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2009 Second International Workshop on Cross Layer Design最新文献

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Content-aware scheduling for video streaming over HSDPA networks HSDPA网络上视频流的内容感知调度
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156533
L. Superiori, M. Wrulich, P. Svoboda, M. Rupp, J. Fabini, W. Karner, M. Steinbauer
{"title":"Content-aware scheduling for video streaming over HSDPA networks","authors":"L. Superiori, M. Wrulich, P. Svoboda, M. Rupp, J. Fabini, W. Karner, M. Steinbauer","doi":"10.1109/IWCLD.2009.5156533","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156533","url":null,"abstract":"In this article we propose the implementation of a content-aware cross-layer optimization for video streaming in HSDPA networks. The video packets are marked at the IP layer based on the impact on the quality of experience at the application layer. In the core network these packets are mapped onto multiple logical paths with different quality of service accordingly to their marking. The proposed approach complies with the 3GPP releases newer than R99. It has been tested with an HSDPA system level simulator and H-264 video traces. The results of simulations show that the proposed content aware scheduling delivers over 1 dB Y-PSNR improvement compared to the standard round robin.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125479539","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: 9
Cross-layer design of multi-rate wireless networks based on link layer truncated ARQ 基于链路层截断ARQ的多速率无线网络跨层设计
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156523
J. Ramis, G. Femenias, L. Carrasco
{"title":"Cross-layer design of multi-rate wireless networks based on link layer truncated ARQ","authors":"J. Ramis, G. Femenias, L. Carrasco","doi":"10.1109/IWCLD.2009.5156523","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156523","url":null,"abstract":"A Markov chain-based queueing model is developed for a cross-layer performance analysis of a wireless network based on adaptive modulation and coding (AMC) at the physical layer and truncated automatic repeat request (ARQ) error control at the data link layer. This model generalizes previous results by using a first-order two-dimensional Markov chain to model the wireless fading channel. Furthermore, it allows each frame at the physical layer to contain an arbitrary number of packets from the data link layer and still ensuring that, concerning the acknowledged packets, the transmit buffer operates in first-in first-out (FIFO) mode. Analytical expressions for performance metrics such as throughput, average packet delay and packet loss rate, both due to buffer overflow and due to exceeding the maximum number of allowed retransmissions, are derived. These expressions are then used to formulate a constrained optimization problem to maximize the system throughput under the prescribed QoS constraints.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129266610","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: 4
Cognitive radio by photonic analog-to-digital conversion sensing 基于光子模数转换传感的认知无线电
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156537
R. Llorente, M. Morant, J. Puche, T. Alves, J. Romme
{"title":"Cognitive radio by photonic analog-to-digital conversion sensing","authors":"R. Llorente, M. Morant, J. Puche, T. Alves, J. Romme","doi":"10.1109/IWCLD.2009.5156537","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156537","url":null,"abstract":"This paper proposes a photonic analog-to-digital converter (Ph-ADC) that can be used for localization, fingerprinting and spectral management applications, indicated for cognitive radio applications. The presented approach comprises a time-stretch Ph-ADC with an optimum configuration of optical and electrical amplification stages. This technique increases the bandwidth and sensibility of electronic ADC and can be used for detecting signals with extremely low power. The usage of the proposed Ph-ADC jointly with cognitive radio algorithms allows to minimize interference and to optimize user's capacity in a given picocell cluster area.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131788445","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: 4
Cross layer design approach for performance evaluation of multimedia contents 多媒体内容性能评价的跨层设计方法
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156515
M. Almeida, Rui Inacio, S. Sargento
{"title":"Cross layer design approach for performance evaluation of multimedia contents","authors":"M. Almeida, Rui Inacio, S. Sargento","doi":"10.1109/IWCLD.2009.5156515","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156515","url":null,"abstract":"Service Performance Evaluation is usually associated with connectivity related services, such as the provisioning of an internet connection. Now operators are beginning to explore new business opportunities on the All-over-IP world and beyond. New solutions are being deployed focusing on the multimedia interactive contents. New network architectures will require extensions to provide a clear vision on the service delivery quality, and new approaches on cross-layer information will be envisioned. This paper provides an insight on the cross-layer overview of the current 3GPP networks, while featuring the analysis until the end-to-end performance and end-user perception. It employs a correlation between the most relevant parameters at each layer and underlines their contribution to the upper layers. It further provides an analytical qualitative analysis of the overall service performance by evaluating simulation results which are sustained by both network and service performance metrics.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115825836","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: 5
TCP-aware resource allocation in OFDMA based wireless networks 基于OFDMA无线网络中tcp感知的资源分配
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156527
Toktam Mahmoodi, V. Friderikos, O. Holland, H. Aghvami
