In large cellular network macro cells are used as they cover large areas about more than 5km in radius but they have drawbacks when we consider the services between these cells, the areas where the signal quality decays are large shopping malls, small garages, tunnels and underground railways, as macro cells is unable to cover these specific areas. So here the microcells are required. Microcells cover almost 1Km radius so the areas where the macro cells are unable to provide services, microcells are used. Microcells are deployed relatively closer than macro cells so they experience intercell interference, which occurs when UE(user equipment) is at edge of a cell and receiving signals from two base stations simultaneously but with same carrier frequency, here problem arises for the user for the selection of base station, so DCS (Dynamic cell selection) is applied between the cells to reduce the interference between the cells.
{"title":"INTERCELL INTERFERENCE MITIGATION IN MICROCELL USING DYNAMIC CELL SELECTION TECHNIQUE","authors":"Muhammad Umair Ghori","doi":"10.18063/wct.v0i0.458","DOIUrl":"https://doi.org/10.18063/wct.v0i0.458","url":null,"abstract":"In large cellular network macro cells are used as they cover large areas about more than 5km in radius but they have drawbacks when we consider the services between these cells, the areas where the signal quality decays are large shopping malls, small garages, tunnels and underground railways, as macro cells is unable to cover these specific areas. So here the microcells are required. Microcells cover almost 1Km radius so the areas where the macro cells are unable to provide services, microcells are used. Microcells are deployed relatively closer than macro cells so they experience intercell interference, which occurs when UE(user equipment) is at edge of a cell and receiving signals from two base stations simultaneously but with same carrier frequency, here problem arises for the user for the selection of base station, so DCS (Dynamic cell selection) is applied between the cells to reduce the interference between the cells.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87825254","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}
The trend of mobile, broadband and IP is becoming more and more prominent. Mobile communication technology is now in acritical period in the evolution of network technology. As such, LTE (Long Term Evolution) comes to light. LTE serves as a unified standardfor the new generation of mobile communications, equipped with high spectral efficiency, high peak rate, high mobility, flat networkarchitecture and other advantages. Huawei has played a very important role in the commercialization of LTE. As a sponsor of NGMN,Huawei has been actively involved in the research of some key projects of NGMN, such as network self-optimization, system architectureand Network performance evaluation and so on. This paper mainly introduces the problems encountered in the optimization of LTEnetwork coverage, the practical problems encountered by the LTE project team in Qingdao and the analysis and solutions to the problems.At the same time, this paper discusses in detail on the LTE network optimization process.
{"title":"Optimization of LTE Network Coverage","authors":"Fu Yanbo","doi":"10.18063/WCT.V1I1.521","DOIUrl":"https://doi.org/10.18063/WCT.V1I1.521","url":null,"abstract":"The trend of mobile, broadband and IP is becoming more and more prominent. Mobile communication technology is now in acritical period in the evolution of network technology. As such, LTE (Long Term Evolution) comes to light. LTE serves as a unified standardfor the new generation of mobile communications, equipped with high spectral efficiency, high peak rate, high mobility, flat networkarchitecture and other advantages. Huawei has played a very important role in the commercialization of LTE. As a sponsor of NGMN,Huawei has been actively involved in the research of some key projects of NGMN, such as network self-optimization, system architectureand Network performance evaluation and so on. This paper mainly introduces the problems encountered in the optimization of LTEnetwork coverage, the practical problems encountered by the LTE project team in Qingdao and the analysis and solutions to the problems.At the same time, this paper discusses in detail on the LTE network optimization process.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81642760","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}
With the rapid development of global communications business, future personal communication wireless mobile communicationtechnology has aroused great concern. Way to eliminate the impact of co-channel interference (CCI), multiple access interference (MAI)and multipath fading becomes a major factor in improving the performance of wireless mobile communication systems. The smart antennauses the digital signal processing technology to generate the spatial directional beam so that the antenna main beam is aligned with thedirection of arrival of the user signal. The side lobe or the zero point is aligned to the direction of the interfering signal to reach the fullefficient use of the mobile subscriber signal, thus remove or suppress the interference signal purpose. Compared with other increasinglydeep and mature interference removal technology, the application of smart antenna technology in mobile communication is even more in theascendant and showing great potential. One of the key technologies of the third generation mobile communication standard TD-SCDMAsystem submitted by our country is the intelligent antenna technology. The paper introduces the history and development of the smartantenna in detail, and deeply analyzes the application of the smart antenna in TD-SCDMA. The application of smart antenna has beendeveloped.
