ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384)最新文献_第3页

Optimizing frequency planning in the GSM system GSM系统频率规划优化

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.732842

A. De Pasquale, N. P. Magnani, P. Zanini

引用次数: 15

Performance of backward handoff in wireless ATM 无线ATM中反向切换的性能研究

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733025

I. Widjaja, A. Cui, J. G. Kim

引用次数: 0

ARQ protocol for infrared wireless LANs: packet-level ACK or no-packet-level ACK? 红外无线局域网的ARQ协议:包级ACK或无包级ACK?

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733693

T. Ozugur, M. Naghshineh, P. Kermani, C.M. Olsen, B. Rezvani, J. Copeland

引用次数: 6

Evaluation of tracking local strategies in wireless networks with stochastic activity networks 随机活动无线网络中局部跟踪策略的评价

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733063

Jorge Mataix Oltra, V. Casares, Pablo

{"title":"Evaluation of tracking local strategies in wireless networks with stochastic activity networks","authors":"Jorge Mataix Oltra, V. Casares, Pablo","doi":"10.1109/ICUPC.1998.733063","DOIUrl":"https://doi.org/10.1109/ICUPC.1998.733063","url":null,"abstract":"A novel approach using stochastic activity networks (SAN) as a performance evaluation tool for several mobility tracking algorithms in personal communication networks (PCN) is presented. It is shown that SAN offers a systematic and flexible graphical tool to model the dynamics of the PCNs. We were dealing with location update and paging procedures. The flexibility of SAN tool allows a non-complex graphical representation of these procedures, and therefore, a very easy way to analyse and derive the system performance. Two sets of location update procedures are analysed, the local or dynamic strategies and new hybrid strategies between movement and distance. These set of strategies are envisaged for future cellular PCN, where micro and pico cells are the standard cell layout coverage in urban environments. UltraSAN is also an excellent tool for modelling and analysis of multi-step or selective paging strategies. An important contribution of this new methodology is its flexibility and adaptability to different scenarios and the required computational effort is bounded, with the major characteristic that the complexity of the model increases slightly with growing system complexity.","PeriodicalId":341069,"journal":{"name":"ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384)","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116983691","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: 0

Trellis-coded modulation and transmit diversity: design criteria and performance evaluation 栅格编码调制和发射分集:设计标准和性能评估

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733058

Siavash M. Alamoutil, V. Tarokh, P. Poon

引用次数: 139

Spectral spreading signals for asynchronous CDMA 用于异步CDMA的频谱扩展信号

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733655

E. Del Re, R. Fantacci, L. Ronga

引用次数: 0

Comparison of cell search methods for asynchronous wideband CDMA cellular system 异步宽带CDMA蜂窝系统的小区搜索方法比较

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733622

J. Nystrom, K. Jamal, Y. Wang, R. Esmailzadeh

{"title":"Comparison of cell search methods for asynchronous wideband CDMA cellular system","authors":"J. Nystrom, K. Jamal, Y. Wang, R. Esmailzadeh","doi":"10.1109/ICUPC.1998.733622","DOIUrl":"https://doi.org/10.1109/ICUPC.1998.733622","url":null,"abstract":"Cell search within a CDMA system consists of the tasks carried out by a mobile station in order to find, identify, and synchronize to a new cell. We distinguish between initial cell search, where the mobile station after power on searches for the cell to which it has the lowest path loss, and cell search carried out for maintaining connection to the network in idle mode and to find handover candidates in active mode. In this paper, we focus on initial cell search. In cellular systems employing asynchronous base stations, no common time reference exists. Consequently, base stations cannot be identified by their relative time offset. One way to facilitate cell search in an asynchronous system is to have each cell transmitting a unique downlink scrambling code. The disadvantage is that the mobile station must now search for a large number of different scrambling codes, which leads to significantly higher complexity compared to the case of a synchronized system. One approach to cell search in an asynchronous system has been proposed for ETSI WCDMA. In this case, each cell uses a unique downlink scrambling code of length 10 ms. The set of scrambling codes is divided into groups with a limited number of codes in each group. In addition, each cell periodically transmits two special orthogonal code words, known as the primary and secondary synchronization codes, PSC and SSC respectively. In ETSI WCDMA, as well as in our work, orthogonal Gold codes are used for the PSC and SSC codes.","PeriodicalId":341069,"journal":{"name":"ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384)","volume":"343 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123976027","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: 16

On noncoherent sequence detection of continuous phase modulations 连续相位调制的非相干序列检测

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733674

G. Colavolpe, R. Raheli

引用次数: 7

Wireless communication characteristics for tunnels with and without traffic 有和无交通隧道的无线通信特性

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.732815

Shi-Cheng Hung, C. Chiu, Chien-Hung Chen

引用次数: 4

Parallel concatenated coding schemes for wireless application 无线应用的并行连接编码方案

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI: 10.1109/ICUPC.1998.733626

S. Benedetto, R. Garello, G. Montorsi

引用次数: 2