Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523578
C. Mosquera
A large enough separation in the frequency domain between signals going in opposite directions is instrumental to facilitate the implementation of transceivers able to isolate the receiver from the high power transmitted signal. A more flexible allocation of spectrum requires the application of interference cancellation countermeasures. In this paper we address the digital processing involved in the realization of echo cancelling filters in the analog domain, designed to avoid the saturation of the receiver front-end due to the coupling of the transmitted signal and its out-of-band content. The design goal will be the reduction of the sampling rates, so large bandwidth interference waveforms can be attenuated working at sub-Nyquist rates.
{"title":"Wideband self-interference cancellation for better spectrum use","authors":"C. Mosquera","doi":"10.1109/WoWMoM.2016.7523578","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523578","url":null,"abstract":"A large enough separation in the frequency domain between signals going in opposite directions is instrumental to facilitate the implementation of transceivers able to isolate the receiver from the high power transmitted signal. A more flexible allocation of spectrum requires the application of interference cancellation countermeasures. In this paper we address the digital processing involved in the realization of echo cancelling filters in the analog domain, designed to avoid the saturation of the receiver front-end due to the coupling of the transmitted signal and its out-of-band content. The design goal will be the reduction of the sampling rates, so large bandwidth interference waveforms can be attenuated working at sub-Nyquist rates.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121767778","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523522
Hany Assasa, Adrian Loch, J. Widmer
The impact of frame aggregation on wireless network performance increases dramatically with higher data rates. The key problem is that the transmission time of packets decreases while the medium access, preamble and packet header overhead remain the same. Recent 802.11 standards address this issue using frame aggregation, i.e., grouping multiple data frames in a single transmission to reduce the overhead. This already provides substantial efficiency gains in networks operating in the 2.4 GHz and 5 GHz bands, and for future 60 GHz networks such as 802.11ad, gains are even more pronounced due to the order-of-magnitude higher data rates. In 802.11ad, frame aggregation becomes crucial to achieve the multi-gbps data rates that are possible in theory, since medium access overhead can be 20x larger than the time required to transmit a single packet. While frame aggregation is essential, it very much depends on the traffic patterns present in the wireless network, and a node may not always have enough packets in the transmit queue to achieve a sufficiently large aggregated frame size. In this paper, we investigate in which case nodes should wait to construct a larger aggregated packet before starting the channel access procedure. We present a simple waiting policy for the uplink case that either waits for a minimum number of packets or for a maximum amount of time, whichever comes first. For the downlink case, we utilize a maximum weight scheduling policy with a maximum waiting time. Our results show that both policies significantly improve medium utilization, thus increasing throughput and reducing end-to-end delay.
{"title":"Packet mass transit: Improving frame aggregation in 60 GHz networks","authors":"Hany Assasa, Adrian Loch, J. Widmer","doi":"10.1109/WoWMoM.2016.7523522","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523522","url":null,"abstract":"The impact of frame aggregation on wireless network performance increases dramatically with higher data rates. The key problem is that the transmission time of packets decreases while the medium access, preamble and packet header overhead remain the same. Recent 802.11 standards address this issue using frame aggregation, i.e., grouping multiple data frames in a single transmission to reduce the overhead. This already provides substantial efficiency gains in networks operating in the 2.4 GHz and 5 GHz bands, and for future 60 GHz networks such as 802.11ad, gains are even more pronounced due to the order-of-magnitude higher data rates. In 802.11ad, frame aggregation becomes crucial to achieve the multi-gbps data rates that are possible in theory, since medium access overhead can be 20x larger than the time required to transmit a single packet. While frame aggregation is essential, it very much depends on the traffic patterns present in the wireless network, and a node may not always have enough packets in the transmit queue to achieve a sufficiently large aggregated frame size. In this paper, we investigate in which case nodes should wait to construct a larger aggregated packet before starting the channel access procedure. We present a simple waiting policy for the uplink case that either waits for a minimum number of packets or for a maximum amount of time, whichever comes first. For the downlink case, we utilize a maximum weight scheduling policy with a maximum waiting time. Our results show that both policies significantly improve medium utilization, thus increasing throughput and reducing end-to-end delay.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126249273","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523574
S. K. Datta, Rui Costa, Jérôme Härri, C. Bonnet
Vehicles are becoming the next frontiers for Internet of Things (IoT) based platforms and services. Connected vehicles, Intelligent Transportation Systems (ITS) together with IoT technologies have the potential of unleashing efficient and more sustainable transportation system which is fast becoming an important societal challenge. This paper formulates several main research and engineering challenges for integrating connected vehicles into IoT ecosystems. The challenges include - (i) a suitable alternative of cloud platform to support real time connected vehicular scenarios, (ii) uniform description and data collection mechanisms from vehicular sensors, (iii) integrating smart devices into transport systems, (iv) uniform mechanism for data fusion and analytics and (v) integrating all heterogeneous elements into a standard IoT architecture for connected vehicles. To mitigate these challenges, we propose a novel IoT framework. The solutions, operational phases of the framework, software elements & their implementations and advantages are described in details. The building blocks of the framework are integrated into an oneM2M standard architecture. Finally, the paper concludes with best practice recommendations and lessons learnt from the prototyping.
