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Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)最新文献

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An adaptive traffic control scheme for hierarchically structured CDMA cellular systems 一种分层结构CDMA蜂窝系统的自适应流量控制方案
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.883256
Jongin Kim, Youngnam Han, Jihwan Ahn
{"title":"An adaptive traffic control scheme for hierarchically structured CDMA cellular systems","authors":"Jongin Kim, Youngnam Han, Jihwan Ahn","doi":"10.1109/VETECF.2000.883256","DOIUrl":"https://doi.org/10.1109/VETECF.2000.883256","url":null,"abstract":"The hierarchical cell structure (HCS) describes a system where at least two types of cells (e.g. macrocell and microcell) operate one upon another. Due to increasing demand in the capacity of future cellular systems, HCS is expected to be an increasingly popular trend in cellular system design. We have proposed a traffic control mechanism for CDMA HCS, which dynamically adapts to a varying traffic environment by redistributing traffic between the macrocell and microcell. The proposed scheme dynamically adjusts the coverage area of the microcell to maintain a required signal to interference ratio in both the microcell and macrocell. The performances were measured in terms of the call blocking probability and call failure probability. The call blocking rate improves when the system is lightly loaded and the loads are unbalanced between the macrocell and microcell. Performance improvements were significant in terms of the call failure rate.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126036177","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
Evaluation of mobile ad-hoc network techniques in a cellular network 蜂窝网络中移动自组织网络技术的评价
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.886265
C. Wijting, R. Prasad
{"title":"Evaluation of mobile ad-hoc network techniques in a cellular network","authors":"C. Wijting, R. Prasad","doi":"10.1109/VETECF.2000.886265","DOIUrl":"https://doi.org/10.1109/VETECF.2000.886265","url":null,"abstract":"A mobile ad hoc network (MAN) consists of mobile nodes, which are free to move around arbitrarily. These mobile nodes incorporate routing functionality, due to which a backbone network is no longer essential. The ad hoc topology may change with time as the nodes move or adjust their transmission and reception parameters. A MAN is an autonomous system, which may have gateways to a fixed network. This paper studies the performance of some routing protocols, developed for MAN networks, namely ad-hoc on demand distance vector, dynamic source routing, destination-sequenced distance vector and temporally-ordered routing algorithm. Finally their application in a cellular environment is discussed and a hybrid system applying both MAN and cellular access is proposed.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126087121","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: 20
Outage probability of a multicarrier DS/CDMA system with adaptive antenna array 自适应天线阵列多载波DS/CDMA系统的中断概率
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.886848
J. Kim
{"title":"Outage probability of a multicarrier DS/CDMA system with adaptive antenna array","authors":"J. Kim","doi":"10.1109/VETECF.2000.886848","DOIUrl":"https://doi.org/10.1109/VETECF.2000.886848","url":null,"abstract":"The outage performance and capacity are discussed and simulated for a multicarrier DS/CDMA system in a Nakagami fading channel. It is confirmed that the adaptive antenna array is a very efficient approach to improve the system capacity of multicarrier DS/CDMA system. The results in this paper can be applicable to receiver design for future generation mobile communication systems including IMT-2000 system.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"41 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114129725","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
Metro-North Railroad telecommunications infrastructure project 城北铁路电信基础设施项目
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.883238
R. Staley, S. Weiss
{"title":"Metro-North Railroad telecommunications infrastructure project","authors":"R. Staley, S. Weiss","doi":"10.1109/VETECF.2000.883238","DOIUrl":"https://doi.org/10.1109/VETECF.2000.883238","url":null,"abstract":"Metropolitan Transportation Authority Metro-North Railroad (MTA MNR) is one of the largest commuter line in the United States, providing more than 200,000 customer trips each weekday and some 62,000,000 trips per year. MTA MNR has an existing voice and data communications infrastructure consisting of older fiber optic equipment, copper cable plant and leased lines used for voice and data transmission services that are central to the day-to-day operations of the Railroad. The existing infrastructure has exceeded its useful service life, and in some cases reliability of certain network elements is poor. To accommodate existing and projected voice and data communications requirements of the railroad a hybrid telecommunications network has been engineered combining several widely deployed technologies. The network design is standards-based and provides a scalable platform that will provide a migration path for the future. This paper focuses upon the design process used at MNR and the rationale behind key decisions reached by the design team that led to the selection of the technologies and topologies utilized in this novel hybrid network.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121259656","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
Security architecture for wireless residential networks 无线住宅网络的安全体系结构
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.886156
P. Krishnamurthy, J. Kabara
{"title":"Security architecture for wireless residential networks","authors":"P. Krishnamurthy, J. Kabara","doi":"10.1109/VETECF.2000.886156","DOIUrl":"https://doi.org/10.1109/VETECF.2000.886156","url":null,"abstract":"Adoption of residential networking is expected to accelerate in the next few years with wireless networking being by far the most popular technology because of its attractive features, such as ease of use. However, easy access to the transmitted information and the heterogeneity of devices on the network result in security problems since the devices have diverse security requirements and employ a variety of protocols. In this paper, we provide an overview of security issues in wireless residential networks and suggest a security architecture based on a classification of security services, containment and algorithm agility.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121047894","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: 13
