Pub Date : 1996-05-05DOI: 10.1109/ICCT.1996.545127
E. Gotwald, A. Felder, H.-M. Reinz, M. Moller, M. Wurzer, B. Stegmuller, M. Plihal, J. Bauer, F. Au
The future demand for extremely high data rate systems will be governed by the need to accommodate increasing traffic. The goal of our current project is a demonstrator for a 40 Gb/s TDM optical transmission system in 1998, whose electrical components are based on a Si and SiGe bipolar laboratory technologies using 0.6 /spl mu/m lithography.
{"title":"Towards a 40 Gb/s electrical time division multiplexed optical transmission system","authors":"E. Gotwald, A. Felder, H.-M. Reinz, M. Moller, M. Wurzer, B. Stegmuller, M. Plihal, J. Bauer, F. Au","doi":"10.1109/ICCT.1996.545127","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545127","url":null,"abstract":"The future demand for extremely high data rate systems will be governed by the need to accommodate increasing traffic. The goal of our current project is a demonstrator for a 40 Gb/s TDM optical transmission system in 1998, whose electrical components are based on a Si and SiGe bipolar laboratory technologies using 0.6 /spl mu/m lithography.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125210164","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545179
L. Xiaokang, L. Yihan, M. Shiwen, X. Yi
This paper presents a narrowband asynchronous transfer mode (narrowband ATM or NATM) network and its differences from ATM specified by ITU. The technical characteristics, provided services and its applications are also introduced.
{"title":"Narrowband ATM network","authors":"L. Xiaokang, L. Yihan, M. Shiwen, X. Yi","doi":"10.1109/ICCT.1996.545179","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545179","url":null,"abstract":"This paper presents a narrowband asynchronous transfer mode (narrowband ATM or NATM) network and its differences from ATM specified by ITU. The technical characteristics, provided services and its applications are also introduced.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127786066","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545015
L. Chang, R. Ziegler, R. Malkemes, A. Noerpel
This paper presents the TDD version of the PACS (Personal Access Communications System) designed to be used for wireless Centrex, or PBX applications as well as private residential applications. A set of radio air interface protocols is described which is intended to operate in the 1920 to 1930 MHz unlicensed PCS (UPCS) frequency band allocated by the US FCC for isochronous operation, intended for voice and data circuit based communications. The protocol is based on the FDD version of the PACS radio air interface protocol which is to operate in the licensed spectrum between 1850 and 1990 MHz. TDD version of PACS conforms to the new FCC Part 15, Subpart D, etiquette and is compliant with the rules of the FCC Memorandum Opinion and Order, June 9, 1994.
本文介绍了TDD版本的PACS(个人访问通信系统)，设计用于无线Centrex或PBX应用以及私人住宅应用。描述了一套无线电空中接口协议，该协议旨在在1920至1930 MHz未经许可的PCS (UPCS)频带中运行，该频带由美国FCC分配用于等时操作，用于基于语音和数据电路的通信。该协议基于PACS无线电空中接口协议的FDD版本，该协议将在1850至1990 MHz之间的许可频谱中运行。TDD版本的PACS符合新的FCC Part 15，子Part D，礼仪，并符合1994年6月9日FCC备忘录意见和命令的规则。
{"title":"PACS for in-building wireless telephony and data","authors":"L. Chang, R. Ziegler, R. Malkemes, A. Noerpel","doi":"10.1109/ICCT.1996.545015","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545015","url":null,"abstract":"This paper presents the TDD version of the PACS (Personal Access Communications System) designed to be used for wireless Centrex, or PBX applications as well as private residential applications. A set of radio air interface protocols is described which is intended to operate in the 1920 to 1930 MHz unlicensed PCS (UPCS) frequency band allocated by the US FCC for isochronous operation, intended for voice and data circuit based communications. The protocol is based on the FDD version of the PACS radio air interface protocol which is to operate in the licensed spectrum between 1850 and 1990 MHz. TDD version of PACS conforms to the new FCC Part 15, Subpart D, etiquette and is compliant with the rules of the FCC Memorandum Opinion and Order, June 9, 1994.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"160 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129023415","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545141
Z. Tan, Z. Yanrong
There are two kinds of interference in a communication system: multipath and multiaddress interference. Using A RAKE receiver in a direct sequence spread spectrum system is an efficient method of anti-multipath interference, and multistage interference cancellation technology we can be used for anti-multiaddress interference. Combining a RAKE receiver with multistage interference cancellation, multipath and multiaddress interference can be removed at the same time.
