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11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)最新文献

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Performance of a microcellular network in a more realistic condition 微蜂窝网络在更现实条件下的性能
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881687
P. Gomez, M. Yacoub, A. Toledo
{"title":"Performance of a microcellular network in a more realistic condition","authors":"P. Gomez, M. Yacoub, A. Toledo","doi":"10.1109/PIMRC.2000.881687","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881687","url":null,"abstract":"This paper presents a study on interference in microcellular networks with reuse patterns based on a square grid. The performance of the system is assessed by means of the carrier-to-interference (C/I) ratio for a series of situations such as: the worst case condition, mobiles randomly positioned and channel activity according to a given traffic intensity. General formulas are presented for all possible reuse patterns, and graphical results are presented for systems with clusters of 5, 8, 9, 10 and 13 microcells. The results show an outstanding improvement in performance when compared to those for the worst case condition presented in previous works of the same authors.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115938353","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: 2
Reverse link capacity of a wireless multimedia CDMA system with power and processing gain control in conjunction with CCI cancellers 无线多媒体CDMA系统的反向链路容量，其功率和处理增益控制与CCI消除器相结合
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881540
Nasser Hamad, T. Hashimoto
{"title":"Reverse link capacity of a wireless multimedia CDMA system with power and processing gain control in conjunction with CCI cancellers","authors":"Nasser Hamad, T. Hashimoto","doi":"10.1109/PIMRC.2000.881540","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881540","url":null,"abstract":"The system capacity of the reverse link of a wireless multimedia CDMA system with processing gain control is analyzed in the asymptotic regime, when the processing gain G/spl rarr//spl infin/ for receivers with and without co-channel interference (CCI) cancellers. A new scheme for processing gain control with an optimized power allocation is proposed and its system capacity is compared with the conventional processing gain control scheme as well as the previously discussed power control scheme. It is shown that the proposed scheme has a certain advantage over other schemes.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117187787","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: 1
Combined multiuser interference cancellation and antenna array processing for DS/CDMA systems DS/CDMA系统的联合多用户干扰消除和天线阵列处理
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881589
Lydia L. W. Leung, R. Cheng, K. Letaief, R. Murch
{"title":"Combined multiuser interference cancellation and antenna array processing for DS/CDMA systems","authors":"Lydia L. W. Leung, R. Cheng, K. Letaief, R. Murch","doi":"10.1109/PIMRC.2000.881589","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881589","url":null,"abstract":"It is well-known that the capacity of a direct sequence CDMA system is multiple access interference limited. Adaptive antenna arrays and interference cancellation can significantly reduce the multiple access interference and can greatly enhance the system performance. This paper investigates the performance improvement that can be achieved by integrating adaptive antenna array processing and interference cancellation, where the receiver steers the beams of the adaptive antenna towards not only the desired user but the interferers as well to facilitate the interference cancellation process. We analyze how the use of an FFT beamformer preceding the 2-D RAKE receiver reduces the complexity of the receiver without severe degradation in the overall system performance.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117279709","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
An autonomous relay access scheme for inter-vehicle communication network 一种车际通信网络的自主中继接入方案
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881567
F. Kojima, H. Harada, M. Fujise
{"title":"An autonomous relay access scheme for inter-vehicle communication network","authors":"F. Kojima, H. Harada, M. Fujise","doi":"10.1109/PIMRC.2000.881567","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881567","url":null,"abstract":"This paper proposes an autonomous relay access algorithm that provides an intelligent wireless network structure for an inter-vehicle communication system. The proposed algorithm introduces a special classification among mobile terminals and assigns terminals to one of several terminal groups, which are adaptively and autonomously constructed according to traffic conditions. The proposed algorithm uses the terminal groups to conduct relay access transmission among terminals, and achieves a higher rate of successful inter-terminal transmission. Computer simulation confirms that the proposed algorithm can achieve a lower blocking probability than an algorithm without a relay access scheme.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115667835","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: 7
Interference analysis in unslotted packet radio networks employing BPSK modulation 采用BPSK调制的非开槽分组无线网中的干扰分析
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881601
K. Hamdi
{"title":"Interference analysis in unslotted packet radio networks employing BPSK modulation","authors":"K. Hamdi","doi":"10.1109/PIMRC.2000.881601","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881601","url":null,"abstract":"This paper presents an analytical framework for interference analysis in unslotted packet radio networks employing BPSK modulation. An accurate mathematical model that tracks the joint variations of the multiple access interference appearing at the postdetection filter over all bits of a test packet is formulated. The performance of the unslotted system is quantified by considering an equivalent slotted system that experiences the same amount of effective interference, where the latter is computed from the short term average interference experienced by all bits of the packet. Closed form expressions for the corresponding packet error probabilities are.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114304374","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
