An Integrated Wireless Communication System for Remote Pastoral Areas in Tibet

2013 ◽  
Vol 427-429 ◽  
pp. 2313-2316
Author(s):  
Cao Huang ◽  
Xiao Jun Guo ◽  
Ze Guo Liu

To support mobile communications in remote pastoral areas of Tibet effectively, this paper proposes an integrated wireless communication system including mobile ad hoc network (MANET), wireless senor network (WSN), cellular network and Beidou satellite network. The overall integrated wireless communication system and the relevant elements are described specifically. The proposed system can help to reduce the network deployment cost and provide voice, message and low rate data services.

2020 ◽  
Vol 12 (4) ◽  
pp. 91
Author(s):  
Gleb Sergeevich Vasilyev ◽  
Oleg R. Kuzichkin ◽  
Dmitry I. Surzhik

Performance analysis is carried out, of a multiple input, multiple output (MIMO) ultraviolet (UV) communication system with a non-line-of-sight (NLOS) UV channel. The achievable bit error coefficient is calculated using three spatial multiplexing methods for different bitrate values, azimuthal deviation between the directional diagrams of an optical transmitter and an optical receiver, and different noise levels. Full Text: PDF ReferencesZ. Xu, B. Sadler, "Ultraviolet communications: potential and state-of-the-art", IEEE Commun. Mag. 4667-73 (2009). CrossRef D. Han, Y. Liu, K. Zhang et al., "Theoretical and experimental research on diversity reception technology in NLOS UV communication system", Opt. Expr. 20(14), 15833 (2012). CrossRef Q. Guo, N. He, Z. He, "Research on the channel performances and transmission in UV-LED scatter communications", Study Opt. Comm. 3, 64 (2013). DirectLink G. Chen, L. Liao, Z. Li et al., "Experimental and simulated evaluation of long distance NLOS UV communication", Communication Systems, Networks and Digital Signal Processing (CSND-SP), 9th Int. Symp. on IEEE, 904-909 (2014). CrossRef M.A. El-Shimy, S. Hranilovic, "Spatial-Diversity Imaging Receivers for Non-Line-of-Sight Solar-Blind UV Communications", J. Lightwave Techn. 33(11), 2246 (2015). CrossRef G. Shaw, M. Nischan, M. Iyengar, S. Kaushik, M. Griffin, NLOS UV communication for distributed sensor systems, Proc. SPIE 412683, 96 (2000). CrossRef I.S. Konstantinov, G.S. Vasyliev, O.R. Kuzichkin, D.I. Surzhik, I.A. Kurilov, S.A. Lazarev, "AUV Link Mobile Ad-Hoc Network Examination", J. Eng. Adv. Techn. 8(5S) July 2019 CrossRef I.S. Konstantinov, G.S. Vasilyev, O.R. Kuzichkin, I.A. Kurilov, S.A. Lazarev, "Modeling and Analysis of the Characteristics of Ultraviolet Channels under Different Conditions of Radiation Propagation for the Organization of Wireless AD-HOC Network", J. Adv. Res. Dynam. Contr. Syst. 07, 1853 (2018) DirectLink I.S. Konstantinov, G.S. Vasyliev, O.R. Kuzichkin, D.I. Surzhik, I.A. Kurilov, S.A. Lazarev, "Development Of Uv Communication Channels Characteristics Modeling Algorithm In A Mobile Ad-Hoc Network", J. Adv. Res. Dynam. Contr. Syst. 11(08), 1920 (2019). CrossRef G. Chen, F. Abou-Galala, Z. Xu, B.M. Sadler, "Experimental evaluation of LED-based solar blind NLOS communication links", Opt. Expr. 16(19), 15059 (2008). CrossRef


Author(s):  
Zhiyan A. Younis ◽  
Adnan Mohsin Abdulazeez ◽  
Subhi R. M. Zeebaree ◽  
Rizgar Ramadhan Zebari ◽  
Diyar Qader Zeebaree

Disasters could cause communication systems partially or completely down. In such a case, relief operations need a rapidly deployed communication system to save lives. Exchanging information among the rescue team is a vital factor to make important decisions. Communication system required to be robust to failures, rapidly deployable, easily maintainable to provide better services. Wireless ad-hoc networks could be the choice of establishing communication with the aid of existing infrastructure in a post-disaster case. In order to optimize mobile ad-hoc network performance, address the challenges that could lead to unreliable performance is required. One and most crucial key challenge is routing information from a sender to receiver. Due to the characteristics of a disaster environment such as signal attenuation, communication links exist between rescue crew is short-lived, suffer from frequent route breakage, and may result in unreliable end-to-end services. Many routing protocols have been proposed and evaluated in different network environments. This paper presents the basic taxonomy of Mobile Ad Hoc Networks and the state of the art in routing categorizes (Proactive, Reactive, Geographic-aware and Delay tolerant Networks (DTN)). The comparison of existing routing protocols in Mobile Ad-Hoc Networks indicates that overhead in Proactive and Geographic is competitive with delay in Reactive and DTN routing.