{"title":"Integrating connected vehicles in Internet of Things ecosystems: Challenges and solutions","authors":"S. K. Datta, Rui Costa, Jérôme Härri, C. Bonnet","doi":"10.1109/WoWMoM.2016.7523574","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523574","url":null,"abstract":"Vehicles are becoming the next frontiers for Internet of Things (IoT) based platforms and services. Connected vehicles, Intelligent Transportation Systems (ITS) together with IoT technologies have the potential of unleashing efficient and more sustainable transportation system which is fast becoming an important societal challenge. This paper formulates several main research and engineering challenges for integrating connected vehicles into IoT ecosystems. The challenges include - (i) a suitable alternative of cloud platform to support real time connected vehicular scenarios, (ii) uniform description and data collection mechanisms from vehicular sensors, (iii) integrating smart devices into transport systems, (iv) uniform mechanism for data fusion and analytics and (v) integrating all heterogeneous elements into a standard IoT architecture for connected vehicles. To mitigate these challenges, we propose a novel IoT framework. The solutions, operational phases of the framework, software elements & their implementations and advantages are described in details. The building blocks of the framework are integrated into an oneM2M standard architecture. Finally, the paper concludes with best practice recommendations and lessons learnt from the prototyping.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124860752","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523566
Francesco Restuccia, Srinivas Chakravarthi Thandu, S. Chellappan, Sajal K. Das
In emergency scenarios such as earthquakes, fires, avalanches, or building collapses, it is necessary to discover people trapped under debris or anyway hidden from eyesight. In this paper, we propose RescuePal, an energy-efficient smartphone-based system that does not require any interaction by the victim and does not use energy-expensive GPS. RescuePal leverages a wake-up system based on sounds that activates the WiFi interface of the victim's smartphone only when the rescuer is close, to save energy. After presenting the system, we mathematically formulate an optimization problem so as to find the sound frequency and power level that minimizes WiFi false activations and yet guarantees high discovery efficiency. RescuePal has been implemented on off-the-shelf Android-based devices, and its performance has been evaluated on a realistic use-case scenario of victims inside a building. Finally, the energy consumption of RescuePal has been calculated using the Power Monitor hardware tool. Results demonstrate that RescuePal is highly effective and saves more than 60% of energy with respect to an approach based only on WiFi.
