Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications最新文献_第2页

Application of channel segregation for automatic channel selection free from intermodulation interference 信道隔离在不受互调干扰的自动信道选择中的应用

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.568481

Y. Akaiwa, H. Furukawa, T. Onishi

引用次数: 2

Comparison between elimination yield non pre-emptive priority multiple access (EY-NPMA) and dynamic TDMA (D-TDMA) 消除产量非抢占式优先多址(EY-NPMA)与动态TDMA (D-TDMA)的比较

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.567478

C. Apostolas, R. Tafazolli, B. Evans

引用次数: 5

Mobility traffic analysis for PACS using various subscriber profiles 使用各种用户配置文件的PACS移动流量分析

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.567531

J. Wey, Wei-Pang Yang, Yi-Bing Lin

{"title":"Mobility traffic analysis for PACS using various subscriber profiles","authors":"J. Wey, Wei-Pang Yang, Yi-Bing Lin","doi":"10.1109/PIMRC.1996.567531","DOIUrl":"https://doi.org/10.1109/PIMRC.1996.567531","url":null,"abstract":"The signaling traffic between access managers (AMs) and home location register (HLR) are SS7 signaling messages in the personal access communication system (PACS) system. These signaling messages are for the transportation of subscriber unit (SU) registration, call origination, and call delivery, and also for authentication in these procedures. The signaling traffic is referred to mobility management traffic. In addition, the performance of mobility management traffic plays an essential role in the performance of the whole PACS system network. In this paper, we propose an M/G/1 traffic analysis on the PACS mobility traffic between AMs and HLR by using the mobile, business, and residential subscriber profiles. In addition, four performance metrics are investigated to observe the mobility characteristics with various subscriber profiles, which include waiting times at the AM and HLR average query response times, average update response times, and the expected numbers of messages per second exchanged between the AM and HLR. Finally, some observations and comments are made for the PACS system.","PeriodicalId":206655,"journal":{"name":"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123953922","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: 3

Performance simulations of coded slow frequency hopping M-ary FSK with sub-optimal soft decision metrics in partial band interference 具有次优软判决指标的慢跳频编码FSK在部分频带干扰下的性能仿真

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.568452

A. Pouttu, M. Juntti

引用次数: 2

Delay spread profiles and receiver performance in a dense multipath environment 密集多径环境下的延迟扩展概况和接收机性能

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.567509

I. Bar-David, R. Krishnamoorthy

{"title":"Delay spread profiles and receiver performance in a dense multipath environment","authors":"I. Bar-David, R. Krishnamoorthy","doi":"10.1109/PIMRC.1996.567509","DOIUrl":"https://doi.org/10.1109/PIMRC.1996.567509","url":null,"abstract":"The design and performance of indoor communication systems are strongly dependent on the delay spread in the impulse response of the channel. The delay spread is due to the abundance of the multipath reflections in the indoor environment. Judicious system design can derive benefit from the availability of the multipath signal to improve the system performance. Such potential improvement is due mainly to the fact that the various multipath components are very weakly dependent on each other, while fading, and a natural temporal diversity situation occurs. For system performance evaluation it is desirable to have an estimate of how the delay spread varies while the received power decreases with increasing transmitter-receiver distance. The simplest possible model that retains the essentials of a dense multipath environment is proposed and analyzed. It assumes that the direct path is blocked and that only scattered signals are received. A small ellipse of focal distance r/sub min/ about the transmitter and receiver is assumed to be free of scatterers. The scatterers are assumed to be Lambertian uncorrelated point-scatterers, uniformly distributed in 2-dimensional space. Secondary reflections are neglected and primary reflections are assumed not to be hampered by the presence of the other point scatterers. This is basically the wide sense stationary uncorrelated scatterers (WSSUS) model often used in communications analysis.","PeriodicalId":206655,"journal":{"name":"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121675780","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: 5