2017 ◽  
Vol 10 (3) ◽  
pp. 593-596
Author(s):  
Jitendra Soni ◽  
Kokila Uikey

Mobile ad-hoc Network [MANET] is the collection of mobile nodes deployed with the short-lived purpose. It is the most innovative and useful variety which provide the facility to establish communication without the prerequisite of any infrastructure. Here, wireless communication medium is usually used for communication and connection establishment purpose. Generally, it is deployed with mobile nodes but can be used for stationary design also. Open nature communication makes it vulnerable for several security threats. This paper has considered the simulation of AODV and ODMRP using Qualnet 5.2 simulator.


2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Ahmad Sabiq

A communication system without network supporting is needed to resolve the paralyzed network and communication infrastucture caused by natural disaster. MANET (Mobile Ad-Hoc Network) is a network consisting of several mobile devices that communicates through wireless network without router. Mobile devices are not only used for voice and data transfer, but also as a router. This research develops a mobile application based on MANET that can communicate without network infrastructure. It can be used when the natural disaster damages the network infrastructure. The testing result shows the application, that runs under android platform, can communicate well in MANET network.Key Word: Ad-hoc network, manet, disaster recoveryPada kondisi bencana alam yang menyebabkan infrastruktur jaringan dan komunikasi lumpuh, dibutuhkan sebuah sistem komunikasi yang mampu digunakan tanpa adanya infrastruktur jaringan. Jaringan MANET (Mobile Ad-Hoc Network) merupakan jaringan yang terdiri dari beberapa perangkat bergerak yang berkomunikasi melalui jaringan nirkabel tanpa router yang secara khusus disediakan, sehingga semua perangkat bergerak yang digunakan selain berfungsi sebagai alat untuk komunikasi dan pertukaran data, juga berfungsi sebagai perantara komunikasi atau router. Pada penelitian ini, dibuat sebuah aplikasi untuk melakukan komunikasi pada perangkat android melalui jaringan tanpa infrastruktur berbasis MANET yang dapat digunakan pada penanggulangan bencana yang mengakibatkan lumpuhnya sarana jaringan dan komunikasi. Dari hasil pengujian, aplikasi yang telah dibuat dapat digunakan untuk berkomunikasi pada perangkat android berbasis jaringan MANET.Kata Kunci: Jaringan ad-hoc, manet, penanggulangan bencana


Author(s):  
Mai Abu Baqar ◽  
Hamza Aldabbas ◽  
Tariq Alwadan ◽  
Mai Alfawair ◽  
Helge Janicke

Mobile Ad Hoc Network (MANET) and Vehicular Ad Hoc Network (VANET) are autonomous systems connected by wireless communication on a peer-to-peer basis. They are self-organized, self-configured, and self-controlled infrastructure-less networks. These kinds of networks have the advantage of being able to be set-up and deployed anywhere and anytime because it has a simple infrastructure set-up and no central administration. Distributing information between these nodes over long ranges in such networks, however, is a very challenging task, since sharing information always has a risk attached to it, especially when the information is confidential. The disclosure of such information to anyone else other than the intended parties could be extremely damaging. They are explored in this chapter.


Author(s):  
Swati Chowdhuri ◽  
Sayan Chakraborty ◽  
Nilanjan Dey ◽  
Ahmad Taher Azar ◽  
Mohammed Abdel-Megeed M. Salem ◽  
...  

Mobile ad hoc Network (MANET) and Multi Input Multi Output (MIMO) communication are emerging techniques in modern communication system. MIMO and MANET have various applications in the wireless communication system. This paper presents a survey on recent advancement of MIMO implemented mobile ad hoc network. A review of more than 40 papers on MIMO communication based mobile ad hoc network and most of the related topics is presented in this work. This paper shows the significant contribution in the field of MIMO communication and mobile ad hoc network. Previous works in this domain can be categorized into four major areas: (a) Mathematical modeling of MIMO channel and Ad hoc networks, (b) Physical Scattering Model of MIMO channel considering fading (c) Spatial multiplexing (OFDM) technique with MIMO channel, (d) Analysis of transmission efficiency of packet radio network. The review paper establishes the advancement in these four areas as well as recent changes in advance communication and networking environments.


Author(s):  
. Harpal ◽  
Gaurav Tejpal ◽  
Sonal Sharma

In this time of instant units, Mobile Ad-hoc Network(MANET) has become an indivisible part for transmission for mobile devices. Therefore, curiosity about study of Mobile Ad-hoc Network has been growing because last several years. In this report we have mentioned some simple routing protocols in MANET like Destination Sequenced Distance Vector, Active Source Redirecting, Temporally-Ordered Redirecting Algorithm and Ad-hoc On Need Distance Vector. Protection is just a serious problem in MANETs because they are infrastructure-less and autonomous. Principal target of writing this report is to handle some simple problems and security considerations in MANET, operation of wormhole strike and acquiring the well-known routing protocol Ad-hoc On Need Distance Vector. This short article will be a great help for the people performing study on real world problems in MANET security.


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