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Performance Comparison of Adaptive Power Control in UMTS UMTS中自适应功率控制的性能比较
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.54
R. Patachaianand, K. Sandrasegaran
{"title":"Performance Comparison of Adaptive Power Control in UMTS","authors":"R. Patachaianand, K. Sandrasegaran","doi":"10.1109/AUSWIRELESS.2007.54","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.54","url":null,"abstract":"Universal mobile telecommunication system (UMTS) networks rely on the performance of power control algorithms in use. The conventional power control in UMTS is a fixed stepsize algorithm which can achieve only limited performance. A number of advanced power control techniques have been presented in the literature. However, it is difficult to compare the performance of algorithms from different literature because they were evaluated based on different simulation environments and assumptions. In this paper, performance of a number of adaptive power control algorithm is compared under the same simulation environment and assumptions. The simulation results show that AS-CLPC provides the best performance for low-speed users, and SA-CLPC provides the best performance for high-speed users.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131088850","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
A Partial Super Fast Recovery Algorithm for FAST TCP Fast TCP的部分超快速恢复算法
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.10
Fei Ge, L. Tan
{"title":"A Partial Super Fast Recovery Algorithm for FAST TCP","authors":"Fei Ge, L. Tan","doi":"10.1109/AUSWIRELESS.2007.10","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.10","url":null,"abstract":"This paper proposes an algorithm termed as partial super fast recovery (PSFR) for dealing with the packet loss due to random link error in FAST TCP. PSFR increases throughout and alleviates oscillations of router queue when random link error appears in equilibrium status. The implementation of PSFR is described and analyzed. NS2 simulation results confirm satisfactory performance of PSFR.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131847494","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: 8
On the Range-Data Rate Performance of Outdoor UWB Communication 户外超宽带通信距离-数据速率性能研究
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.51
J. Nascimento, H. Nikookar
{"title":"On the Range-Data Rate Performance of Outdoor UWB Communication","authors":"J. Nascimento, H. Nikookar","doi":"10.1109/AUSWIRELESS.2007.51","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.51","url":null,"abstract":"Major envisioned commercial ultra wideband (UWB) applications are indoor, nonetheless, the suitability of UWB technology for data communication over longer ranges may also have a relevant role in the outdoor wireless communications. In this paper we evaluate and compare the achievable range-data rate performance of a reliable UWB communication link for long ranges, considering an Impulse Radio UWB system and the use of M-ary PAM and M-ary PPM modulations. The free space, lognormal shadowing and two-ray path loss models are considered. We incorporate the UWB frequency dependency of two different ground reflection materials as well as different electric field polarizations in the two-ray path loss model. Tables with the achievable range-data rate performance of the UWB link are provided. Novel results of this research work indicate that, complying with the FCC emission limits, a reliable outdoor UWB link can be established by compromising between range and speed of transmission.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114802159","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
Experimental Comparison of Two Automotive Radars for use on an Autonomous Vehicle 两种自动驾驶汽车雷达的实验比较
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.33
D. Johnson
{"title":"Experimental Comparison of Two Automotive Radars for use on an Autonomous Vehicle","authors":"D. Johnson","doi":"10.1109/AUSWIRELESS.2007.33","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.33","url":null,"abstract":"Many of the requirements for autonomous sensing of moving vehicles are the same as those for automatic cruise control radars, whose development is now sufficiently mature to be on offer to the consumer car market. This paper investigates the suitability of these radars for use on an autonomous vehicle, and describes a capability assessment of two specific radars for such a task.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822295","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
Estimation of the Hit Probability and its Effect on the Performance of Frequency Hopping Radar System 跳频雷达命中概率的估计及其对系统性能的影响
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.30
S. Mostafa
{"title":"Estimation of the Hit Probability and its Effect on the Performance of Frequency Hopping Radar System","authors":"S. Mostafa","doi":"10.1109/AUSWIRELESS.2007.30","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.30","url":null,"abstract":"It was found that, the frequency hopping, FH, technique minimizes sensitivity of radar system to jamming and interference and may solve some of the ambiguity and resolution problems. In the present work, at first, a theoretical introductory to summarize the subject of FH technique, slow frequency hopping (SFH) as well as fast frequency hopping (FFH) is given. Fast frequency hopping will be considered rather than SFH because its performance is significantly better . The frequency hopping procedure will be carried out pseudo randomly according to the Gamma random distribution which is proved here to have better correlation properties. Expectation of the hit probability of the used FH sequences of the radar signal, as well as the range ambiguity function, will be calculated and evaluated as a measure of the system performance. The simulation output has proved that the FFH radar system can achieve a nearby ideal performance.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114825617","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
UWB Acquisition at Symbol Sampling Rate Using Reference Aided Match Filter and Adaptive Post Detection Integration 基于参考辅助匹配滤波器和自适应后检测集成的符号采样率UWB采集
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.84
Xia Cheng, A. Dinh