{"title":"Application of Smart Antenna in TD - SCDMA","authors":"Yang Xinghua","doi":"10.18063/WCT.V1I1.519","DOIUrl":"https://doi.org/10.18063/WCT.V1I1.519","url":null,"abstract":"With the rapid development of global communications business, future personal communication wireless mobile communicationtechnology has aroused great concern. Way to eliminate the impact of co-channel interference (CCI), multiple access interference (MAI)and multipath fading becomes a major factor in improving the performance of wireless mobile communication systems. The smart antennauses the digital signal processing technology to generate the spatial directional beam so that the antenna main beam is aligned with thedirection of arrival of the user signal. The side lobe or the zero point is aligned to the direction of the interfering signal to reach the fullefficient use of the mobile subscriber signal, thus remove or suppress the interference signal purpose. Compared with other increasinglydeep and mature interference removal technology, the application of smart antenna technology in mobile communication is even more in theascendant and showing great potential. One of the key technologies of the third generation mobile communication standard TD-SCDMAsystem submitted by our country is the intelligent antenna technology. The paper introduces the history and development of the smartantenna in detail, and deeply analyzes the application of the smart antenna in TD-SCDMA. The application of smart antenna has beendeveloped.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79513502","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}
Communication modernization is an important symbol of human societies as we enter into the information age. An importantproblem encountered in modern communication is interference. With the development of communication, the establishment of variouscommunication networks, making the limited frequency of resources more crowded, intertwined to the serious. How to ensure that thecommunication is effective, accurate and rapid in the harsh environment conditions in front of today's communications researchers is adifficult problem. As the mobile communication system must use wireless transmission technology in order to achieve the exchange ofinformation in the mobile, wireless transmission is vulnerable to a variety of other radio waves interference, a large number of interferencewill greatly affect the quality of network communications and system capacity. Anti-jamming technology with strong resistance, strongtechnical, difficult, practical and reliable high characteristics, in today's increasingly harsh electromagnetic environment, anti-jammingtechnology is particularly compelling. It can greatly improve the effectiveness and reliability of the communication system in thecommunication system. Today, anti-jamming technology has become the mainstream of radio communications technology, it is the mostclosely linked with the field of communications. This paper mainly discusses the interference problem of GSM system in mobilecommunication anti-jamming technology, including the interference type in GSM, the anti-interference ability of GSM itself and how tooptimize the network to achieve the purpose of anti-jamming, so as to meet the requirements of users System capacity while maintaininggood call quality.
{"title":"Anti-interference technology of communication system","authors":"Chunhai Lv","doi":"10.18063/WCT.V1I1.518","DOIUrl":"https://doi.org/10.18063/WCT.V1I1.518","url":null,"abstract":"Communication modernization is an important symbol of human societies as we enter into the information age. An importantproblem encountered in modern communication is interference. With the development of communication, the establishment of variouscommunication networks, making the limited frequency of resources more crowded, intertwined to the serious. How to ensure that thecommunication is effective, accurate and rapid in the harsh environment conditions in front of today's communications researchers is adifficult problem. As the mobile communication system must use wireless transmission technology in order to achieve the exchange ofinformation in the mobile, wireless transmission is vulnerable to a variety of other radio waves interference, a large number of interferencewill greatly affect the quality of network communications and system capacity. Anti-jamming technology with strong resistance, strongtechnical, difficult, practical and reliable high characteristics, in today's increasingly harsh electromagnetic environment, anti-jammingtechnology is particularly compelling. It can greatly improve the effectiveness and reliability of the communication system in thecommunication system. Today, anti-jamming technology has become the mainstream of radio communications technology, it is the mostclosely linked with the field of communications. This paper mainly discusses the interference problem of GSM system in mobilecommunication anti-jamming technology, including the interference type in GSM, the anti-interference ability of GSM itself and how tooptimize the network to achieve the purpose of anti-jamming, so as to meet the requirements of users System capacity while maintaininggood call quality.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82131400","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}
This article mainly describes the formation of various types of wireless LAN, as the current wireless LAN (Wireless LAN)technology can be very convenient to wireless network equipment and mobile devices, people can access the network resources at anytime,anywhere by communication Mobile, personalized and multimedia applications. In the continuous development of network technology,wireless LAN is also changing our way of life, we can access to internet in amusement park, hotel, airport station and other areas. And inschool, teachers and students in the dormitory can have communication through the wireless LAN layout. Wireless LAN also has manyadvantages and disadvantages, we need to understand the discovery of applications, this is the only way we can have a better life, learning,and work.