Blind multiuser detection in multipath CDMA channels with unknown correlated noise 具有未知相关噪声的多径CDMA信道盲多用户检测
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.883268
S. Buzzi, H. Poor
{"title":"Blind multiuser detection in multipath CDMA channels with unknown correlated noise","authors":"S. Buzzi, H. Poor","doi":"10.1109/VETECF.2000.883268","DOIUrl":"https://doi.org/10.1109/VETECF.2000.883268","url":null,"abstract":"We deal with the problem of blind multiuser detection for DS/CDMA systems operating over fading dispersive channels and in the presence of additive Gaussian noise with unknown temporal correlation function. Such a problem has been addressed by Wang et al. (see ibid. vol.44, p.677-91, 1998 and IEEE Trans. on Circuits and Systems II: Analog and Digital Signal Processing, vol.46, p.886-95, 1999) and solved by employing a receiver with two well-separated antennas, such that the noise is spatially uncorrelated. A new method, which enables blind multiuser detection in correlated noise with just one antenna (and can be thus implemented in mobile transceivers), is here proposed. The effectiveness of the new procedure is tested through computer simulations, and its performance compared to that of the algorithms developed by Wang et al.; numerical results demonstrate that the newly proposed method, while relying on halved hardware resources, incurs a performance loss of few dBs with respect to the two-antennas based procedures.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123750778","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
Investigation of 3rd generation mobile communication RACH transmission 第三代移动通信RACH传输研究
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.887092
Che-Li Lin
{"title":"Investigation of 3rd generation mobile communication RACH transmission","authors":"Che-Li Lin","doi":"10.1109/VETECF.2000.887092","DOIUrl":"https://doi.org/10.1109/VETECF.2000.887092","url":null,"abstract":"In this paper, we investigate the random access channel (RACH) transmission in the 3rd generation mobile communication based on the specification developed within 3rd Generation Partnership Project (3GPP/sup TM/). Because there are messages with different QoS requirements, they are assigned with different access service classes (ASC). We compare different resource allocation methods and investigate the influence of the number of RACH processing units in a base transceiver station (BTS) on the performance of the overall system.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121587839","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: 17
A prioritized random access with discriminative power ramping step size 具有判别幂跃步长的优先随机访问
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.886123
Hyu-Dae Kim, Sung-Hong Wie, D. Cho
{"title":"A prioritized random access with discriminative power ramping step size","authors":"Hyu-Dae Kim, Sung-Hong Wie, D. Cho","doi":"10.1109/VETECF.2000.886123","DOIUrl":"https://doi.org/10.1109/VETECF.2000.886123","url":null,"abstract":"Power ramping makes the access more likely to succeed in a contention, so power ramping can be modified to support multi-class services in a random access channel. In this paper, we introduce discriminative router ramping into a slotted-ALOHA channel and 3GPP (Third Generation Partnership Project) common packet channel. The proposed scheme serves the high-priority service more rapidly and more efficiently with few defects in both channels.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125185893","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: 6
Dynamic rate control based on interference and transmission power in 3GPP WCDMA system 基于干扰和发射功率的3GPP WCDMA系统动态速率控制
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.886852
Gyung-Ho Hwang, D. Cho
{"title":"Dynamic rate control based on interference and transmission power in 3GPP WCDMA system","authors":"Gyung-Ho Hwang, D. Cho","doi":"10.1109/VETECF.2000.886852","DOIUrl":"https://doi.org/10.1109/VETECF.2000.886852","url":null,"abstract":"We propose a dynamic rate control method for throughput enhancement and different QoS support of each user in the 3GPP WCDMA system using the variable spreading factor of the physical channel specification. We focus on the uplink rather than the downlink for the reason that the uplink resource is not used effectively by the multiple access. The transmission rate of each user is controlled according to the user's priority and transmission power. Also, the interference level of the other cell is considered in the case of call admission and increased transmission rate. The performance of the proposed rate control method is compared with other methods by simulation. The simulation results show proposed that the scheme has a high throughput achievement and support proper differentiation according to the user's QoS.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130125063","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: 9
Performance of soft-output space-time equalization for EGPRS EGPRS软输出时空均衡性能研究
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152) Pub Date : 2000-09-24 DOI: 10.1109/VETECF.2000.883275
C. Luschi, A. M. Kuzminskiy, P. Strauch, B. Mulgrew
{"title":"Performance of soft-output space-time equalization for EGPRS","authors":"C. Luschi, A. M. Kuzminskiy, P. Strauch, B. Mulgrew","doi":"10.1109/VETECF.2000.883275","DOIUrl":"https://doi.org/10.1109/VETECF.2000.883275","url":null,"abstract":"The use of antenna arrays can help to combat cochannel interference (CCI) in wireless cellular systems. In interference-limited scenarios, spatio-temporal filtering techniques based on a deterministic least-square (LS) approach may be competitive with respect to trellis based algorithms, because of the difficulties of accurately modelling the space-time characteristics of CCI. We consider the impact on the receiver performance of the quality of the reliability information on the coded bits, computed at the output of the deterministic space-time equalizer. Simulation results are provided for an EGPRS receiver employing linear and decision-feedback training-based filtering techniques.","PeriodicalId":186198,"journal":{"name":"Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152)","volume":"17 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122593267","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: 6
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