{"title":"UWB Acquisition at Symbol Sampling Rate Using Reference Aided Match Filter and Adaptive Post Detection Integration","authors":"Xia Cheng, A. Dinh","doi":"10.1109/AUSWIRELESS.2007.84","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.84","url":null,"abstract":"Short pulse, multi-path, intersymbol interference, and high sampling rate in UWB communications pose more challenges in system synchronization. This paper proposes an acquisition structure to synchronize the system at symbol rate sampling. The reference aided match filter is used at the front end to match the incoming data with the pilot codes. An adaptive post detection integration helps to suppress ISI and provides an easy threshold set-up. A bit iteration search assists in reducing acquisition time. Simulation results show a promising acquisition scheme for UWB communication systems at symbol sampling rate.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116978057","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
Methodology and initial analysis results for development of non-invasive and hybrid driver drowsiness detection systems 非侵入式和混合式驾驶员困倦检测系统开发的方法学和初步分析结果
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.44
E. Zilberg, D. Burton, Z. Xu, M. Karrar, Sara Lal
{"title":"Methodology and initial analysis results for development of non-invasive and hybrid driver drowsiness detection systems","authors":"E. Zilberg, D. Burton, Z. Xu, M. Karrar, Sara Lal","doi":"10.1109/AUSWIRELESS.2007.44","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.44","url":null,"abstract":"Application of piezofilm movement sensors integrated into the car seat, seat belt and steering wheel was proposed for development of a non-invasive and hybrid systems for detecting driver drowsiness. A car simulator study was designed to collect physiological data for validation of this technology. Methodology for analysis of physiological data, independent assessment of driver drowsiness and development of drowsiness detection algorithm by means of sequential fitting and selection of regression models is presented. Statistical analysis shows that during the episodes of transitions to dangerous levels of drowsiness movement variations recorded by the seat sensors are decreasing. This finding indicates that the piezofilm movement sensors could be used as noninvasive devices for detecting the level of drowsiness on their own or in combination with other physiological signals.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121900373","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: 47
The Overlay Multicast Protocol (OMP): A Proposed Solution to Improving Scalability of Multicasting in MPLS Networks 覆盖组播协议(OMP):提高MPLS网络中组播可扩展性的一种方案
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.81
Hind O. Al-Misbahi, A. Y. Al-Aama
{"title":"The Overlay Multicast Protocol (OMP): A Proposed Solution to Improving Scalability of Multicasting in MPLS Networks","authors":"Hind O. Al-Misbahi, A. Y. Al-Aama","doi":"10.1109/AUSWIRELESS.2007.81","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.81","url":null,"abstract":"With the increasing emergence of group communication applications, and the need for more efficient usage of network resources, multicast techniques and protocols are becoming more vital in networks, and thus need to be given more attention. Multicasting refers to the ability to send information to several receivers at the same time. IP multicast and overlay multicast are two well known approaches that provide multicast services. Several limitations found in IP multicast are addressed in overlay multicast. However, implementation of multicast on MPLS still suffers from IP multicast limitations. This paper proposes a new protocol: the overlay multicast protocol (OMP), in which the overlay approach is applied on MPLS networks to improve the scalability of multicasting. The detailed operations of OMP are explained and a simulation study is presented. The results show the improvement in performance when using OMP.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"371 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124646475","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
Performance Evaluation of a Self-Organising Scheme for Multi-Radio Wireless Mesh Networks 多无线Mesh网络自组织方案的性能评价
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.56
A. Prodan, V. Mirchandani, J. Debenham, L. Green
{"title":"Performance Evaluation of a Self-Organising Scheme for Multi-Radio Wireless Mesh Networks","authors":"A. Prodan, V. Mirchandani, J. Debenham, L. Green","doi":"10.1109/AUSWIRELESS.2007.56","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.56","url":null,"abstract":"Multi-radio wireless mesh networks (MR-WMN) can substantially increase the aggregate capacity of the wireless mesh networks (WMN) if the channels are assigned to the nodes in an intelligent way so that the overall interference is limited. We propose a generic self-organisation algorithm that addresses the two key challenges of scalability and stability in a WMN. The basic approach is that of a distributed, light-weight, co-operative multiagent system that guarantees scalability. The usefulness of our algorithm is exhibited by the performance evaluation results that are presented for different MR-WMN node densities and typical topologies. In addition, our work complements the Task Group 802.11s extended service set (ESS) mesh networking project work that is in progress.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"18 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114106734","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
New Higher Order Rotation Spreading Matrix for BSOFDM BSOFDM的一种新的高阶旋转扩展矩阵
The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI: 10.1109/AUSWIRELESS.2007.50
I. Raad, Xiaojing Huang, R. Raad
{"title":"New Higher Order Rotation Spreading Matrix for BSOFDM","authors":"I. Raad, Xiaojing Huang, R. Raad","doi":"10.1109/AUSWIRELESS.2007.50","DOIUrl":"https://doi.org/10.1109/AUSWIRELESS.2007.50","url":null,"abstract":"Previously a new matrix called the rotation spreading matrix was proposed for block spread OFDM which had advantages over other well known spreading matrices such as the Hadamard in frequency selective channels such the UWB channels. Then a new paper discussed a method to expand this Rotation spreading matrix into higher order allowing the system BSOFDM to achieve higher order matrices which still showed excellent orthogonal properties which can be used in these frequency selective channels. This work is continued on the rotation spreading matrix and this paper presents another method to expand the rotation spreading matrix based on complete complementary sets of sequences which the authors have shown to have excellent properties in higher order matrices. This paper discusses the new method and presents a comparison between the two mentioned methods.","PeriodicalId":312921,"journal":{"name":"The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123696683","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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