{"title":"Application of Wireless LAN Localization Technology","authors":"Fan Lili","doi":"10.18063/WCT.V1I1.520","DOIUrl":"https://doi.org/10.18063/WCT.V1I1.520","url":null,"abstract":"This article mainly describes the formation of various types of wireless LAN, as the current wireless LAN (Wireless LAN)technology can be very convenient to wireless network equipment and mobile devices, people can access the network resources at anytime,anywhere by communication Mobile, personalized and multimedia applications. In the continuous development of network technology,wireless LAN is also changing our way of life, we can access to internet in amusement park, hotel, airport station and other areas. And inschool, teachers and students in the dormitory can have communication through the wireless LAN layout. Wireless LAN also has manyadvantages and disadvantages, we need to understand the discovery of applications, this is the only way we can have a better life, learning,and work.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77696262","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}
In the 1990s, the development of program-controlled switches in our country has experienced the development process from thescratch; especially the successful development of large-scale program-controlled switches has brought great vitality to our informationindustry. This time, I mainly introduced to ZTE ZXJ10 program-controlled switchboard to design distributed modularization in programcontrolledswitch. ZXJ10 digital program-controlled switching system is distributed between modules, module classification control,centralized management of the open architecture, based on general computer platform, LAN technology as the support, client/server modeto control the basic form of structure, in order to make the system has flexible networking ability, strong call processing capability, highreliability, good compatibility and expansibility.
{"title":"Research on Design of Program - Controlled Switches","authors":"D. Xiaoyan","doi":"10.18063/WCT.V1I1.522","DOIUrl":"https://doi.org/10.18063/WCT.V1I1.522","url":null,"abstract":"In the 1990s, the development of program-controlled switches in our country has experienced the development process from thescratch; especially the successful development of large-scale program-controlled switches has brought great vitality to our informationindustry. This time, I mainly introduced to ZTE ZXJ10 program-controlled switchboard to design distributed modularization in programcontrolledswitch. ZXJ10 digital program-controlled switching system is distributed between modules, module classification control,centralized management of the open architecture, based on general computer platform, LAN technology as the support, client/server modeto control the basic form of structure, in order to make the system has flexible networking ability, strong call processing capability, highreliability, good compatibility and expansibility.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79927603","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}
Pub Date : 2016-09-25DOI: 10.14445/22312803/IJCTT-V39P102
K. Santhya, N. Sasirekha
A mobile ad hoc network (MANET) is a self-configuring, infrastructure-less network of mobile devices which is connected without any wires . In MANET the node can move in any direction independently. The main challenge in building a MANET is equipping each device to continuously maintain the information needed and to properly route traffic. So, these networks may operate by themselves or may be connected to the larger Internet . They may contain one or multiple and different transceivers between the nodes. Finally in a highly dynamic, autonomous topology . Vehicular Ad-hoc Networks (VANETs) are used cars and cars and roadside equipment. MANETS can be used for facilitating the collection of sensor data for data mining for a variety of applications such as air pollution monitoring and different types of architectures can be used for such applications.
