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Localization Information Retrieval Exploiting Cooperation Among Mobile Devices 基于移动设备间协作的定位信息检索
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.33
C. Sammarco, F. Fitzek, G. P. Perrucci, A. Iera, A. Molinaro
{"title":"Localization Information Retrieval Exploiting Cooperation Among Mobile Devices","authors":"C. Sammarco, F. Fitzek, G. P. Perrucci, A. Iera, A. Molinaro","doi":"10.1109/ICCW.2008.33","DOIUrl":"https://doi.org/10.1109/ICCW.2008.33","url":null,"abstract":"Localization information retrieval is breaking new ground for mobile applications for indoor or urban areas. GPS is the positioning technology that powers the majority of the navigation devices today, it comes along with high complexity, high energy consumption and limited coverage for indoor. The main idea of this paper is to exploit cooperation among mobile devices to retrieve their geographical position without using GPS. The information used by the proposed mechanism is only based on the cell-id and the signal strength. Google has launched something similar for stand alone mobile phones with its new feature called My Location. We enhance this service using cooperation among mobile devices sharing the knowledge of cell IDs and signal strength. In this paper, after a short introduction about the proposed method, we are going to show how cooperation improves mobile devices' localization. We propose a new architecture that aims to localize mobile phones without using GPS devices. Afterwards, we are going to describe our setup and to discuss the achieved results. The main result of this paper is that the proposed scheme with three cooperating mobile devices can reduce the estimation area of more than five times compared to cell ID approaches such as the one of Google.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125961000","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
Intelligent Multi-Path Selection Based on Parameters Prediction 基于参数预测的智能多路径选择
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.106
Suyang Ju, Joseph B. Evans
{"title":"Intelligent Multi-Path Selection Based on Parameters Prediction","authors":"Suyang Ju, Joseph B. Evans","doi":"10.1109/ICCW.2008.106","DOIUrl":"https://doi.org/10.1109/ICCW.2008.106","url":null,"abstract":"This paper provides a method for multi-path selection based on parameters prediction. In wireless networks, links with different bandwidths induce different end-to-end delay and the packet loss rate characteristics. It means that we should be able to gain some knowledge of the type of links given the end-to-end delay and the packet loss rate. In this work, we use a neural network machine learning method to infer the types of the links. After predicting the types of the links, we can choose the path based on the prediction of the incremental throughput, for example by choosing the path with the largest potential incremental throughput.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128196059","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: 12
Decomposition Proportional Fairness Algorithm for Multiuser OFDM Systems 多用户OFDM系统的分解比例公平性算法
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.9
Lili Zhang, Cihang Jin, Wuyang Zhou
{"title":"Decomposition Proportional Fairness Algorithm for Multiuser OFDM Systems","authors":"Lili Zhang, Cihang Jin, Wuyang Zhou","doi":"10.1109/ICCW.2008.9","DOIUrl":"https://doi.org/10.1109/ICCW.2008.9","url":null,"abstract":"In this paper, we formulate a proportional fairness problem for downlink OFDM systems. Different from all the previous works, a completely new framework is presented by decomposing it into two levels: the master problem and the subproblems. Our proposed algorithm could remarkably reduce the computational complexity in the base station and the feedback overhead. Numerical results demonstrate that this algorithm could provide much better proportional fairness as well as enhance the system throughput.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133098863","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
Delay and throughput Analysis of IEEE 802.11s Networks IEEE 802.11s网络的时延和吞吐量分析
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.19
Ming-Xin Hu, G. Kuo
{"title":"Delay and throughput Analysis of IEEE 802.11s Networks","authors":"Ming-Xin Hu, G. Kuo","doi":"10.1109/ICCW.2008.19","DOIUrl":"https://doi.org/10.1109/ICCW.2008.19","url":null,"abstract":"The emerging IEEE 802.11s standard draft is a key technology of next-generation wireless networks. It can provide end users with broadband access of fast deployment, low cost, large coverage, and robust architecture. Recently, IEEE 802.11s draft has defined hybrid routing as default routing protocol. When tree-based topology is enabled, different mesh points (MPs) and mesh access points (MAPs) will achieve different loads according to their hops to the root, while previous discussions assumed that all the stations in the network have the same load. In this paper, we proposed an analytical model for IEEE 802.11 networks which considers different loads in hybrid routing. In the model, MPs/MAPs are classified into different groups according to their hops from the root and those closer to the root have a heavier load. We calculate their packet arrival rates in reasonable assumptions and derive the throughput and end-to-end delay. At last, numerical results show the factors, such as hops, affect network performance.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"706 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115119116","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
A Practical Implementation of an Improved Packet Combining Scheme for Wireless Sensor Networks 一种改进的无线传感器网络分组合并方案的实际实现
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.69
D. O'Rourke, C. Brennan
{"title":"A Practical Implementation of an Improved Packet Combining Scheme for Wireless Sensor Networks","authors":"D. O'Rourke, C. Brennan","doi":"10.1109/ICCW.2008.69","DOIUrl":"https://doi.org/10.1109/ICCW.2008.69","url":null,"abstract":"An improvement to a recently proposed packet combining procedure based on the use of a CRC is developed. Upon receiving two packets, sent over independent channels, a large error burst may appear in one; however, it is unlikely that the same situation will have occurred for its pair. By making an intelligent choice as to which packet the burst is most likely to be in, and choosing the other packet for correction, the decoding time can be reduced significantly. A practical implementation is provided with real results that show not only can this decision be made correctly on the majority of occasions but, once the correct packet is chosen, an intelligent search operation can be performed further reducing overhead.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128915985","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