{"title":"RescuePal: A smartphone-based system to discover people in emergency scenarios","authors":"Francesco Restuccia, Srinivas Chakravarthi Thandu, S. Chellappan, Sajal K. Das","doi":"10.1109/WoWMoM.2016.7523566","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523566","url":null,"abstract":"In emergency scenarios such as earthquakes, fires, avalanches, or building collapses, it is necessary to discover people trapped under debris or anyway hidden from eyesight. In this paper, we propose RescuePal, an energy-efficient smartphone-based system that does not require any interaction by the victim and does not use energy-expensive GPS. RescuePal leverages a wake-up system based on sounds that activates the WiFi interface of the victim's smartphone only when the rescuer is close, to save energy. After presenting the system, we mathematically formulate an optimization problem so as to find the sound frequency and power level that minimizes WiFi false activations and yet guarantees high discovery efficiency. RescuePal has been implemented on off-the-shelf Android-based devices, and its performance has been evaluated on a realistic use-case scenario of victims inside a building. Finally, the energy consumption of RescuePal has been calculated using the Power Monitor hardware tool. Results demonstrate that RescuePal is highly effective and saves more than 60% of energy with respect to an approach based only on WiFi.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133542375","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523562
Tobias Marktscheffel, Wolfram Gottschlich, Wolfgang Popp, Philemon Werli, S. D. Fink, A. Bilzhause, H. Meer
In the Internet of Things (IoT), security is important and challenging; however, it is often neglected. This paper presents a smart home scenario, together with its requirements for a secure and user friendly mutual authentication protocol. Protocols developed for the internet are often not applicable to the Internet of Things due to hardware limitations and physical inaccessibility of devices. To tackle the challenge of a usable and secure device authentication in the area of the IoT, a QR code based mutual authentication protocol is proposed. The protocol supports two operation modes to handle different hardware configurations with respect to cameras and displays. Both operation modes are secure against attacks within the proposed attacker model. The protocol can also be used to exchange the public keys between two parties, in order to establish a secure channel without a trusted third party.
{"title":"QR code based mutual authentication protocol for Internet of Things","authors":"Tobias Marktscheffel, Wolfram Gottschlich, Wolfgang Popp, Philemon Werli, S. D. Fink, A. Bilzhause, H. Meer","doi":"10.1109/WoWMoM.2016.7523562","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523562","url":null,"abstract":"In the Internet of Things (IoT), security is important and challenging; however, it is often neglected. This paper presents a smart home scenario, together with its requirements for a secure and user friendly mutual authentication protocol. Protocols developed for the internet are often not applicable to the Internet of Things due to hardware limitations and physical inaccessibility of devices. To tackle the challenge of a usable and secure device authentication in the area of the IoT, a QR code based mutual authentication protocol is proposed. The protocol supports two operation modes to handle different hardware configurations with respect to cameras and displays. Both operation modes are secure against attacks within the proposed attacker model. The protocol can also be used to exchange the public keys between two parties, in order to establish a secure channel without a trusted third party.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128840139","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523537
Özgü Alay, Andra Lutu, Rafael García, Miguel Peón Quirós, V. Mancuso, T. Hirsch, Tobias Dely, J. Werme, Kristian Evensen, A. Hansen, Stefan Alfredsson, J. Karlsson, A. Brunström, Ali Safari Khatouni, M. Mellia, M. Marsan, R. Monno, H. Lønsethagen
Mobile broadband (MBB) networks underpin numerous vital operations of the society and are arguably becoming the most important piece of the communications infrastructure. In this demo paper, our goal is to showcase the potential of a novel multi-homed MBB platform for measuring, monitoring and assessing the performance of MBB services in an objective manner. Our platform, MONROE, is composed of hundreds of nodes scattered over four European countries and a backend system that collects the measurement results. Through a user-friendly web client, the experimenters can schedule and deploy their experiments. The platform further embeds traffic analysis tools for real-time traffic flow analysis and a powerful visualization tool.
