Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems最新文献_第6页

Experimental evaluation of a wireless community mesh network 一种无线社区网状网络的实验评估

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507960

Llorenç Cerdà-Alabern, Axel Neumann, P. Garcia

引用次数: 47

Efficient relay deployment for controlling connectivity in delay tolerant mobile networks 在容延迟移动网络中控制连通性的有效中继部署

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507966

Zhiyu Wang, M. Nascimento, M. MacGregor

引用次数: 0

An energy efficient adaptive HELLO algorithm for mobile ad hoc networks 一种面向移动自组织网络的节能自适应HELLO算法

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507952

Danping He, N. Mitton, D. Simplot-Ryl

{"title":"An energy efficient adaptive HELLO algorithm for mobile ad hoc networks","authors":"Danping He, N. Mitton, D. Simplot-Ryl","doi":"10.1145/2507924.2507952","DOIUrl":"https://doi.org/10.1145/2507924.2507952","url":null,"abstract":"HELLO protocol or neighborhood discovery is essential in wireless ad hoc networks. It makes the rules for nodes to claim their existence/aliveness. In the presence of node mobility, no fix optimal HELLO frequency and optimal transmission range exist to maintain accurate neighborhood tables while reducing the energy consumption and bandwidth occupation. Thus a Turnover based Frequency and transmission Power Adaptation algorithm (TFPA) is presented in this paper. The method enables nodes in mobile networks to dynamically adjust both their HELLO frequency and transmission range depending on the relative speed. In TFPA, each node monitors its neighborhood table to count new neighbors and calculate the turnover ratio. The relationship between relative speed and turnover ratio is formulated and optimal transmission range is derived according to battery consumption model to minimize the overall transmission energy. By taking advantage of the theoretical analysis, the HELLO frequency is adapted dynamically in conjunction with the transmission range to maintain accurate neighborhood table and to allow important energy savings. The algorithm is simulated and compared to other state-of-the-art algorithms. The experimental results demonstrate that the TFPA algorithm obtains high neighborhood accuracy with low HELLO frequency (at least 11% average reduction) and with the lowest energy consumption. Besides, the TFPA algorithm does not require any additional GPS-like device to estimate the relative speed for each node, hence the hardware cost is reduced.","PeriodicalId":445138,"journal":{"name":"Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131627233","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

Efficient algorithm for serial data fusion in wireless sensor networks 无线传感器网络中串行数据融合的高效算法

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507964

A. Mostefaoui, Mahmoud Melkemi, A. Boukerche

{"title":"Efficient algorithm for serial data fusion in wireless sensor networks","authors":"A. Mostefaoui, Mahmoud Melkemi, A. Boukerche","doi":"10.1145/2507924.2507964","DOIUrl":"https://doi.org/10.1145/2507924.2507964","url":null,"abstract":"Although Wireless Sensor Networks (WSNs) are capable of generating a huge amount of data, the ultimate objective of the underlying applications/end-users is to derive an estimate of a parameter or function of interest through queries sent to nodes containing raw data. The way these queries are handled by the network has a deep impact on its overall performances ( e.g., required communications, consumed energy, etc.). Among the numerous centralized and distributed approaches addressing this issue, serial ones have shown an interesting improvements in terms of reducing communication needed for each query and hence reducing required energy. Nevertheless, serial approaches suffer two main drawbacks: (a) they require to construct a path passing through all nodes of the network (which is known to be a NP-Complete problem) and (b) they experience poor scalability. In this paper, we investigate these issues by proposing a novel localized serial approach, called Peeling Algorithm (PA). The proposed approach, because of its localized nature (i.e., no extra-information is needed rather than what it is already available at each node), has shown better support for scalability while reducing significantly needed communications to accomplish a query. The extensive simulation evaluations we made have confirmed the effectiveness of our proposed approach in comparison to other serial approaches. We also provide in this paper formal proofs of its correctness i.e., our distributed approach terminates (free of looping) and visits all connected nodes in the network.","PeriodicalId":445138,"journal":{"name":"Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130246809","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

