Pub Date : 2011-11-30DOI: 10.1109/IWCLD.2011.6123072
M. Alam, O. Berder, D. Ménard, O. Sentieys
Medium access control MAC layer plays an important role for energy management in wireless sensor network (WSN). In this paper we present an adaptive wake-up-interval scheme for preamble sampling (MAC) protocols for variable traffic in WSN. The wake-up-interval is updated based on the traffic status register (whose contents depend on the presence of messages for a particular node). The proposed algorithm considers dominant effect of recent traffic with regards to the old traffic and also it relies on the occurrence of consecutive data packets. The results show that the sensor node adapts and converges its wake-up-interval to the best trade-off value for fixed and variable traffic patterns. Two optimization parameters (length of traffic status register and initial wake-up-interval value) are also tuned to achieve fast convergence speed for different traffic rates and variations.
{"title":"Traffic-aware adaptive wake-up-interval for preamble sampling MAC protocols of WSN","authors":"M. Alam, O. Berder, D. Ménard, O. Sentieys","doi":"10.1109/IWCLD.2011.6123072","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123072","url":null,"abstract":"Medium access control MAC layer plays an important role for energy management in wireless sensor network (WSN). In this paper we present an adaptive wake-up-interval scheme for preamble sampling (MAC) protocols for variable traffic in WSN. The wake-up-interval is updated based on the traffic status register (whose contents depend on the presence of messages for a particular node). The proposed algorithm considers dominant effect of recent traffic with regards to the old traffic and also it relies on the occurrence of consecutive data packets. The results show that the sensor node adapts and converges its wake-up-interval to the best trade-off value for fixed and variable traffic patterns. Two optimization parameters (length of traffic status register and initial wake-up-interval value) are also tuned to achieve fast convergence speed for different traffic rates and variations.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123323045","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 : 2011-11-30DOI: 10.1109/IWCLD.2011.6123079
Ayman Khalil, Rana Diab, M. Crussiére, J. Hélard
In this paper, we study the resource allocation problem in orthogonal frequency division multiple access (OFDMA) systems. An analytical approach based on an optimization problem formulation for the time-frequency spectrum allocation matter is proposed. The optimization problem takes into consideration heterogeneous constraints belonging to two different layers, leading to a cross-layer approach. The cross-layer concept approved in the optimization problem shows its ability to satisfy the heterogeneous users requirements, which ensures a high-level of quality-of-service (QoS) support. Simulation results demonstrate the efficiency of the proposed scheme in terms of rate satisfaction and resource use optimization.
{"title":"Time-frequency resource allocation optimization model for OFDMA systems","authors":"Ayman Khalil, Rana Diab, M. Crussiére, J. Hélard","doi":"10.1109/IWCLD.2011.6123079","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123079","url":null,"abstract":"In this paper, we study the resource allocation problem in orthogonal frequency division multiple access (OFDMA) systems. An analytical approach based on an optimization problem formulation for the time-frequency spectrum allocation matter is proposed. The optimization problem takes into consideration heterogeneous constraints belonging to two different layers, leading to a cross-layer approach. The cross-layer concept approved in the optimization problem shows its ability to satisfy the heterogeneous users requirements, which ensures a high-level of quality-of-service (QoS) support. Simulation results demonstrate the efficiency of the proposed scheme in terms of rate satisfaction and resource use optimization.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117258839","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 : 2011-11-30DOI: 10.1109/IWCLD.2011.6123074
George Adam, Christos Bouras, A. Gkamas, V. Kapoulas, Georgios Kioumourtzis, Nikos Tavoularis
Mobile ad hoc networks (MANETs) are becoming more essential to wireless communications due to growing popularity of mobile devices. However, MANETs do not seem to effectively support multimedia applications and especially video transmission. This paper presents a cross-layer mechanism for efficient video transmission over this type of networks. The proposed mechanism consists of a priority-scheduling algorithm, at the network layer, and the use of the IEEE 802.11e standard at the MAC layer. The priority-scheduling algorithm takes into account the frame type of the MPEG-4 video file in order to provide different priorities to the most important video packets. At the MAC layer, the IEEE 802.11e protocol assigns the highest priority to video applications to reduce delay and packets losses due to other competing traffic. This design is easily implemented in any ad hoc wireless network as an extension on the AODV MANET routing protocol. Simulation results conducted with the network simulator ns-2 show the advantages of the proposed design.
