Mobile Computing and Communications Review最新文献

{"title":"Cloud mobile gaming: modeling and measuring user experience in mobile wireless networks","authors":"Shaoxuan Wang, S. Dey","doi":"10.1145/2331675.2331679","DOIUrl":"https://doi.org/10.1145/2331675.2331679","url":null,"abstract":"With the evolution of mobile devices and networks, and the growing trend of mobile Internet access, rich multi-player gaming using mobile devices, similar to PC-based Internet games, has tremendous potential and interest. However, the current client-server architecture for PC-based Internet games, where most of the storage and computational burden of the game lies with the client device, does not work with mobile devices, constraining mobile gaming to either downloadable, single player games, or very light non-interactive versions of the rich multi-player Internet games. In this article, we study a cloud server based mobile gaming approach, termed Cloud Mobile Gaming (CMG), where the burden of executing the gaming engine is put on cloud servers, and the mobile devices just communicate the users' gaming commands to the servers. We analyze the factors affecting the Quality of user Experience (QoE) using the CMG approach, including the game genres, video settings, the conditions of server and client, and the conditions of the wireless network. A Mobile Gaming User Experience (MGUE) model is developed and validated through controlled subjective testing. We also develop a prototype for in-service measuring MGUE, and then use it to characterize user experience achievable using the CMG approach in a mobile cellular network. The MGUE model developed and validated in this article will be helpful for researchers and service providers to develop and assess the performance of future cloud mobile gaming techniques and services.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"34 1","pages":"10-21"},"PeriodicalIF":0.0,"publicationDate":"2012-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88029873","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":"Expert testimony: Martha Steenstrup","authors":"A. Sani","doi":"10.1145/2169077.2169080","DOIUrl":"https://doi.org/10.1145/2169077.2169080","url":null,"abstract":"Welcome to the Expert Testimony series, where we interview the leading researchers in mobile computing and wireless networking to get their perspectives on their work, and their thoughts on the evolution of the field.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"23 1","pages":"16-25"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85787899","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":"MobiCom 2011 poster: investigating mobility heterogeneity for relay node selection in opportunistic networks","authors":"A. Hess, K. Hummel","doi":"10.1145/2169077.2169084","DOIUrl":"https://doi.org/10.1145/2169077.2169084","url":null,"abstract":"Opportunistic networking is a mobile communication paradigm utilizing spontaneously arising networking options for data forwarding. Although node movement affects the forwarding capabilities of these nodes, the utilization of this knowledge for local forwarding decisions is still not sufficiently exploited and a major aim of our approach. We describe node heterogeneity along movement features capturing urban user movement and how to derive movement activities from these features. Hereby, we summarize main results of an experimental study based on real-world GPS data of 252 daily trips. In a second step, we explain how movement characteristics of mobile nodes may influence data dissemination and present first simulation results indicating that the heterogeneity in movement activities indeed influences the performance of opportunistic data dissemination.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"35 1","pages":"40-42"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74932683","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":"MobiCom 2011 poster: a robust technique for WLAN device-free passive motion detection","authors":"Ahmed E. Kosba, Ahmed Saeed, M. Youssef","doi":"10.1145/2169077.2169085","DOIUrl":"https://doi.org/10.1145/2169077.2169085","url":null,"abstract":"We present RASID: a system capable of detecting passive human motion using the already installed indoor wireless infrastructure. RASID applies a statistical anomaly detection technique to detect motion inside indoor environments by monitoring the changes in the wireless signal strength. The system also adapts to the environment changes and applies decision refinement procedures for enhancing the detection accuracy. Our results show that RASID can achieve an accurate detection capability, reaching 6% miss detection rate and 8% false alarm rate in a typical environment.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"69 1","pages":"43-45"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76388603","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":"MobiCom 2011 poster: vehicular mobility in large-scale urban environments?","authors":"Sandesh Uppoor, M. Fiore","doi":"10.1145/2169077.2169089","DOIUrl":"https://doi.org/10.1145/2169077.2169089","url":null,"abstract":"Vehicles are envisioned to become real communication hubs in the near future, thanks to the growing presence of radio interfaces on the cars as well as to the increasing utilization of smartphones and tablets by their passengers. In such a context, simulation remains the mean of choice for the evaluation of large-scale deployments of new vehicular networking solutions. In order to evaluate the effect of high-speed, strongly-correlated and constrained movements of vehicles on vehicular network connectivity, we present a synthetic dataset of the car traffic over a typical 24 hours in a 400-km2 region around Köln, Germany.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"76 1","pages":"55-57"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90790566","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":"MobiCom 2011 poster: AirTrack: locating non-WiFi interferers using commodity WiFi hardware","authors":"Ashish Patro, Shravan K. Rayanchu, Suman Banerjee","doi":"10.1145/2169077.2169088","DOIUrl":"https://doi.org/10.1145/2169077.2169088","url":null,"abstract":"Recent studies [1, 4, 5] have shown that interference due to non-WiFi RF devices has become a major problem in today’s 802.11 networks. In our own experiments, we observed that high powered interferers like analog cordless phones, video cameras can cause an 802.11 link to experience complete loss of connectivity. Figure 1 shows an example of non-WiFi RF activity in a university cafe, where a FHSS cordless phone and a Microwave oven caused increased interference. Knowledge about the active non-WiFi RF devices and their physical locations can help the WLAN administrators take corrective actions (e.g., bringing down rogue non-WiFi transmitters, or by altering some of the operational wireless parameters). In this paper, we focus on the problem of locating the non-WiFi interferers in a WLAN without using any specialized hardware. Specifically, we try to answer the following question: “How can a system using only WiFi nodes accurately locate non-WiFi RF devices? Further, how can it do this in real-time, in a non-intrusive manner, and without the help of any additional sensors or hardware?