The effect of path diversity (RAKE) on link reliability in CDMA cellular systems-a realistic assessment of system capacity 路径分集(RAKE)对CDMA蜂窝系统链路可靠性的影响——一种现实的系统容量评估方法

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.568459

J. S. Lee, L. Miller

引用次数: 1

On the management of end-to-end multimedia and multibearer connections in a personal communications system 个人通信系统中端到端多媒体和多承载连接的管理

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.568469

A. Iera, S. Marano, A. Molinaro

引用次数: 0

A simple mapping from C/I to FER and BER for a GSM type of air-interface 从C/I到GSM类型空中接口的FER和BER的简单映射

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.567519

J. Wigard, P. Mogensen

{"title":"A simple mapping from C/I to FER and BER for a GSM type of air-interface","authors":"J. Wigard, P. Mogensen","doi":"10.1109/PIMRC.1996.567519","DOIUrl":"https://doi.org/10.1109/PIMRC.1996.567519","url":null,"abstract":"To evaluate the performance of a mobile radio system, both network and link quality aspects have to be evaluated. A network simulator is often used to find the influence of different system parameters, such as DTX, frequency hopping and power control. To complete the evaluation, a link simulator has to be integrated in the network simulator, so that each radio link can be simulated. An obvious method to integrate the radio link quality aspects with the network simulator is to use the output of the network part of the simulator as input for an integrated link simulator. This will however lead to time consuming simulations, In this paper a simpler method is presented, which leads to a shorter simulation time. The output of the network part of the simulator, expressed in signal to interference (C/I) values, is used as input for look-up tables, which lead to a BER and a frame erasure rate (FER) for each radio link. These look-up tables are depending on the hopping pattern and channel profile and they are also receiver dependent. The results of the mapping method are good, except for a few situations, where the prediction of the BER goes wrong. This happens when sequential hopping with a few frequencies is used and the speed of the mobile user is low. In general the presented predictions are within 1 dB (FER) and within 0.2 dB (BER).","PeriodicalId":206655,"journal":{"name":"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131359812","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: 32

Comparing algebraic geometric and Reed-Solomon codes for FH-CDMA applications FH-CDMA应用中代数几何码与Reed-Solomon码的比较

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.568453

F. M. Assis, M. Alencar

引用次数: 0

A hashing scheme for phone number portability in PCS systems with ATM backbones 带ATM主干网的PCS系统中电话号码可移植性的哈希方案

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI: 10.1109/PIMRC.1996.567464

R. Jain, S. Rajagopalan, L. Chang

{"title":"A hashing scheme for phone number portability in PCS systems with ATM backbones","authors":"R. Jain, S. Rajagopalan, L. Chang","doi":"10.1109/PIMRC.1996.567464","DOIUrl":"https://doi.org/10.1109/PIMRC.1996.567464","url":null,"abstract":"Current cellular subscribers have a geographic phone number (e.g. in AMPS and US digital cellular systems) or a number which contains the network provider's identity (e.g. in GSM), and whenever subscribers register or receive (and possibly, originate) a call, a home location register (HLR) database has to be queried. A special feature of next generation wireless access service will be to support PCS and wireless subscribers with portable personal numbers, or non-geographic phone numbers (NGPN), that do not indicate the service provider or HLR database serving the user. In addition the global title translation (GTT) function that converts the subscriber's number to an HLR database address may not be available when the wired backbone is an ATM network. Thus a key function required will be to translate an NGPN to the ID of the HLR which serves the subscriber, a process we call NGPN translation. (Note that the same functionality is also needed for subscribers with local, portable phone numbers.) We discuss the requirements of NGPN translation and some alternative schemes. We propose a scheme for fast, efficient, scalable and flexible NGPN translation which applies ideas of dynamic hashing, caching, and indirection. The scheme uses a hash function in the visiting location registers (VLR) (or serving SCP) and a set of distributed translation servers which store the NGPN-to-HLR mapping.","PeriodicalId":206655,"journal":{"name":"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130066378","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: 4