{"title":"Cross-layer mechanism for efficient video transmission over mobile ad hoc networks","authors":"George Adam, Christos Bouras, A. Gkamas, V. Kapoulas, Georgios Kioumourtzis, Nikos Tavoularis","doi":"10.1109/IWCLD.2011.6123074","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123074","url":null,"abstract":"Mobile ad hoc networks (MANETs) are becoming more essential to wireless communications due to growing popularity of mobile devices. However, MANETs do not seem to effectively support multimedia applications and especially video transmission. This paper presents a cross-layer mechanism for efficient video transmission over this type of networks. The proposed mechanism consists of a priority-scheduling algorithm, at the network layer, and the use of the IEEE 802.11e standard at the MAC layer. The priority-scheduling algorithm takes into account the frame type of the MPEG-4 video file in order to provide different priorities to the most important video packets. At the MAC layer, the IEEE 802.11e protocol assigns the highest priority to video applications to reduce delay and packets losses due to other competing traffic. This design is easily implemented in any ad hoc wireless network as an extension on the AODV MANET routing protocol. Simulation results conducted with the network simulator ns-2 show the advantages of the proposed design.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125138553","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 : 2011-11-30DOI: 10.1109/IWCLD.2011.6123071
Roua Youssef, M. Hélard, M. Crussiére, J. Hélard
In this paper, we propose a distributed turbo-like coding scheme for wireless broadcast networks with relays. We first consider a scenario where a base station communicates with a mobile station with the help of a relay. The relay decodes the information from the base station and it re-encodes it to generate some extra redundancy, which is transmitted to the mobile station. Orthogonal frequency division multiplexing (OFDM) transmission is considered where the available bandwidth is divided into a total number of subcarriers allocated between the base station and the relays. The proposed scheme achieves a significant gain with respect to the non-cooperation case. Furthermore, we extend the proposed system to a two-relay scenario where two relays assist the transmission between the base station and the mobile station. Single frequency network (SFN)-like transmission is used at the relays, i.e., the relays are allocated the same subcarriers, in order to efficiently exploit the radio spectrum.
{"title":"Distributed coding for OFDM-based transmission in cooperative broadcast networks","authors":"Roua Youssef, M. Hélard, M. Crussiére, J. Hélard","doi":"10.1109/IWCLD.2011.6123071","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123071","url":null,"abstract":"In this paper, we propose a distributed turbo-like coding scheme for wireless broadcast networks with relays. We first consider a scenario where a base station communicates with a mobile station with the help of a relay. The relay decodes the information from the base station and it re-encodes it to generate some extra redundancy, which is transmitted to the mobile station. Orthogonal frequency division multiplexing (OFDM) transmission is considered where the available bandwidth is divided into a total number of subcarriers allocated between the base station and the relays. The proposed scheme achieves a significant gain with respect to the non-cooperation case. Furthermore, we extend the proposed system to a two-relay scenario where two relays assist the transmission between the base station and the mobile station. Single frequency network (SFN)-like transmission is used at the relays, i.e., the relays are allocated the same subcarriers, in order to efficiently exploit the radio spectrum.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117295111","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 : 2011-11-01DOI: 10.1109/IWCLD.2011.6123085
P. Achaichia, M. Le Bot, P. Siohan
A well-known allocation technique, called bit-loading, results in the creation of tone maps which define, for each subcarrier on a particular transmission path, the appropriate constellation that has to be applied based on a link quality criterion. If this technique allows to efficiently optimize point-to-point transmissions in the network, it poses several challenges when transmitting the same information to multiple stations, i.e. Multicast/Broadcast data streams. In this paper, an efficient algorithm that smartly merges similar tone maps is presented, in order to better handle Multicast/Broadcast data streams. The demonstration of its efficiency will be made placing ourselves in the context of power line communications networks following the HPAV specification. However, our merging principle itself remains applicable to any system associating multicarrier modulations and bit-loading algorithms, as it could be in an indoor wireless environment.
{"title":"An efficient technique for merging transmissions in a multicarrier context","authors":"P. Achaichia, M. Le Bot, P. Siohan","doi":"10.1109/IWCLD.2011.6123085","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123085","url":null,"abstract":"A well-known allocation technique, called bit-loading, results in the creation of tone maps which define, for each subcarrier on a particular transmission path, the appropriate constellation that has to be applied based on a link quality criterion. If this technique allows to efficiently optimize point-to-point transmissions in the network, it poses several challenges when transmitting the same information to multiple stations, i.e. Multicast/Broadcast data streams. In this paper, an efficient algorithm that smartly merges similar tone maps is presented, in order to better handle Multicast/Broadcast data streams. The demonstration of its efficiency will be made placing ourselves in the context of power line communications networks following the HPAV specification. However, our merging principle itself remains applicable to any system associating multicarrier modulations and bit-loading algorithms, as it could be in an indoor wireless environment.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114245903","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 : 2011-11-01DOI: 10.1109/IWCLD.2011.6123069
M. Wódczak
Both cooperative transmission and autonomic networking have emerged recently as very promising technologies ready to become the key components of network of the future. Cooperative transmission capitalises on the exploitation of radio channel diversity provided by additional relay nodes forming virtual antenna arrays. Especially in dense set-ups, there appears an urgent need for the exploitation of the network layer routines for the purposes of organising many potentially concurrent cooperative and non-cooperative transmissions. Finally, complex network configurations require the incorporation of self-management so the system can behave autonomically as if it was imitating the processes driving real living organisms. All these aspects induce certain cross-layer elements into the overall system design to be discussed in this paper.