{"title":"TCP-aware resource allocation in OFDMA based wireless networks","authors":"Toktam Mahmoodi, V. Friderikos, O. Holland, H. Aghvami","doi":"10.1109/IWCLD.2009.5156527","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156527","url":null,"abstract":"Various cross-layer optimizations have been recently proposed to improve the performance of TCP in wireless networks. In this paper, we propose a dynamic OFDMA based subcarrier/power allocation which aims to constrain the achievable rate on each flow proportionally to the TCP throughput of the corresponding flow. Numerical investigations reveal that the proposed approach significantly increases fairness among TCP flows operating over end-to-end paths of different characteristics.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115890220","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
A new cross-layer based Dynamic Resource Allocator for IEEE 802.16e networks 一种新的基于跨层的IEEE 802.16e网络动态资源分配器
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156532
Alberto Nascimento, Jonathan Rodriguez
{"title":"A new cross-layer based Dynamic Resource Allocator for IEEE 802.16e networks","authors":"Alberto Nascimento, Jonathan Rodriguez","doi":"10.1109/IWCLD.2009.5156532","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156532","url":null,"abstract":"A new Dynamic Resource Allocator (DRA) architecture, based on a cross-layer framework, by using the control and signal channels implemented in the IEEE802.16e standard, is proposed. Commonly and a new designed packet schedulers are used in the performance evaluation of the DRA, by means of System Level Simulations under a realistic network layout, conducted on a proprietary C++ platform, fully compatible with the IEEE802.16e standard. Results are presented for the full queue and 3GPP Near Real Time Video (NRTV) traffic models and for the ITU PedB, PedA and VehA channel models for mobile speeds of 3 and 30 km/h. A newly designed scheduler based on the normalized (to the average) Signal to Interference plus Noise Ratio (SINR) is considered and its performance compared against the opportunistic Max CI and fair Round Robin.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122467334","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: 0
Frequency-selective adaptive transmission from a cross-layer perspective 从跨层角度看频率选择自适应传输
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156508
S. Pfletschinger, M. Navarro
{"title":"Frequency-selective adaptive transmission from a cross-layer perspective","authors":"S. Pfletschinger, M. Navarro","doi":"10.1109/IWCLD.2009.5156508","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156508","url":null,"abstract":"In this paper, we consider frequency-selective adaptation from a link and a MAC layer perspective. In particular, we focus on the question of how to combine forward error correction with adaptive modulation and hybrid ARQ. The link adaptation scheme is then fitted into a packet-oriented multi-user OFDM system with a dynamic scheduler.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116561757","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: 0
Link residual-time estimation for VANET cross-layer design VANET跨层设计的链路剩余时间估计
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156521
N. Sofra, A. Gkelias, K. Leung
{"title":"Link residual-time estimation for VANET cross-layer design","authors":"N. Sofra, A. Gkelias, K. Leung","doi":"10.1109/IWCLD.2009.5156521","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156521","url":null,"abstract":"Traditional network design may underestimate the dependencies between different layers of the protocol stack and fail to exploit the direct coupling of physical-layer operations to the network topology. In the case of a highly dynamic network, as observed in vehicular communications, the network architecture needs to be able to optimally adapt to the changes brought on by nodes' mobility. In this paper we propose a cross-layer approach, where the received power metric, logged at the physical layer, can be used to produce estimates of the links' residual lifetime. Such information is crucial for the decision processes of higher layers, such as hand-off, scheduling and routing. The method comprises of utilizing a time series based on physical-layer measurements to estimate the current state of the link and the remaining time during which the link can be used for efficient communication. Shadowing, small scale fading and limited opportunities to sample the channel make the problem challenging. The proposed algorithms are tested against simulations which depict the mobile wireless channel realistically.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126975897","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: 24
Cross-layer functionality in ultra-wideband applications, The EUWB perspective 超宽带应用中的跨层功能，EUWB视角
2009 Second International Workshop on Cross Layer Design Pub Date : 2009-06-11 DOI: 10.1109/IWCLD.2009.5156535
C. Kocks, A. Vießmann, Shangbo Wang, E. Scheiber, Dong Xu, G. Bruck, P. Jung, S. Zeisberg
{"title":"Cross-layer functionality in ultra-wideband applications, The EUWB perspective","authors":"C. Kocks, A. Vießmann, Shangbo Wang, E. Scheiber, Dong Xu, G. Bruck, P. Jung, S. Zeisberg","doi":"10.1109/IWCLD.2009.5156535","DOIUrl":"https://doi.org/10.1109/IWCLD.2009.5156535","url":null,"abstract":"EUWB (Coexisting Short Range Radio by Advanced Ultra-Wideband Radio Technology, FP7-ICT-215669, www.euwb.eu) has been an industry-led initiative of twenty-one major industrial and excellent academic organizations from Europe and Israel targeting innovative improvement, adaptation, integration and application of short-range Ultra-Wideband Radio Technology (UWB-RT). EUWB will effectively leverage and significantly enhance the scientific knowledge base in the advanced UWB-RT and will provide sophisticated new applications enabled by UWB and highly demanded in several European key industrial sectors such as home entertainment consumer electronics, automotive, public transportation, and heterogeneous cellular networks. A major asset of the successful application of UWB technology will be an efficient exploitation of cross-layer functionalities. Within EUWB, two major fields of this emerging challenge have been identified, namely the cognitive radio related Detect-And-Avoid (DAA) technology and the location tracking (LT) technology. In this manuscript the authors will first illustrate the technical approach of EUWB, giving a brief overview of the project and then explain how DAA and LT have been considered in the EUWB application solutions.","PeriodicalId":357456,"journal":{"name":"2009 Second International Workshop on Cross Layer Design","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114979614","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: 0
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