{"title":"Measuring and assessing mobile broadband networks with MONROE","authors":"Özgü Alay, Andra Lutu, Rafael García, Miguel Peón Quirós, V. Mancuso, T. Hirsch, Tobias Dely, J. Werme, Kristian Evensen, A. Hansen, Stefan Alfredsson, J. Karlsson, A. Brunström, Ali Safari Khatouni, M. Mellia, M. Marsan, R. Monno, H. Lønsethagen","doi":"10.1109/WoWMoM.2016.7523537","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523537","url":null,"abstract":"Mobile broadband (MBB) networks underpin numerous vital operations of the society and are arguably becoming the most important piece of the communications infrastructure. In this demo paper, our goal is to showcase the potential of a novel multi-homed MBB platform for measuring, monitoring and assessing the performance of MBB services in an objective manner. Our platform, MONROE, is composed of hundreds of nodes scattered over four European countries and a backend system that collects the measurement results. Through a user-friendly web client, the experimenters can schedule and deploy their experiments. The platform further embeds traffic analysis tools for real-time traffic flow analysis and a powerful visualization tool.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128907822","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523570
A. Reis, S. Sargento
The ability to predict the behavior of cars that are parked in an urban area can be very useful to the development of vehicular networks that leverage these parked cars. In this paper, we analyze the mobility patterns of people living in US cities who use cars as their primary means of transportation. We process and analyze survey data from the metropolitan areas of Atlanta, Chicago, and Knoxville, to extract statistics on the parking behaviors of individual cars.
{"title":"Statistics of parked cars for urban vehicular networks","authors":"A. Reis, S. Sargento","doi":"10.1109/WoWMoM.2016.7523570","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523570","url":null,"abstract":"The ability to predict the behavior of cars that are parked in an urban area can be very useful to the development of vehicular networks that leverage these parked cars. In this paper, we analyze the mobility patterns of people living in US cities who use cars as their primary means of transportation. We process and analyze survey data from the metropolitan areas of Atlanta, Chicago, and Knoxville, to extract statistics on the parking behaviors of individual cars.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117052170","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523531
Francisco Martín-Fernández, P. Caballero-Gil, C. Caballero-Gil
The need to improve road traffic management is evident worldwide. Growing congestions on the roads along with a gradual increase of pollution and concern for improving traffic safety have prompted to explore the potential of the Intelligent Transportation Systems through numerous research projects funded by public entities and/or the automotive industry. However, due to various reasons, including the global economic crisis, such a goal has not been reached till now. Thus, the efforts now should be directed toward the development of low-cost solutions that help to fulfill the main objectives of Vehicular Ad-hoc Networks to support safety and non-safety vehicular applications. This paper proposes the deployment of a Vehicular Ad-hoc Network based only on mobile devices for the communication between vehicles. This proposed scheme uses a hybrid architecture network that combines an online mode with an offline mode, depending on the existence of Internet access. The proposal described here has been developed for the Android platform and the obtained results are promising.
{"title":"An EXperimental Hybrid wIrelesS platform for vehicular networks","authors":"Francisco Martín-Fernández, P. Caballero-Gil, C. Caballero-Gil","doi":"10.1109/WoWMoM.2016.7523531","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523531","url":null,"abstract":"The need to improve road traffic management is evident worldwide. Growing congestions on the roads along with a gradual increase of pollution and concern for improving traffic safety have prompted to explore the potential of the Intelligent Transportation Systems through numerous research projects funded by public entities and/or the automotive industry. However, due to various reasons, including the global economic crisis, such a goal has not been reached till now. Thus, the efforts now should be directed toward the development of low-cost solutions that help to fulfill the main objectives of Vehicular Ad-hoc Networks to support safety and non-safety vehicular applications. This paper proposes the deployment of a Vehicular Ad-hoc Network based only on mobile devices for the communication between vehicles. This proposed scheme uses a hybrid architecture network that combines an online mode with an offline mode, depending on the existence of Internet access. The proposal described here has been developed for the Android platform and the obtained results are promising.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125980279","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523501
Emma Fitzgerald, M. Pióro
We have previously presented Intent, a medium access control scheme for WLANs based on cooperative, distributed, non-binding frame scheduling. The main idea behind Intent is “intention sharing”-a mechanism that allows a node to be aware of transmissions previously scheduled by its neighbors. We now extend this scheme to networks with hidden nodes. We give a formulation of the scheduling problem and solve for the optimal solution using mixed-integer programming in a range of scenarios covering both mesh and infrastructure networks of varying density. We also provide an algorithmic solution and perform simulations using four variants of this, comparing the results with both the optimal solution and standard 802.11. Our algorithmic solution gives significantly better performance than 802.11 and comes within 1.1 times optimal performance when full, two-hop scheduling information is available. In addition, we show that it is not necessary to exchange complete scheduling information in order to perform distributed scheduling effectively but rather a conflict resolution or avoidance mechanism combined with non-binding schedules allows for similar performance with only a single round of information exchange between neighbouring nodes.
