{"title":"Induced fading for opportunistic communication in static sensor networks","authors":"D. Puccinelli, S. Giordano","doi":"10.1109/WOWMOM.2009.5282436","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282436","url":null,"abstract":"For low-power wireless links in rich scattering environments, multipath fading can easily dominate over the large-scale path loss. With the help of a link estimator that merges Channel State Information with datadriven feedback, it is possible to opportunistically leverage on positive fading states induced by human mobility to streamline routing in static low-end sensor networks.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115675118","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}
{"title":"Analytic study of Delay/Fault-Tolerant Mobile Sensor Networks (DFT-MSN's)","authors":"Yu Wang, Hongyi Wu, Ha Dang","doi":"10.1109/WOWMOM.2009.5282478","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282478","url":null,"abstract":"The Delay/Fault-TolerantMobile Sensor Network (DFTMSN) has been proposed recently for pervasive information gathering. A DFT-MSN consists of a number of wearable sensor nodes and high-end sink nodes, forming a loosely connected mobile sensor network. In this paper we introduce a generic queuing analytic model for DFT-MSN, where the inputs are the data delivery scheme employed and the nodal mobility pattern, while the outputs are the queuing characteristics of the network. Based on our analysis of the message arrival and service processes, we find that each individual sensor can be modeled as an M/M/1/K queue, and the whole network can be treated as a network of queues. Following Jackson network theory, major queuing characteristics of the network can thus be obtained. We also exemplify the generic analytic model with several representative data delivery schemes (including Direct Transmission, ZebraNet, and Replication-based Data Delivery) and nodal mobility patterns (such as uniform and power-law distributions). To validate our analytic model, we have carried out extensive simulations and observed a good match between analytic and simulation results.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"16 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124456024","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}
Alessio Guerrieri, Iacopo Carreras, F. Pellegrini, D. Miorandi, A. Montresor
{"title":"Distributed estimation of global parameters in delay-tolerant networks","authors":"Alessio Guerrieri, Iacopo Carreras, F. Pellegrini, D. Miorandi, A. Montresor","doi":"10.1016/j.comcom.2010.01.019","DOIUrl":"https://doi.org/10.1016/j.comcom.2010.01.019","url":null,"abstract":"","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118268506","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}
{"title":"Impact of packet aggregation on TCP performance in Wireless Mesh Networks","authors":"J. Karlsson, A. Kassler, A. Brunström","doi":"10.1109/WOWMOM.2009.5282435","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282435","url":null,"abstract":"Recently, Wireless Mesh Networks (WMNs) have attracted attention as a way to provide alternative Internet connectivity to rural areas or communities. In WMNs, wireless access points communicate with each other wirelessly, forming a true wireless mesh based access network of mesh relay nodes (MRNs). A major problem is, however, scalability of WMNs as well as MAC and PHY layer overhead for packet transmission. Capacity of WMNs can be increased significantly by aggregating (combining) several smaller packets into larger ones. This has previously been demonstrated for voice flows where many packets are of small sizes. TCP could also benefit, as by aggregating several packets together there is a reduced collision risk between TCP DATA and TCP ACKs in addition to the reduced MAC layer contention. However, the traffic pattern when TCP is used is completely different from when voice and UDP flows are used, which sometimes requires different aggregation designs. In this paper, we investigate the impact of packet aggregation on TCP in Wireless Mesh Networks. Using several different scenarios we demonstrate that packet aggregation can not only increase capacity for TCP in such networks but also improve fairness and reduce end-to-end delay.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124087629","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}
S. Mitilineos, G. Roumeliotis, K. S. Mougiakos, C. Capsalis, S. Thomopoulos
{"title":"Positioning accuracy enhancement using localization error modeling","authors":"S. Mitilineos, G. Roumeliotis, K. S. Mougiakos, C. Capsalis, S. Thomopoulos","doi":"10.1109/WOWMOM.2009.5282430","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282430","url":null,"abstract":"Location information is a cornerstone for the development of the so-called location-based services. A method for the enhancement of a localization system in terms of achieved accuracy is proposed herein, which can be applied to new as well as existing systems regardless of the underlying localization technique. The method is based on modelling the position measurement error introduced by the localization algorithm using a polynomial approximation approach. Measurements results demonstrate the applicability of the proposed technique in enhancing the achieved accuracy in a mixed indoor and outdoor environment.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125356030","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}
