2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems最新文献

On the Complexity of the Multi-Robot, Multi-Depot Map Visitation Problem 多机器人多仓库地图访问问题的复杂性研究

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.90

Eric Aaron, E. Kranakis, D. Krizanc

引用次数: 5

Distributed Spectrum Sensing in Cognitive Radio Networks with Fairness Consideration: Efficiency of Correlated Equilibrium 考虑公平性的认知无线电网络分布式频谱感知:相关均衡的效率

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.143

Sabita Maharjan, Yan Zhang, C. Yuen, S. Gjessing

{"title":"Distributed Spectrum Sensing in Cognitive Radio Networks with Fairness Consideration: Efficiency of Correlated Equilibrium","authors":"Sabita Maharjan, Yan Zhang, C. Yuen, S. Gjessing","doi":"10.1109/MASS.2011.143","DOIUrl":"https://doi.org/10.1109/MASS.2011.143","url":null,"abstract":"Cooperative spectrum sensing improves the reliability of detection. However, if the secondary users are selfish, they may not collaborate for sensing. In order to address this problem, Medium Access Control (MAC) protocols can be designed to enforce cooperation among secondary users for spectrum sensing. In this paper, we investigate this problem using game theoretical framework. We introduce the concept of correlated equilibrium for the cooperative spectrum sensing game among non-cooperative secondary users and formulate the optimization problem for the case where secondary users have heterogeneous traffic dynamics. We show that the correlated equilibrium improves the system utility, as compared to the mixed strategy Nash equilibrium. While maximizing system payoff is important, fairness is also equally important in systems with dissimilar users. In order to address fairness issue, we propose a new fair social welfare correlated equilibrium, which maximizes the system utility and ensures that the less well-off users do not starve. We employ a no-regret learning algorithm for distributed implementation of the correlated equilibrium. Finally, we propose a neighbourhood based learning algorithm and show that it achieves better performance than the no-regret algorithm.","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"81 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115048751","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: 21

Physical Layer Network Coding with Signal Alignment for MIMO Wireless Networks MIMO无线网络信号对准的物理层网络编码

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.142

Ruiting Zhou, Zongpeng Li, Chuan Wu, C. Williamson

{"title":"Physical Layer Network Coding with Signal Alignment for MIMO Wireless Networks","authors":"Ruiting Zhou, Zongpeng Li, Chuan Wu, C. Williamson","doi":"10.1109/MASS.2011.142","DOIUrl":"https://doi.org/10.1109/MASS.2011.142","url":null,"abstract":"We propose signal alignment (SA), a new wireless communication technique that enables physical layer network coding (PNC) in multi-input multi-output (MIMO) wireless net- works. Through calculated precoding, SA contracts the perceived signal space at a node to match its receive diversity, and hence facilitates the demodulation of linearly combined data packets. PNC coupled with SA (PNC-SA) has the potential of fully exploiting the precoding space at the senders, and can better utilize the spatial diversity of a MIMO network for higher transmission rates, outperforming existing techniques including MIMO or PNC alone, interference alignment (IA) and interference alignment and cancellation (IAC). PNC-SA adopts the seminal idea of'demodulate a linear combination'from PNC. The design of PNC-SA is also inspired by recent advances in IA, though SA alignssignalsnotinterferences. We study the optimal precoding and power allocation problem of PNC-SA, for SNR maximization at the receiver. The mapping from SNR to BER is then analyzed,revealing that the throughput gain of PNC-SA does not come with a sacrifice in BER. Wefinally demonstrate general applications of PNC-SA, and show via network level simulations that it can substantially increase the throughput of unicast and multicast sessions, by opening previously unexplored solution spaces in multi-hop MIMO routing.","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116056586","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

Fractional Frequency Reuse to Mitigate Interference in Self-Configuring LTE-Femtocells Network 自配置LTE-Femtocells网络中减少干扰的部分频率复用