\" In our attempt to answer the above question, we present AirTrack — a system to locate non-WiFi devices using commodity WiFi hardware. AirTrack is non-intrusive, as it employs a passive approach (i.e., it does not introduce any additional traffic into the wireless medium) and localizes nonWiFi devices in real-time. Goals and challenges. Locating non-WiFi transmitters using only WiFi hardware is particularly challenging because WiFi nodes cannot decode the transmissions from these devices (e.g., Microwaves, video cameras, Xbox). While it is possible to equip each WiFi node with additional hardware (e.g., a Bluetooth interface to detect Bluetooth devices, a ZigBee interface to detect ZigBee devices), such a solution is clearly not scalable. In some cases, doing so might not even help detect the interferer because the received interference power might be simply due to unintended radiations from the device (e.g., Microwave ovens). With AirTrack, we first wish to detect and uniquely identify the presence of multiple, simultaneously operating non-WiFi devices using limited signal information (e.g., RSS per sub-carrier) provided by commodityWiFi cards. For example, if two Bluetooth devices and an analog phone are operating simultaneously, AirTrack should be able to detect all the three device instances. We note that detecting the presence","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"11 1","pages":"52-54"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88288092","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":"A retrospective look at the UMass DOME mobile testbed","authors":"H. Soroush, N. Banerjee, M. Corner, B. Levine, Brian Lynn","doi":"10.1145/2169077.2169079","DOIUrl":"https://doi.org/10.1145/2169077.2169079","url":null,"abstract":"In this paper we describe the evolution of DOME, a diverse outdoor testbed for mobile experimentation. In addition, while highlighting the challenges faced in construction of DOME, we describe a concrete set of scientific results derived from this experience in a retrospective study. First, we argue that a broad range of mobility experiments could be performed in a testbed which provides the properties of temporal, technological, and spatial diversity. We demonstrate these properties in our testbed through analysis of data collected from DOME over a period of four years. Second, we crystallize a set of design principles that others should use when constructing testbeds of their own, including those related to deploying and managing a diverse testbed, distributing experiments remotely, and fostering collaborations among testbed stakeholders. Finally, using traces collected by DOME, we provide insights into several important problems in mobile systems research.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"47 1","pages":"2-15"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90269088","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":"A virtualization architecture for mobile WiMAX networks","authors":"G. Bhanage, I. Seskar, D. Raychaudhuri","doi":"10.1145/2169077.2169082","DOIUrl":"https://doi.org/10.1145/2169077.2169082","url":null,"abstract":"Systems virtualization offers convenient means for sharing networking infrastructure while improving its utilization. This study addresses the challenges of virtualizing a commercial off-the-shelf 4G mobileWiMAX basestation. We highlight additions and modifications needed in theWiMAX network architecture for supporting multiple simultaneous virtual basestations on a single physical basestation. The most prominent features provided by the proposed virtual basestation framework include the capability to perform all frame switching at layer-2, and control mechanisms to provide isolation across slices needed to ensure experiment repeatability. By prototyping on a commercial WiMAX radio, this paper shows the usage of the virtual basestation system for housing mobile virtual network operators and testbeds alike. A use case is shown where the virtual basestation design is used to evaluate mobile handoff schemes. Another usage case is shown for optimizing a video delivery on the edge. The video delivery use case is used to show performance improvements of up to 5dB in the PSNR. Evaluation of prototype shows a significant improvement in the slice isolation, with aggregate throughput improvements of up to 192% achievable through fair resource allocation.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"38 1","pages":"26-37"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72791708","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":"Name-based Shim6: a name-based approach to host mobility","authors":"Zhongxing Ming, J. Ubillos, Mingwei Xu","doi":"10.1145/2169077.2169086","DOIUrl":"https://doi.org/10.1145/2169077.2169086","url":null,"abstract":"It has long been ill to manage mobility in IP networks. In this paper we propose namebased sockets and apply a name-based approach to improve Shim6 (a host-based multihoming solution) to support host mobility. We show how the name-based approach intrinsically transforms Shim6 into a mobility solution and how the existing infrastructure is sufficient to provide the necessary signaling to support unilateral and bilateral mobility. An implementation evaluation shows that it achieves promising recovery time in both scenarios.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"19 1","pages":"46-48"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90339617","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":"MobiCom 2011 poster: contact rule-based decision for mobile social networking testbed","authors":"Sungwook Moon, A. Helmy","doi":"10.1145/2169077.2169087","DOIUrl":"https://doi.org/10.1145/2169077.2169087","url":null,"abstract":"We propose contact rule-based decision criteria to embed on autonomous mobile nodes to mimic mobile users' community contact pattern. To evaluate the closeness to real-world contact pattern, we compare the simulation results to the contact trace of WLAN users from the University of Florida. Our results show that the contact rule-based decision with overlapping community information matches real-world data in terms of contact duration and the periodical contact pattern.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":"14 1","pages":"49-51"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89954202","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}