Space and path diversity: theoretical matched filter bound and comparison to diversity gain obtained with practical MLSE receivers 空间和路径分集:理论匹配滤波器界和分集增益与实际MLSE接收机的比较
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881509
L. Husson, A. Wautier
{"title":"Space and path diversity: theoretical matched filter bound and comparison to diversity gain obtained with practical MLSE receivers","authors":"L. Husson, A. Wautier","doi":"10.1109/PIMRC.2000.881509","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881509","url":null,"abstract":"Performance of space diversity techniques is considered for transmissions in mobile radio environments. Optimal performances are derived for any multipath Rayleigh fading channel for Nth-order diversity whenever the signals delivered by the antennas are correlated or not. The proposed theoretical study, illustrated for 2PSK, is suitable for any other modulation schemes (constellation, symbol rate, filter shaping...) to evaluate optimal performance of existing or future digital systems including imperfect channel estimation on fast varying channels. Matched filter bound performance is compared to practical receivers behavior. Simulations have been carried out in the case of the GSM system for second order diversity considering two practical receiver structures based on MLSE (maximum-likelihood sequence-estimator). The theoretical results and simulations show that second order diversity can be used in practical to considerably improve the BER performance or to improve the link budget of the transmission.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115438617","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
A photon counting approach to the performance analysis of indoors wireless infrared CDMA networks 基于光子计数的室内无线红外CDMA网络性能分析
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881558
S. Zahedi, J. Salehi, M. Nasiri-Kenari
{"title":"A photon counting approach to the performance analysis of indoors wireless infrared CDMA networks","authors":"S. Zahedi, J. Salehi, M. Nasiri-Kenari","doi":"10.1109/PIMRC.2000.881558","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881558","url":null,"abstract":"Indoors wireless infrared transmission is severely impaired by ambient noise. In addition, in a multiple user network, since many users share the same physical channel, considerable amount of multi-user interference will also be introduced. Infrared CDMA techniques are proposed to combat the effect of ambient and multi-user interference. Our analysis is based on photon counting approach and the bit error rate is given versus signal power. The results show that using infrared CDMA techniques, transmission can be performed well below the ambient noise power with transmission power that satisfies eye-safety power regulations.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127156945","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: 22
Application of reinforcement learning to admission control in CDMA network 强化学习在CDMA网络准入控制中的应用
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881639
B. Makarevitch
{"title":"Application of reinforcement learning to admission control in CDMA network","authors":"B. Makarevitch","doi":"10.1109/PIMRC.2000.881639","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881639","url":null,"abstract":"The paper describes an admission control algorithm for the CDMA networks which is able to adapt to the operating environment. The algorithm is based on the principle of reinforcement learning and it achieves near-optimal performance for various radio propagation conditions and network operator's objectives. The performance evaluation results for different state space alternatives and algorithm parameters are presented and compared with the conventional admission control based on the power thresholds.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127336637","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
Cyclic shifting and time inversion of partial transmit sequences to reduce the peak-to-average power ratio in OFDM 在OFDM中对部分发射序列进行循环移位和时间反转以降低峰均功率比
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881620
G. Hill, M. Faulkner, J. Singh
{"title":"Cyclic shifting and time inversion of partial transmit sequences to reduce the peak-to-average power ratio in OFDM","authors":"G. Hill, M. Faulkner, J. Singh","doi":"10.1109/PIMRC.2000.881620","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881620","url":null,"abstract":"An adaptation of the work by Huber and Muller (see Electronic Letters, vol.33, no.5, p.368-69, 1997) on partial transmit sequences (PTS) for the reduction of the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) is described.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125822064","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: 26
Concept for universal access and connectivity in mobile radio networks 移动无线网络普遍接入和连接的概念
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI: 10.1109/PIMRC.2000.881542
D. Hunold, A. Barreto, G. Fettweis, M. Mecking
{"title":"Concept for universal access and connectivity in mobile radio networks","authors":"D. Hunold, A. Barreto, G. Fettweis, M. Mecking","doi":"10.1109/PIMRC.2000.881542","DOIUrl":"https://doi.org/10.1109/PIMRC.2000.881542","url":null,"abstract":"Mobile communications is characterized by a fast growing number of users and an increasingly heterogeneous data traffic due to emerging multimedia packet services. Likewise, users desire more mobility support, thus demanding permanent availability at any place and any speed. The conventional answer to this problem is building new wireless standards. But these standards require totally new hardware, users cannot use their old terminals, and no wireless communication among networks is possible which considerably constrains the availability demand. Instead, we propose a unified way for basic network access and connectivity maintenance. It is embodied by a perpetually available signalling channel-the network access and connectivity channel (NACCH) and a common functionality trunk, shared by several networks. With this concept, networks can communicate and, hence, form a mega-network where users have universal access and roaming support.","PeriodicalId":301441,"journal":{"name":"11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126979157","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: 11
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