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.138

A. Dalal, Hailong Li, D. Agrawal

{"title":"Fractional Frequency Reuse to Mitigate Interference in Self-Configuring LTE-Femtocells Network","authors":"A. Dalal, Hailong Li, D. Agrawal","doi":"10.1109/MASS.2011.138","DOIUrl":"https://doi.org/10.1109/MASS.2011.138","url":null,"abstract":"Development of femtocells is the most recent step towards increasing the network capacity of a wireless network and improving the quality of service for cellular users. However, as all the femtocells use the same radio band, it poses a serious interference issue amongst neighboring femtocells, especially when femtocells are densely deployed. In this paper, we study the problem of DL (downlink) and UL (uplink) interference amongst closed-access neighboring femtocells used in conjunction with the Long Term Evolution (LTE) technology and propose a solution to mitigate this interference using Fractional Frequency Reuse (FFR) technique. User equipments (UEs) report to their serving femto base stations (F-BSs) periodically. If the report reveals high interference level, neighboring F-BSs locally adopt FFR in a coordinated but decentralized way. FFR divides the femtocell in cell-center and cell-edge areas where the cell-edge of interfering F-BSs use distinct set of sub-carriers (SCs). The division takes place in a way such that the affected UE falls in the cell-edge area. The simulation results indicate that the proposed scheme decreases interference in the neighboring F-BSs, femto UEs (F-UEs) and macro UEs (M-UEs) and improves the overall throughput. KeywordsFemtocell; Macrocell; Fractional frequency reuse","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122081504","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

TALB: A Traffic-Aware Load Balancer for Throughput Improvement in Wireless Mesh Networks 基于流量感知的无线网状网络吞吐量优化负载均衡器

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.20

Emilio Ancillotti, R. Bruno, M. Conti

{"title":"TALB: A Traffic-Aware Load Balancer for Throughput Improvement in Wireless Mesh Networks","authors":"Emilio Ancillotti, R. Bruno, M. Conti","doi":"10.1109/MASS.2011.20","DOIUrl":"https://doi.org/10.1109/MASS.2011.20","url":null,"abstract":"In this paper we design, implement and evaluate a practical flow-based routing architecture for WMNs, called TALB, which exploits traffic measurements to balance traffic load over available mesh paths and gateways. To achieve throughput enhancements while mitigating inter-flow interference, TALB implements a emph{Constrained Maximal Bottleneck Path} computation algorithm to maximize the bottleneck capacity of the paths used to reach the Internet, while preserving a given degree of traffic locality. The distinctive aspect of our proposed scheme is that it relies on a traffic-aware definition of residual link capacities to properly take into account the heterogeneity of Internet applications (e.g., inelastic vs. elastic traffic) and their service requirements (e.g., fixed vs. adaptive demands). Then, each mesh node monitors the main features of long-lived traffic flows, and reports such information to a network manager, which decides upon the sub-optimal paths to allocate to each new session. Tests performed in a 10-node wireless mesh testbed show that TALB provides remarkably throughput gains over nearest gateway strategies in case of mixed TCP and UDP traffic scenarios, or low to moderate load conditions.","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129715949","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

CCD: Locating Event in Wireless Sensor Network without Locations CCD:无定位无线传感器网络中的事件定位

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.72

Shuo Lian, Yuan He, Jizhong Zhao

{"title":"CCD: Locating Event in Wireless Sensor Network without Locations","authors":"Shuo Lian, Yuan He, Jizhong Zhao","doi":"10.1109/MASS.2011.72","DOIUrl":"https://doi.org/10.1109/MASS.2011.72","url":null,"abstract":"Event detection is a typical application of wireless sensor networks. The existing approaches of event detection usually employ certain event models that are constructed with prior domain knowledge. The resulting event detection processes appear to be cost-inefficient, which require either intensive data exchanges among neighboring nodes or caching large columns of history data. In this paper, we focus on the issue of locating event in wireless sensor network without locations. This involves two tasks, namely detecting an event and identifying an area in the network where the event occurs. Motivated by the real system, we propose a model-free approach for event detection called CCD (Coding Cost based event Detection). Coding cost is a metric that quantifies the diversity of a set of sensor readings. Incorporated into the inherent data collection mechanism, CCD passively constructs a gradient map of coding cost throughout the network. An event is then detected where a change point of gradient appears and identifies the event pattern automatically. CCD is fully distributed and does not incur apparent communication overhead. We implement CCD and evaluate its performance with extensive experiments and simulations. The results demonstrate that CCD is accurate, scalable, and applicable to a variety of sensor networks.","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126887455","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