Measurement-based simulation of WiFi interference 基于测量的WiFi干扰仿真

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507990

Mustafa Al-Bado, C. Sengul

引用次数: 3

RECAST: telling apart social and random relationships in dynamic networks RECAST:在动态网络中区分社会和随机关系

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507950

Pedro O. S. Vaz de Melo, A. C. Viana, M. Fiore, K. Jaffrès-Runser, Frédéric Le Mouël, A. Loureiro

引用次数: 53

Cactus: a hybrid digital-analog wireless video communication system Cactus:一种数字模拟混合无线视频通信系统

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507987

H. Cui, Zhihai Song, Zhe Yang, Chong Luo, Ruiqin Xiong, Feng Wu

{"title":"Cactus: a hybrid digital-analog wireless video communication system","authors":"H. Cui, Zhihai Song, Zhe Yang, Chong Luo, Ruiqin Xiong, Feng Wu","doi":"10.1145/2507924.2507987","DOIUrl":"https://doi.org/10.1145/2507924.2507987","url":null,"abstract":"This paper challenges the conventional wisdom that video redundancy should be removed as much as possible for efficient communications. We discover that, by keeping spatial redundancy at the sender and properly utilizing it at the receiver, we can build a more robust and even more efficient wireless video communication system than existing ones. In the proposed framework, inter-frame (temporal) redundancy in video is removed at the encoder, but intra-frame (spatial) redundancy is retained. In doing so, pixel values after a transform-domain scaling are directly transmitted with amplitude modulation. At the receiver, spatial redundancy is utilized by image denoising. Note that denoising in our decoder is not a post-processing, but have to be immediately performed on channel output. We implement the video communication system called Cactus on SORA platform, and make the denoising processing real-time through GPU implementation. Cactus is evaluated in 802.11a/g WLAN environment. On average, Cactus outperforms SoftCast by 4.7 dB in video PSNR and is robust to packet losses.","PeriodicalId":445138,"journal":{"name":"Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121062985","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: 43

Epidemic content distribution: empirical and analytic performance 流行内容分布:实证与分析绩效

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507998

Ljubica Pajevic, G. Karlsson, Ó. Helgason

引用次数: 10

A representative and accurate characterization of inter-contact times in mobile opportunistic networks 移动机会网络中相互接触时间的代表性和准确表征

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-11-03 DOI: 10.1145/2507924.2507936

Enrique Hernández-Orallo, Juan-Carlos Cano, C. Calafate, P. Manzoni

{"title":"A representative and accurate characterization of inter-contact times in mobile opportunistic networks","authors":"Enrique Hernández-Orallo, Juan-Carlos Cano, C. Calafate, P. Manzoni","doi":"10.1145/2507924.2507936","DOIUrl":"https://doi.org/10.1145/2507924.2507936","url":null,"abstract":"A representative characterisation of inter-contact times between nodes is essential for the performance evaluation of mobile networks. The most common characterization of inter-contact times is based on the study of the aggregate distribution of contacts between individual pairs of nodes. The problem with this aggregate distribution is that it is not always representative of the individual pair distributions, especially in the short term and when the number of nodes in the network is high. Thus, deriving results from this characterisation, can lead to inaccurate performance evaluations results. In this paper, we propose and evaluate two new methods for characterising the inter-contact times distribution in mobile networks. We prove that these characterizations have a higher representativeness, thereby improving the accuracy of the derived performance results. For evaluating the precision of the different characterizations we use the epidemic routing protocol, which has an analytical performance expression that is based on a contact rate lambda. We derive from each of the characterizations the corresponding lambda values. Then, we compare the results obtained using the analytical expression with simulation results using both synthetic and real contact traces. It is shown that the new characterization methods are very accurate, even for reduced contact traces and high number of nodes.","PeriodicalId":445138,"journal":{"name":"Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126446872","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

Understanding the benefits of open access in Femtocell networks: stochastic geometric analysis in the uplink 了解Femtocell网络开放接入的好处:上行链路中的随机几何分析

Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems Pub Date : 2013-08-11 DOI: 10.1145/2507924.2507945

Wei Bao, B. Liang

引用次数: 10