{"title":"Power Heterogeneous MANET Using LVC Algorithm","authors":"K. Santhya, N. Sasirekha","doi":"10.14445/22312803/IJCTT-V39P102","DOIUrl":"https://doi.org/10.14445/22312803/IJCTT-V39P102","url":null,"abstract":"A mobile ad hoc network (MANET) is a self-configuring, infrastructure-less network of mobile devices which is connected without any wires . In MANET the node can move in any direction independently. The main challenge in building a MANET is equipping each device to continuously maintain the information needed and to properly route traffic. So, these networks may operate by themselves or may be connected to the larger Internet . They may contain one or multiple and different transceivers between the nodes. Finally in a highly dynamic, autonomous topology . Vehicular Ad-hoc Networks (VANETs) are used cars and cars and roadside equipment. MANETS can be used for facilitating the collection of sensor data for data mining for a variety of applications such as air pollution monitoring and different types of architectures can be used for such applications.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87670666","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}
Pub Date : 2016-04-21DOI: 10.14257/astl.2016.129.41
Jae-Woong Byun, Sooyeop Kim, Jaehun Sa, Sangphil Kim, Yongtae Shin, Jong-Bae Kim
Many practical communities are vigorously pursue do research topics that contribute to the Internet of Things (IoT). Now as sense, actuation, communication, and control become ever more urbane and in all places, there is significant overlap in these communities, now and again from slightly unlike perspectives. More support between communities is positive To supply a basis for discussing open research problems in IoT, a vision for how IoT could change the world in the far-flung future is first on hand Then, eight key research topics are enumerate and research problems within those topics are discussed.
{"title":"Smart City Implementation Models Based on IoT Technology","authors":"Jae-Woong Byun, Sooyeop Kim, Jaehun Sa, Sangphil Kim, Yongtae Shin, Jong-Bae Kim","doi":"10.14257/astl.2016.129.41","DOIUrl":"https://doi.org/10.14257/astl.2016.129.41","url":null,"abstract":"Many practical communities are vigorously pursue do research topics that contribute to the Internet of Things (IoT). Now as sense, actuation, communication, and control become ever more urbane and in all places, there is significant overlap in these communities, now and again from slightly unlike perspectives. More support between communities is positive To supply a basis for discussing open research problems in IoT, a vision for how IoT could change the world in the far-flung future is first on hand Then, eight key research topics are enumerate and research problems within those topics are discussed.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88669827","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}
Pub Date : 2014-10-15DOI: 10.17148/ijireeice.2014.0210010
M. Nivetha, MR. S.SIVARAMAKRISHNAN
This paper is based on the analysis of the various algorithms in cryptography technique. With the fast changing technologies in today, more data are generated and transmitted. If the confidentiality of the information is very high, it should be protected. Cryptography is used to protect the personal or important data from the unauthorized people who try to access it . Cryptography is widely used by government and intelligence agencies around the world for the transmission of information. It can be either online offline. In this paper various cryptography algorithms are studied and compared.
{"title":"A COMPARATIVE ANALYSIS OF CRYPTOGRAPHY ALGORITHMS","authors":"M. Nivetha, MR. S.SIVARAMAKRISHNAN","doi":"10.17148/ijireeice.2014.0210010","DOIUrl":"https://doi.org/10.17148/ijireeice.2014.0210010","url":null,"abstract":"This paper is based on the analysis of the various algorithms in cryptography technique. With the fast changing technologies in today, more data are generated and transmitted. If the confidentiality of the information is very high, it should be protected. Cryptography is used to protect the personal or important data from the unauthorized people who try to access it . Cryptography is widely used by government and intelligence agencies around the world for the transmission of information. It can be either online offline. In this paper various cryptography algorithms are studied and compared.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73901091","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}
IEEE 802.11 MAC having two methods for medium reservation. 1) virtual carrier sensing and 2) physical carrier sensing. VCS having many drawbacks in wireless ad hoc networks. PCS mechanism can replace the virtual carrier sensing in most practical applications. But choice of PCS threshold plays vital role in ad hoc .networks. Choice of PCS threshold is tradeoff between the throughput and spatial reuse. In this paper we present practical experiments for to see the PCS threshold effects on network throughput.
{"title":"Choosing effects of PHYSICAL CARRIER SENSING in Wireless Adhoc Networks","authors":"T. Shankar, S. Shanmugavel, Y. Sandeep","doi":"10.18000/ijies.30066","DOIUrl":"https://doi.org/10.18000/ijies.30066","url":null,"abstract":"IEEE 802.11 MAC having two methods for medium reservation. 1) virtual carrier sensing and 2) physical carrier sensing. VCS having many drawbacks in wireless ad hoc networks. PCS mechanism can replace the virtual carrier sensing in most practical applications. But choice of PCS threshold plays vital role in ad hoc .networks. Choice of PCS threshold is tradeoff between the throughput and spatial reuse. In this paper we present practical experiments for to see the PCS threshold effects on network throughput.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78125011","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}
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