{"title":"Cross layer image optimization (CLIO) for wireless video transmission over 802.11ad multi-gigabit channels","authors":"A. Mobasher, G. W. Cook, Jalil Kamali","doi":"10.1109/CQR.2017.8289447","DOIUrl":"https://doi.org/10.1109/CQR.2017.8289447","url":null,"abstract":"Wireless display is known to be the future of display technology where a world full of inexpensive displays is used for streaming various multimedia applications. Due to the stringent requirements for high quality video transmission with low latency, a cross layer approach is needed to adapt to fast changes of the wireless link. Here, we consider cross layer approaches over IEEE 802.11ad multi-gigabit wireless networks to increase QoS guarantee for real time multimedia applications. This includes dynamic layering or partitioning on top of IEEE 802.11ad to switch among a set of procedures/parameters in the transmitter and receiver, including error correction technique, compression, or packetization on a packet by packet basis. We propose a layered-based compression designed for an unequal error protection for treating ordered bit streams of different layers differently. Dynamic importance aware tagging for packets is proposed as the third method. IEEE 802.11ad MAC and transport layer protocols and signaling are modified to adapt for importance levels and corresponding information exchange.","PeriodicalId":262563,"journal":{"name":"2017 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123914950","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}
N. Itoh, H. Kaneko, Akihito Kohiga, Takanori Iwai, H. Shimonishi
{"title":"Novel packet scheduling for supporting various real-time IoT applications in LTE networks","authors":"N. Itoh, H. Kaneko, Akihito Kohiga, Takanori Iwai, H. Shimonishi","doi":"10.1109/CQR.2017.8289445","DOIUrl":"https://doi.org/10.1109/CQR.2017.8289445","url":null,"abstract":"Recently, LTE networks are attracting a great deal of attention as a platform for real-time IoT applications. Individual devices such as vehicles, drones, and sensors can exchange real-time information with each other on this platform. For example, vehicles periodically provide each other with their real-time location information to avoid automobile collision. 3GPP stipulates that the deadline for vehicle-collision avoidance is 100 msec. In LTE networks, since the throughput of the wireless section fluctuates depending on the wireless channel quality, the time required for each direction differs. To support these various use cases on the platform, it is important to improve the total amount of application data that meets its deadline — we call the metric for this the goodput. However, in LTE networks, conventional MAC schedulers such as the Proportional Fair can obtain only very low goodput when the network load is increased. In this paper, we propose a novel packet scheduling method that adaptively prioritizes each item of application data on the basis of uplink/downlink deadlines and wireless channel quality by adjusting the deadlines. We evaluate our proposed method on NS-3 and find that our proposed method outperforms the conventional Proportional Fair method, which is the most implemented method on eNB.","PeriodicalId":262563,"journal":{"name":"2017 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132295843","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}
K. Nishimoto, M. Tadokoro, T. Fujiwara, Takashi Yamada, Toshikiyo Tanaka, Akiyuki Takeda, Takashi Inoue
{"title":"Predictive dynamic bandwidth allocation based on the correlation of the bi-directional traffic for cloud-based virtual PON-OLT","authors":"K. Nishimoto, M. Tadokoro, T. Fujiwara, Takashi Yamada, Toshikiyo Tanaka, Akiyuki Takeda, Takashi Inoue","doi":"10.1109/CQR.2017.8289443","DOIUrl":"https://doi.org/10.1109/CQR.2017.8289443","url":null,"abstract":"We propose a new access network architecture named Cloud-based PON. It separates the C-Plane/D-Plane functions of PON-OLT and consolidates the former in a datacenter. We identify the increase in upstream delay (due to the increase in Round Trip Time) as a technical obstacle to the realization of the concept. In order to solve this problem, we propose a predictive Dynamic Bandwidth Allocation algorithm that takes advantage of the correlation characteristic between the upstream and downstream traffic. Simulations verify that our proposal improves the delay and the bandwidth utilization compared to the existing related works.","PeriodicalId":262563,"journal":{"name":"2017 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121671956","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}
Hideaki Kinsho, Rie Tagyo, D. Ikegami, T. Matsuda, Akira Takahashi, T. Takine
{"title":"Heterogeneous delay tomography based on graph fourier transform in mobile networks","authors":"Hideaki Kinsho, Rie Tagyo, D. Ikegami, T. Matsuda, Akira Takahashi, T. Takine","doi":"10.1109/CQR.2017.8289444","DOIUrl":"https://doi.org/10.1109/CQR.2017.8289444","url":null,"abstract":"Network tomography enables us to monitor communication qualities of network components from end-to-end measurements. We consider a wide area mobile network including heterogeneous network components such as base stations, routers, and servers, and aim to estimate delays at these components. In the heterogeneous network environment, different types of network components have different statistical characteristics of delays. In this paper, we propose heterogeneous delay tomography in mobile networks, which is a new network tomography scheme based on graph Fourier transform (GFT). We assume that average delays of neighboring base stations are comparable and most of the servers have small delays. Under these assumptions, the proposed scheme estimates delays at base stations in the GFT domain and delays at servers with Compressed Sensing. We evaluate the performance of the proposed scheme with simulation experiments.","PeriodicalId":262563,"journal":{"name":"2017 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124667208","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":"Quality degradation localization in complex message processing networks","authors":"Yuncheng Zhu, H. Okita, S. Hanaoka","doi":"10.1109/CQR.2017.8289442","DOIUrl":"https://doi.org/10.1109/CQR.2017.8289442","url":null,"abstract":"Fault management of message processing networks requires fault localization on the higher layers. In this article, we propose a new fault localization technique for complex message processing networks, to locate specific network equipments that are highly correlated with the given service quality degradation occurrence. Our proposed technique utilizes the attempt and failure counters of message processing, and consists of two phases: processing failure model derivation and anomaly detection using the derived model. As a concrete example, the application in mobile core networks is described and evaluated. The simulation shows that our proposed technique is excellent in both accuracy and sensitivity.","PeriodicalId":262563,"journal":{"name":"2017 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116857055","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":"Effective new cache decision policy for breadcrumbs in content-centric networking","authors":"Yusaku Hayamizu, Akihisa Shibuya, M. Yamamoto","doi":"10.1109/CQR.2017.8289446","DOIUrl":"https://doi.org/10.1109/CQR.2017.8289446","url":null,"abstract":"Information-Centric Networking (ICN) has been proposed for efficient content distribution. ICN routers are generally equipped with cache storages and store incoming data packets temporally. In order to leverage as much total cache storages in a network as possible, the combination of routing policy and cache policy installed on the routers is dominant factor for performance. For routing policy, an efficient off-path forwarding method with in-network guidance, Breadcrumbs, has been proposed. In this paper, we propose a cache decision policy based on betweenness centrality and content popularity, which is suitable for Breadcrumbs. Our proposed cache decision policy makes popular contents located edge area of a network, which stabilizes popular cached contents. Moderate popular contents tend to be stored in core area, which induces in-network guided requests to encounter cached contents more frequently. Our performance evaluation results reveal that the combination of Breadcrumbs and our proposed cache decision policy improves cache hit performance compared to existing cache decision policies.","PeriodicalId":262563,"journal":{"name":"2017 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130364727","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}