A Unified Metric for Routing and Rate Adaptation in Multi-Rate Wireless Mesh Networks 多速率无线网状网络中路由和速率自适应的统一度量

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.31

Tae-Seok Kim, G. Jakllari, S. Krishnamurthy, M. Faloutsos

{"title":"A Unified Metric for Routing and Rate Adaptation in Multi-Rate Wireless Mesh Networks","authors":"Tae-Seok Kim, G. Jakllari, S. Krishnamurthy, M. Faloutsos","doi":"10.1109/MASS.2011.31","DOIUrl":"https://doi.org/10.1109/MASS.2011.31","url":null,"abstract":"In this paper, we propose a new metric that is applicable both to routing and rate adaptation in multi-rate wireless mesh networks. Unlike many previous efforts, our metric is comprehensive; it considers several factors that affect end-to-end performance such as the effect of the relative positions of the links on a path when choosing the rates of operation and the importance of avoiding congested areas. We call our metric ETM (for Expected Transmission cost in Multi-rate wireless networks). We analytically derive the ETM metric. We show that the ETM metric can be used (a) to determine the best end-to-end path with a greedy routing approach and (b) it can be used to dynamically select the best transmission rate for each link on the path via a dynamic programming approach. Based on ETM, we design and implement the ETM-framework on an indoor wireless mesh network and compare its performance with that of the popular ETT and the recently proposed ETOP metrics. Our experiments show that the ETM-framework yields throughput improvements of up to 253% and 368% as compared with the ETT and ETOP frameworks.","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121719600","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

VITRO Architecture: Bringing Virtualization to WSN World 体外架构:将虚拟化带入WSN世界

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.96

Monica Navarro, Marcello Antonucci, L. Sarakis, T. Zahariadis

引用次数: 20

Multicast and Virtual Road Side Units for Multi Technology Alert Messages Dissemination 多技术预警信息传播的多播和虚拟路侧单元

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.115

D. Câmara, C. Bonnet, N. Nikaein, M. Wetterwald

引用次数: 15

Public Safety and ad hoc Networks: Coverage Extension and Interoperability 公共安全和特设网络:覆盖范围扩展和互操作性

2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems Pub Date : 2011-10-17 DOI: 10.1109/MASS.2011.111

Karim El Shabrawy, Grégory Baudeau, Thierry Deniaud

{"title":"Public Safety and ad hoc Networks: Coverage Extension and Interoperability","authors":"Karim El Shabrawy, Grégory Baudeau, Thierry Deniaud","doi":"10.1109/MASS.2011.111","DOIUrl":"https://doi.org/10.1109/MASS.2011.111","url":null,"abstract":"The HNPS project aims at defining solutions for the integration and the interoperability between various heterogeneous communication networks. The solutions described in this document propose to enlarge the service capabilities by extending the interoperability and the coverage of the services required by the Public Safety and Security community. The general approach is divided in various parts including: extending the PMR (Professional Mobile Radiocommunications) network coverage by using existing or deployable technologies; creating bridges to extend PMR coverage thanks to IP networks. The experiments reported in this document are based on the introduction of an ad hoc network (OLSR / MOLSR protocols) in order to extend the PMR network (e.g. extension in a building): ad hoc networks are quickly deployable, do not need any infrastructure, offer a larger coverage through its multi-hop feature, so are suitable to extend a network. A gateway is also designed in order to ensure the interoperability between the PMR network and the ad hoc network: the group communication service proposed in the PMR network (including Push-To-Talk feature) is shared between both networks. Moreover, as security is a main feature of the PMR networks, solutions for the security architecture are also described in this paper. Keywords-Public Safety; ad hoc network; coverage extension; interoperability; group communication; security","PeriodicalId":253543,"journal":{"name":"2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132393563","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