features to find a general area and to pinpoint the AoA consecutively. This effectively narrows the sampling zone (where signal needs to be sampled), and helps to reduce computational complexity. In addition, we reduce the multipath effect on range estimation by determining the AoA and rotating the reader into the direction of the target. Moreover, we exploit two signals with a slightly different frequency to eliminate the phase ambiguity issue. Our system takes only one reader and achieves mean accuracy of 23 cm. The simplicity and effectiveness of our system make it convenient to be used in practice. | |||
TO cite this article:Wang Jun,Wang Yiyin. An Indoor Localization System Based On Backscatter RFID Tag[OL].[ 9 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4685329 |
3. A Compact Dual-Band Monopole Antenna with A T-shaped Slot for WLAN Application | |||
LIU Fangsen,HONG Xiaobin | |||
Electrics, Communication and Autocontrol Technology 19 November 2011 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:A compact dual-band planar monopole antenna for WLAN applications is presented in this paper. The proposed antenna embedded a T-shaped slot can cover 2.4/5.2/5.8 GHz WLAN operating bands. By inserting a T-shaped slot, the compact structure can be achieved. The proposed antenna has a size of 15 ×30 mm2. The prototype of the proposed antenna has been constructed and measured. The measured results of the fabricated antenna show that the impedance bandwidths (S11≤-10dB) are 2.16 - 2.58 GHz and 4.5 - 6.5 GHz, which cover all the 2.4/5.2/5.8 GHz WLAN operating bands. And good omni-directional radiation patterns and antenna gains across the two frequency ranges have been obtained. Details of the antenna design and analysis are discussed in this paper. | |||
TO cite this article:LIU Fangsen,HONG Xiaobin. A Compact Dual-Band Monopole Antenna with A T-shaped Slot for WLAN Application[OL].[19 November 2011] http://en.paper.edu.cn/en_releasepaper/content/4450754 |
4. The Application of Weaver Architecture in the Concurrent Dual-Band Receiver | |||
HE Qing,LIU Yuanan,LI Shulan | |||
Electrics, Communication and Autocontrol Technology 12 January 2011 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:A novel concurrent dual-band receiver with the improved architecture of the Weaver is involved. The Weaver architecture has the ability to discern the required band and the imaged band when it works in single sideband. So with the LOs of the appropriate frequency, the architecture can make out two different signal bands as concurrent dual-band receiver. Compared with a former receiver,the approach can cost less power and reduce system complexity and area. A simulation and theoretical analysis is implemented to demonstrate the feasibility of this approach. | |||
TO cite this article:HE Qing,LIU Yuanan,LI Shulan. The Application of Weaver Architecture in the Concurrent Dual-Band Receiver[OL].[12 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4406166 |
5. Design of a Miniaturization Transceiver Based on TH7122 | |||
Zhao ChunYuan,Cai JingYe | |||
Electrics, Communication and Autocontrol Technology 16 March 2007 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract: In wireless communication domain, miniaturization and low power dissipation of the terminal are always the objects .The paper shows a design of wireless transceiver system.The first, introduces the characteristic of RF IC TH7122, analyses the function and the principle.Then shows how to design a wireless transceiver system based on TH7122,and the debugging process and the result. | |||
TO cite this article:Zhao ChunYuan,Cai JingYe. Design of a Miniaturization Transceiver Based on TH7122[OL].[16 March 2007] http://en.paper.edu.cn/en_releasepaper/content/11471 |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
Results per page: |
About Sciencepaper Online | Privacy Policy | Terms & Conditions | Contact Us
© 2003-2012 Sciencepaper Online. unless otherwise stated