2015 8th IFIP Wireless and Mobile Networking Conference (WMNC)最新文献_第2页

Validation of the NS-3 Interference Model for IEEE802.11 Networks 针对IEEE802.11网络的NS-3干扰模型验证

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.40

P. Fuxjäger, Stefan Rührup

引用次数: 23

Anticipatory Download Scheduling in Wireless Video Streaming with Uncertain Data Rate Prediction 数据速率预测不确定的无线视频流预期下载调度

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.21

Martin Dräxler, J. Blobel, H. Karl

{"title":"Anticipatory Download Scheduling in Wireless Video Streaming with Uncertain Data Rate Prediction","authors":"Martin Dräxler, J. Blobel, H. Karl","doi":"10.1109/WMNC.2015.21","DOIUrl":"https://doi.org/10.1109/WMNC.2015.21","url":null,"abstract":"Video streaming is in high demand by mobile users. In wireless networks the unreliable wireless channel leads to two major problems. Low available data rates degrade video quality and interrupt the playback when a user cannot sufficiently fill its local playout buffer: playback interruptions occur. In contrast, high available data rates cause common greedy buffering schemes to buffer too much data. Such over-buffering wastes wireless resources. Assuming that we can predict future data rates, we plan the quality and download time of video segments ahead. This anticipatory download scheduling avoids playback interruptions by downloading a large number of segments before a drop in available data rate occurs, without wasting wireless capacity by excessive buffering. In previous work we assumed a perfect prediction of future available data rates. Here we assume uncertain predictions, which are subject to errors and are only available for a limited future. We developed a stochastical model for prediction errors and implemented a new scheduling algorithm that is aware of prediction errors. Our results show that anticipatory download scheduling is feasible even with uncertain predictions and reduces playback interruptions while delivering a high video quality.","PeriodicalId":240086,"journal":{"name":"2015 8th IFIP Wireless and Mobile Networking Conference (WMNC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126918382","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: 2

Sum-Rate Analysis of Cell Edge Users under Cooperative NOMA 协同NOMA下小区边缘用户的和速率分析

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.19

Namadev Bhuvanasundaram, H. Nguyen, R. Trestian, Quoc-Tuan Vien

引用次数: 7

Inter-domain Mobility with LISP-MN -- A Performance Comparison with MIPv6 基于LISP-MN的域间迁移——与MIPv6的性能比较

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.9

Musab Isah, C. Edwards

引用次数: 5

Performance of Fixed Gain Relaying Systems over MIMO Fading Rayleigh Channels 固定增益中继系统在MIMO衰落瑞利信道上的性能

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.13

Murad A. Abusubaih, A. A. Tabaneh

引用次数: 0

Distribution of Pseudonym Certificates via Bursts for VANETs with Low and Medium Mobility 中低流动性vanet的假名证书的爆发分发

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.16

Sebastian Bittl, Berke Aydinli, Karsten Roscher

{"title":"Distribution of Pseudonym Certificates via Bursts for VANETs with Low and Medium Mobility","authors":"Sebastian Bittl, Berke Aydinli, Karsten Roscher","doi":"10.1109/WMNC.2015.16","DOIUrl":"https://doi.org/10.1109/WMNC.2015.16","url":null,"abstract":"Wireless intelligent transport systems based on Car-to-X communication technology are about to enter the mass market in upcoming years. Thereby, efficient and reliable security systems are a core point of concern in system design. Currently regarded digital signature schemes using pseudonym certificates can introduce significant overhead into the highly bandwidth restricted system. Thus, mechanisms to optimize the efficiency of the security mechanisms in regard to authentication delay and channel load are required. Prior work has focused on scenarios with high node mobility, e.g., Freeways. However, bandwidth conserving mechanisms are also required for urban low and medium mobility scenarios to enable foreseen extension of the wireless network for the many other volatile road users like pedestrians. Hence, an approach for efficient pseudonym certificate distribution in urban scenarios is provided in this work. The given simulation based environment shows that it can enhance cooperative awareness while limiting used bandwidth. Thus, it can be regarded as well suitable for future urban intelligent transport systems.","PeriodicalId":240086,"journal":{"name":"2015 8th IFIP Wireless and Mobile Networking Conference (WMNC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115681749","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: 1

1-Movable Dominating Set in Wireless Sensor Networks 无线传感器网络中的可移动控制集

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.46

Louisa Harutyunyan

引用次数: 0

Efficient Delay-Constrained Data Collection in Wireless Sensor Networks Using Mobile Sinks 基于移动接收器的无线传感器网络延迟约束数据高效采集

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.29

C. Konstantopoulos, Nikolaos Vathis, G. Pantziou, D. Gavalas

引用次数: 5

Dynamic Mesh-Based Location Service in WSANs by a Team of Robots 基于动态网格的无线局域网机器人团队定位服务

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.36

Yuan Zhou, V. Narasimhan, M. Stojmenovic, A. Nayak

引用次数: 0

Security Overhead and Its Impact in VANETs 安全开销及其对vanet的影响

2015 8th IFIP Wireless and Mobile Networking Conference (WMNC) Pub Date : 2015-10-01 DOI: 10.1109/WMNC.2015.17

Sebastian Bittl, Karsten Roscher, A. Gonzalez

{"title":"Security Overhead and Its Impact in VANETs","authors":"Sebastian Bittl, Karsten Roscher, A. Gonzalez","doi":"10.1109/WMNC.2015.17","DOIUrl":"https://doi.org/10.1109/WMNC.2015.17","url":null,"abstract":"Vehicular ad hoc networks (VANETs), often called Car2X communication systems, are about to enter the mass market in upcoming years. They are intended to increase traffic safety by enabling new safety critical driver assistance systems. This also means that strong security mechanisms are required to safeguard communication within VANETs. However, standardized security mechanisms lead to significant overhead in terms of data rate requirement and delay. Prior work has focused on reducing the overhead by advanced strategies for pseudonym and authorization authority certificate exchange. However, we find that this is not enough to enable reliable message exchange in VANETs. Various other sources of overhead caused by security mechanisms in VANETs are identified in the provided analysis. Thereby, we find cross layer and cross message dependencies. In combination with the non-fragmentation property of VANET messages, such dependencies are discovered to lead to massive dropping of packets due to maximum size violations at low protocol layers. Thus, we develop a method for cross layer on demand content assembling for VANET messages, which can avoid the size limit violations without preventing individual layers from disseminating their variable length data sets.","PeriodicalId":240086,"journal":{"name":"2015 8th IFIP Wireless and Mobile Networking Conference (WMNC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128773122","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: 10