{"title":"Antiing multipath multiaddress interference technology in spread spectrum communications","authors":"Z. Tan, Z. Yanrong","doi":"10.1109/ICCT.1996.545141","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545141","url":null,"abstract":"There are two kinds of interference in a communication system: multipath and multiaddress interference. Using A RAKE receiver in a direct sequence spread spectrum system is an efficient method of anti-multipath interference, and multistage interference cancellation technology we can be used for anti-multiaddress interference. Combining a RAKE receiver with multistage interference cancellation, multipath and multiaddress interference can be removed at the same time.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133582330","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545009
Zhang Xiaoru, Zeng Lie-guang
This paper introduces, in some detail, the bit interleaved parity (BIP) codes adopted in SDH for error monitoring, and derives the general relationship equation between the BIP error block probability and bit error rate (BER) in the presence of Poisson distribution errors. Some typical curves of the BIP error block probability versus the BER in SDH are also presented.
{"title":"Performance analysis of BIP codes in SDH on Poisson distribution of errors","authors":"Zhang Xiaoru, Zeng Lie-guang","doi":"10.1109/ICCT.1996.545009","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545009","url":null,"abstract":"This paper introduces, in some detail, the bit interleaved parity (BIP) codes adopted in SDH for error monitoring, and derives the general relationship equation between the BIP error block probability and bit error rate (BER) in the presence of Poisson distribution errors. Some typical curves of the BIP error block probability versus the BER in SDH are also presented.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133647779","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545231
Diao Shuo, Z. Yaoxue
The increasing use of multimedia communication applications is exhausting the resources of communication networks, such as bandwidth and buffers. It has become very important to efficiently allocate network resources based on the required quality of service provided by a network. This paper proposes a dual priority queue algorithm which allocates and schedules the buffer resources of an ATM switch. The algorithm makes the network meet the scales of user quality of service requirements, such as communication delay or loss rate, and keeps a high utilization of network resources. Simulation results and analysis of the algorithm are also discussed to show the efficiency of the algorithm.
{"title":"A dual priority queue algorithm for quality of service control in high speed networks","authors":"Diao Shuo, Z. Yaoxue","doi":"10.1109/ICCT.1996.545231","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545231","url":null,"abstract":"The increasing use of multimedia communication applications is exhausting the resources of communication networks, such as bandwidth and buffers. It has become very important to efficiently allocate network resources based on the required quality of service provided by a network. This paper proposes a dual priority queue algorithm which allocates and schedules the buffer resources of an ATM switch. The algorithm makes the network meet the scales of user quality of service requirements, such as communication delay or loss rate, and keeps a high utilization of network resources. Simulation results and analysis of the algorithm are also discussed to show the efficiency of the algorithm.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134417319","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545008
S. S. Abeysekera, A. Cantoni
Clock rate adaptation in digital transmission networks such as synchronous optical network (SONET) and synchronous digital hierarchy (SDH), is necessary for two reasons. Firstly, it provides timing transparency for tributaries that are multiplexed at different levels of PDH (pulse stuffing); secondly, it provides timing transparency for transporting the tributaries within the STM frame of the SDH (pointer adjustment). The clock rate adaptation circuits of network synchronizers work by controlling the output data rate by pulse stuffing. The technique of stuff threshold modulation (ST-Mod) is usually used to reduce the waiting time jitter resulting from to pulse stuffing. For a given set of data transmission conditions, the selection of a suitable ST-Mod dither sequence is addressed. It has been shown previously that if the ST-Mod sequence is selected as a sawtooth sequence then it is possible to choose a dither sequence which is optimum for the given operating condition. It is shown that using either a random sequence or a modified wave sequence it is possible to obtain a near optimal filter performance for given synchronizer-desynchronizer (SYN-DES) characteristics.