{"title":"Autonomous load balancing anycast routing protocol for wireless mesh networks","authors":"Sangsu Jung, Dujeong Lee, Malaz Kserawi, J. Rhee","doi":"10.1109/WOWMOM.2009.5282422","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282422","url":null,"abstract":"A wireless mesh network (WMN) is expected to be a key enabler for next generation networking due to its infrastructure-less strengths such as scalability, costefficient rapid deployment, and long distance communications. To boost the strength of WMNs, it is required to balance loads among multiple gateways as well as mesh nodes. However, there have been only few practical and easily-implementable solutions for load balancing of WMNs. In this paper, we propose a distributed autonomous load balancing routing mechanism for anycast WMNs where most traffic flows are for the Internet access through any mesh gateways. Without flooding of control messages, our protocol finds optimized paths implicitly considering geographical distance and a congestion degree based on analogy of physics theory, Poisson's equation and by use of a distributed form of a finite element method. Through simulations, we assess the performance of our protocol compared with the anycast modifications of traditional shortest-path routing and geographic routing under dynamically varying network scenarios.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123162723","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}
G. Vasilakis, G. Perantinos, Ioannis G. Askoxylakis, Nicolas Mechin, Vassilis Spitadakis, A. Traganitis
{"title":"Business opportunities and considerations on wireless mesh networks","authors":"G. Vasilakis, G. Perantinos, Ioannis G. Askoxylakis, Nicolas Mechin, Vassilis Spitadakis, A. Traganitis","doi":"10.1109/WOWMOM.2009.5282419","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282419","url":null,"abstract":"Wireless broadband and Metro WiFi are sweeping through municipalities, campuses, enterprises and public safety organizations creating a buzz of excitement and anticipation unseen in the communications arena since the advent of the Internet. In this networking landscape Mesh Networks are emerging as the wireless technology of choice, offering a cost-effective solution for providing low cost, reliable network access. Even as the potential of wireless mesh networks has already been well documented, it still remains to be seen whether this promising technology can achieve high market penetration in diverse application areas. In this paper we explore some well known success stories of wireless mesh solutions and identify market trends with regards to wireless communication and opportunities for business exploitation.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122571043","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}
{"title":"Multi-constrained path computation algorithms for Traffic Engineering over Wireless Mesh Networks","authors":"D. Adami, R. Garroppo, S. Giordano, L. Tavanti","doi":"10.1109/WOWMOM.2009.5282424","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282424","url":null,"abstract":"We propose a Traffic Engineering (TE) architecture to supply Wireless Mesh Networks (WMNs) with an efficient support of diverse applications with different Quality of Service (QoS) requirements. The proposed TE-WMN architecture is based on the MPLS technology. Its main goal is to provide TE capabilities so that a heterogeneous infrastructure, made of wired networks and WMNs, can be built and managed in a seamless manner. In the TE-WMN architecture, the Path Computation Element (PCE) is in charge of finding a path that satisfies the QoS requirements. This operation often requires solving a multi-constrained problem, which is known to be NP-complete. So far many approximated and heuristic solutions have been developed for and applied to wired networks. However, the different features of WMNs make it impractical to reuse those solutions. Hence we have devised two heuristic path computation algorithms (PCAs) with the goal of keeping the complexity very low and yet improving the performance of simple existing algorithms. An extensive set of tests has proved the good performance of the proposed PCAs.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122740744","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}
{"title":"Selecting vertical handover candidates in IEEE 802.11 mesh networks","authors":"S. Wiethölter, A. Wolisz","doi":"10.1109/WOWMOM.2009.5282426","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282426","url":null,"abstract":"The IEEE 802.11 working group currently integrates the option of mesh networking into its standard for WLANs. In addition to WLAN meshes, future wireless networks will be expanded by multiple heterogeneous access technologies such as UMTS and WiMax. These technologies differ greatly regarding medium access scheme, network capacity, QoS support, choice of data rates, and other various parameters such as power consumption and AAA aspects. Even though current research focuses on different network access selection and handover strategies maximizing the utilization for such a heterogeneous network, it is still an open issue how to select “inefficient” mobiles as vertical handover candidates. This work presents a novel scheme for the selection of handover candidates which is exemplarily discussed for an IEEE 802.11 WLAN mesh. After exploring the design rationale of the decision metric, simulation studies show the impact of single and multiple handovers on remaining users in the cell.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134021674","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}
{"title":"Optimised content accessibility in dynamic environments","authors":"A. Alexander, J. Dunlop, J. Bush","doi":"10.1109/WOWMOM.2009.5282440","DOIUrl":"https://doi.org/10.1109/WOWMOM.2009.5282440","url":null,"abstract":"Content stored on multiple devices owned by people can be accessed and shared via heterogeneous wired and wireless networks. Wireless networks frequently suffer link disconnections, an inherent feature in these types of dynamic environments. These link disconnections occur due to user mobility and wireless characteristics and result in reduced content accessibility to users. This paper presents a replication scheme, proposed to improve content accessibility in dynamic environments. This replication scheme re-organises content among multiple devices according to the connectivity between the devices and contextual information such as content importance. A demo of this replication scheme, carried out on two laptops, will show that important content items will always be made available to users in dynamic environments, through the deployment of this replication scheme.","PeriodicalId":155486,"journal":{"name":"2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131895219","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}