Cognitive Spectrum Access for Underwater Acoustic Communications 水声通信的认知频谱获取
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.104
N. Baldo, P. Casari, M. Zorzi
{"title":"Cognitive Spectrum Access for Underwater Acoustic Communications","authors":"N. Baldo, P. Casari, M. Zorzi","doi":"10.1109/ICCW.2008.104","DOIUrl":"https://doi.org/10.1109/ICCW.2008.104","url":null,"abstract":"While very successful in traditional radio communications, the usage of TDMA and CSMA schemes for underwater acoustic communications is severely limited in efficiency and scalability, primarily due to the very large propagation delays. FDMA seems a viable alternative in that the propagation delay does not impact significantly its efficiency. However, in underwater communications, the capacity achievable on a particular channel depends strongly both on its frequency and on the communication distance, unlike in traditional radio transmissions where FDMA channels usually have comparable performance. Therefore, fixed channel allocation schemes traditionally used for radio FDMA do not perform well in underwater communications. In this paper, we investigate the application of the principles of cognitive radio and dynamic spectrum access to underwater communications. In particular, we propose a channel allocation scheme which exploits user location knowledge in order to maximize the minimum channel capacity among those achieved by the users. This provides maximum fairness and makes a more efficient use of the available spectrum resources. Performance evaluation carried out by means of simulation shows that our approach can achieve a great improvement in fairness among users, with respect to fixed allocation schemes, while at the same time scaling much better and thus allowing effective communications over larger distances.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"78 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132463154","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
High Order Geometric Range Free Localization in Opportunistic Cognitive Sensor Networks 机会认知传感器网络的高阶几何无距离定位
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.31
Dian Gong, Zhiyao Ma, Yunfan Li, Wei Chen, Z. Cao
{"title":"High Order Geometric Range Free Localization in Opportunistic Cognitive Sensor Networks","authors":"Dian Gong, Zhiyao Ma, Yunfan Li, Wei Chen, Z. Cao","doi":"10.1109/ICCW.2008.31","DOIUrl":"https://doi.org/10.1109/ICCW.2008.31","url":null,"abstract":"Position information of the primary user (PU) is important to the transmission among secondary users (SU) in cognitive sensor networks (CSN). A range free geometric localization algorithm aiming at collecting position information of PUs is proposed in this paper. Since PUs do not cooperate with SUs in CSN, opportunistic spectrum access (OSA) protocol is applied in this algorithm. Another difficulty in localization in CSN is the unavailability of received signal strength (RSS) or other precise measurements in the sensor node's physics layer due to the power and size limitation of sensor nodes, so the algorithm in this paper is designed to be range free. This range free feature makes the algorithm robust against the uncertainty of parameters of the physics layer. With respect to the performance of the algorithm, an approximation of mean squared error (MSE) of localization is derived. The roles played by the parameters in the system are analyzed. Simulation results are also presented.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126386160","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
IP over WDM Module for the NS-2 Simulator NS-2模拟器的IP over WDM模块
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.44
A. Drummond, R.T.R. da Silva
{"title":"IP over WDM Module for the NS-2 Simulator","authors":"A. Drummond, R.T.R. da Silva","doi":"10.1109/ICCW.2008.44","DOIUrl":"https://doi.org/10.1109/ICCW.2008.44","url":null,"abstract":"This paper presents the design of an IP over WDM module for the ns-2 simulator. The module make available the evaluation of QoS metrics, such as blocking probability and delay in IP over WDM networks. The module allows simulation of networks with traffic grooming, single and multi-hop routing, protection and restauration and global reconfiguration. This module is intended to be a valuable tool for research in IP over WDM networks mechanisms.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126510238","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
Two-Dimensional Resource Allocation for OFDMA System OFDMA系统的二维资源分配
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.5
Ting Wang, Hui Feng, Bo Hu
{"title":"Two-Dimensional Resource Allocation for OFDMA System","authors":"Ting Wang, Hui Feng, Bo Hu","doi":"10.1109/ICCW.2008.5","DOIUrl":"https://doi.org/10.1109/ICCW.2008.5","url":null,"abstract":"The resource allocation problem in OFDMA system is how to assign two-dimensional blocks covering time and frequency to multi-users. Resource allocation is crucial to system performance but is not defined in IEEE 802.16 standards. We proved that the problem of resource allocation in IEEE 802.16 standard is NP-complete. To approximately solve the problem in real time, we present a fast heuristic algorithm with O(n2) computational complexity based on topology evaluation. Simulation results show that the allocation result is competitive.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"257 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113994654","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: 40
Simplifying Network Management with Fuzzy Logic 用模糊逻辑简化网络管理
ICC Workshops - 2008 IEEE International Conference on Communications Workshops Pub Date : 2008-05-19 DOI: 10.1109/ICCW.2008.42
S. Sohail, Aasia Khanum
{"title":"Simplifying Network Management with Fuzzy Logic","authors":"S. Sohail, Aasia Khanum","doi":"10.1109/ICCW.2008.42","DOIUrl":"https://doi.org/10.1109/ICCW.2008.42","url":null,"abstract":"This paper advocates the use of machine learning for complex network management tasks. Specifically, this paper describes a novel idea of using fuzzy logic for effective network management, as the use of imprecise and linguistic information for intelligent decision making, can reduce the overhead of extensive network measurements for management purpose. It also describes the distinguishing features of network management that makes fuzzy logic suitable to be used in this field. Among a huge number of possible applications of this idea in broad area of network management, this paper briefly discusses few options that we are planning to explore further. In addition, it discusses one such option in detail.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115325380","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: 12
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