{"title":"Selection of stuff threshold modulation dither sequences for known SYN-DES operating conditions","authors":"S. S. Abeysekera, A. Cantoni","doi":"10.1109/ICCT.1996.545008","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545008","url":null,"abstract":"Clock rate adaptation in digital transmission networks such as synchronous optical network (SONET) and synchronous digital hierarchy (SDH), is necessary for two reasons. Firstly, it provides timing transparency for tributaries that are multiplexed at different levels of PDH (pulse stuffing); secondly, it provides timing transparency for transporting the tributaries within the STM frame of the SDH (pointer adjustment). The clock rate adaptation circuits of network synchronizers work by controlling the output data rate by pulse stuffing. The technique of stuff threshold modulation (ST-Mod) is usually used to reduce the waiting time jitter resulting from to pulse stuffing. For a given set of data transmission conditions, the selection of a suitable ST-Mod dither sequence is addressed. It has been shown previously that if the ST-Mod sequence is selected as a sawtooth sequence then it is possible to choose a dither sequence which is optimum for the given operating condition. It is shown that using either a random sequence or a modified wave sequence it is possible to obtain a near optimal filter performance for given synchronizer-desynchronizer (SYN-DES) characteristics.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134554688","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545213
R. Lebouquin-Jeannes, G. Faucon, B. Ayad
This paper proposes a two-microphone technique for noise reduction and acoustic echo cancellation (AEC) in hands-free communications. Contrary to the standard cascaded structure, this new structure includes a preprocessing which allows to reduce the noise influence on the AEC system. The efficiency of the new structure is proved through objective measures and listening tests.
{"title":"A two-microphone approach for speech enhancement in hands-free communications","authors":"R. Lebouquin-Jeannes, G. Faucon, B. Ayad","doi":"10.1109/ICCT.1996.545213","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545213","url":null,"abstract":"This paper proposes a two-microphone technique for noise reduction and acoustic echo cancellation (AEC) in hands-free communications. Contrary to the standard cascaded structure, this new structure includes a preprocessing which allows to reduce the noise influence on the AEC system. The efficiency of the new structure is proved through objective measures and listening tests.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"306 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133199918","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 : 1996-05-05DOI: 10.1109/ICCT.1996.545208
Lei Youxun, Shi Yi, Meng Luoming, Chen Junliang
We present a method for the service independent configuration of user service data in an intelligent network. We make use of the management information model of the TMN in the method of modeling the user service data of the IN service. We take the user service data as the managed object, the service management function (SMF) as the managing system and the SDF as the managed system respectively. By the CMIP-like operations between the SMF and the SDF, we implement a service independent configuration, retrieval, modification and deletion of the user service data. With the cooperation of a dynamic configuration of the service logic, this method can be used to deploy new service dynamically.
{"title":"The design and implementation of service independent configuration of user service data in intelligent network","authors":"Lei Youxun, Shi Yi, Meng Luoming, Chen Junliang","doi":"10.1109/ICCT.1996.545208","DOIUrl":"https://doi.org/10.1109/ICCT.1996.545208","url":null,"abstract":"We present a method for the service independent configuration of user service data in an intelligent network. We make use of the management information model of the TMN in the method of modeling the user service data of the IN service. We take the user service data as the managed object, the service management function (SMF) as the managing system and the SDF as the managed system respectively. By the CMIP-like operations between the SMF and the SDF, we implement a service independent configuration, retrieval, modification and deletion of the user service data. With the cooperation of a dynamic configuration of the service logic, this method can be used to deploy new service dynamically.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133419623","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 : 1996-05-05DOI: 10.1109/ICCT.1996.544992
T. L. Tapp, Xiao-an Wang, S. Wicker
Narrowband mobile data networks often use BCH codes for error correction. All currently existing efficient decoders for these codes are hard decision decoders (HDDs). Efficient, trellis-based, soft decision decoders (SDDs) for these codes are presented. The SDDs can simultaneously outperform their hard decision counterparts in both reliability and throughput. They also have a variable threshold for generating retransmission requests, which allows the system to dynamically vary the balance between reliability and throughput.
{"title":"Soft decision hybrid-ARQ error control for mobile data networks","authors":"T. L. Tapp, Xiao-an Wang, S. Wicker","doi":"10.1109/ICCT.1996.544992","DOIUrl":"https://doi.org/10.1109/ICCT.1996.544992","url":null,"abstract":"Narrowband mobile data networks often use BCH codes for error correction. All currently existing efficient decoders for these codes are hard decision decoders (HDDs). Efficient, trellis-based, soft decision decoders (SDDs) for these codes are presented. The SDDs can simultaneously outperform their hard decision counterparts in both reliability and throughput. They also have a variable threshold for generating retransmission requests, which allows the system to dynamically vary the balance between reliability and throughput.","PeriodicalId":395678,"journal":{"name":"Proceedings of International Conference on Communication Technology. ICCT '96","volume":"269-270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131696461","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：