{"title":"Performance evaluation of an intention sharing MAC scheme in wireless LANs with hidden nodes","authors":"Emma Fitzgerald, M. Pióro","doi":"10.1109/WoWMoM.2016.7523501","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523501","url":null,"abstract":"We have previously presented Intent, a medium access control scheme for WLANs based on cooperative, distributed, non-binding frame scheduling. The main idea behind Intent is “intention sharing”-a mechanism that allows a node to be aware of transmissions previously scheduled by its neighbors. We now extend this scheme to networks with hidden nodes. We give a formulation of the scheduling problem and solve for the optimal solution using mixed-integer programming in a range of scenarios covering both mesh and infrastructure networks of varying density. We also provide an algorithmic solution and perform simulations using four variants of this, comparing the results with both the optimal solution and standard 802.11. Our algorithmic solution gives significantly better performance than 802.11 and comes within 1.1 times optimal performance when full, two-hop scheduling information is available. In addition, we show that it is not necessary to exchange complete scheduling information in order to perform distributed scheduling effectively but rather a conflict resolution or avoidance mechanism combined with non-binding schedules allows for similar performance with only a single round of information exchange between neighbouring nodes.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114871301","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}
Pub Date : 2016-06-21DOI: 10.1109/WoWMoM.2016.7523548
Yang Liu, A. Bashar, Fan Li, Yu Wang, Kun Liu
Device-to-device (D2D) is a new paradigm that enhances network performance by offering a wide variety of advantages over traditional cellular networks, e.g., efficient spectral usage and extended network coverage. Efficient data dissemination is indispensable for supporting many D2D applications such as content distribution and location-aware advertisement. In this work, we study the problem of multi-copy data dissemination with probabilistic delay constraint in mobile opportunistic D2D networks. We first formally formulate the problem and introduce a centralized heuristic algorithm which aims to discover a graph for multicasting, in order to meet delay constraint and achieve low communication cost. While the centralized solution can be adapted to a distributed implementation, it is inefficient in a mobile opportunistic D2D network, since it intends to apply a deterministic transmission strategy in a nondeterministic network by delivering all data packets via a predetermined route. Based on such observation, we develop a distributed online algorithm based on the optimal stopping strategy that makes an efficient decision on every transmission opportunity. Extensive simulations under real-world traces and random walk mobility model are carried out to learn the performance trend of the proposed schemes under various network settings.
{"title":"Multi-copy data dissemination with probabilistic delay constraint in mobile opportunistic device-to-device networks","authors":"Yang Liu, A. Bashar, Fan Li, Yu Wang, Kun Liu","doi":"10.1109/WoWMoM.2016.7523548","DOIUrl":"https://doi.org/10.1109/WoWMoM.2016.7523548","url":null,"abstract":"Device-to-device (D2D) is a new paradigm that enhances network performance by offering a wide variety of advantages over traditional cellular networks, e.g., efficient spectral usage and extended network coverage. Efficient data dissemination is indispensable for supporting many D2D applications such as content distribution and location-aware advertisement. In this work, we study the problem of multi-copy data dissemination with probabilistic delay constraint in mobile opportunistic D2D networks. We first formally formulate the problem and introduce a centralized heuristic algorithm which aims to discover a graph for multicasting, in order to meet delay constraint and achieve low communication cost. While the centralized solution can be adapted to a distributed implementation, it is inefficient in a mobile opportunistic D2D network, since it intends to apply a deterministic transmission strategy in a nondeterministic network by delivering all data packets via a predetermined route. Based on such observation, we develop a distributed online algorithm based on the optimal stopping strategy that makes an efficient decision on every transmission opportunity. Extensive simulations under real-world traces and random walk mobility model are carried out to learn the performance trend of the proposed schemes under various network settings.","PeriodicalId":187747,"journal":{"name":"2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114925011","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}
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