{"title":"Aspects of cross-layer design in autonomic cooperative networking","authors":"M. Wódczak","doi":"10.1109/IWCLD.2011.6123069","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123069","url":null,"abstract":"Both cooperative transmission and autonomic networking have emerged recently as very promising technologies ready to become the key components of network of the future. Cooperative transmission capitalises on the exploitation of radio channel diversity provided by additional relay nodes forming virtual antenna arrays. Especially in dense set-ups, there appears an urgent need for the exploitation of the network layer routines for the purposes of organising many potentially concurrent cooperative and non-cooperative transmissions. Finally, complex network configurations require the incorporation of self-management so the system can behave autonomically as if it was imitating the processes driving real living organisms. All these aspects induce certain cross-layer elements into the overall system design to be discussed in this paper.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131384535","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 : 2011-11-01DOI: 10.1109/IWCLD.2011.6123083
Jean-Philippe Javaudin, M. Bellec
The OMEGA project has worked on defining a global standard for ultra broadband home area networks. The new standard consists of a unified home network, which hides the heterogeneity of wired and wireless connections from the end user. Applications can benefit from the capabilities of all the combined technologies constituting the home network. Moreover, the OMEGA home network reaches transmission speeds of one gigabit per second (1 Gbps) not only over robust Ethernet links, but also over power-line communications and wireless connections. With OMEGA's gigabit home network, users can get easy access to high bandwidth information and communication services.
{"title":"OMEGA project: On Convergent Digital Home Networks","authors":"Jean-Philippe Javaudin, M. Bellec","doi":"10.1109/IWCLD.2011.6123083","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123083","url":null,"abstract":"The OMEGA project has worked on defining a global standard for ultra broadband home area networks. The new standard consists of a unified home network, which hides the heterogeneity of wired and wireless connections from the end user. Applications can benefit from the capabilities of all the combined technologies constituting the home network. Moreover, the OMEGA home network reaches transmission speeds of one gigabit per second (1 Gbps) not only over robust Ethernet links, but also over power-line communications and wireless connections. With OMEGA's gigabit home network, users can get easy access to high bandwidth information and communication services.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115571539","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 : 2011-11-01DOI: 10.1109/IWCLD.2011.6123086
I. Siaud, Anne-Marie Ulmer-Moll
This paper presents an original OFDMA-like technique intended to improve diversity propagation in the resource allocation procedure compliant with OFDMA and OFDM-TDMA schemes. The proposed technique combines sub-carrier interleaving process to sub-canalization in order to optimize interleaving spreading and introduce interleaving diversity in the OFDM(A) sub-channel allocation. The algorithm denoted Interleaving based Resource Allocation (IRA), efficiently improves link level performance in the WPAN context copying with high propagation correlation levels. IRA is applied here to 60 GHz Multi-Gigabit Wireless Systems (MGWS) and plan to be evaluated on IEEE802.11 ad draft standard.
本文提出了一种新颖的类OFDMA技术，旨在改善OFDMA和OFDM-TDMA协议下资源分配过程中的分集传播。该技术将子载波交错处理与子信道化相结合，以优化交错传播，并在OFDM(A)子信道分配中引入交错分集。基于交错的资源分配(Interleaving based Resource Allocation, IRA)算法有效地提高了WPAN上下文复制中高传播相关级别的链路级性能。IRA应用于60 GHz多千兆无线系统(MGWS)，并计划在IEEE802.11和草案标准上进行评估。
{"title":"Interleaving based resource allocation algorithms for Multi Gigabit Wireless OFDM systems","authors":"I. Siaud, Anne-Marie Ulmer-Moll","doi":"10.1109/IWCLD.2011.6123086","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123086","url":null,"abstract":"This paper presents an original OFDMA-like technique intended to improve diversity propagation in the resource allocation procedure compliant with OFDMA and OFDM-TDMA schemes. The proposed technique combines sub-carrier interleaving process to sub-canalization in order to optimize interleaving spreading and introduce interleaving diversity in the OFDM(A) sub-channel allocation. The algorithm denoted Interleaving based Resource Allocation (IRA), efficiently improves link level performance in the WPAN context copying with high propagation correlation levels. IRA is applied here to 60 GHz Multi-Gigabit Wireless Systems (MGWS) and plan to be evaluated on IEEE802.11 ad draft standard.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125048623","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 : 2011-11-01DOI: 10.1109/IWCLD.2011.6123077
S. Wendt, A. Samhat, Fabio Di Renzo
We investigate in this paper the resource allocation in wireless multi-hop network and we propose a cross layer based scheduling that takes into account the efficiency of advanced (smart) antenna techniques to increase network capacity by maximizing the number of concurrent transmissions without increasing interference. The proposed algorithm is applied to a WiMAX multi-hop network simulated using OPNET. The simulation results show the capability to dynamically adapt routing decision and scheduling according to the physical layer feedback while satisfying QoS criteria, in addition to a fair distribution of network traffic over whole links among nodes.
{"title":"Cross-layer resource allocation in WiMAX multi-hop networks using smart antennas","authors":"S. Wendt, A. Samhat, Fabio Di Renzo","doi":"10.1109/IWCLD.2011.6123077","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123077","url":null,"abstract":"We investigate in this paper the resource allocation in wireless multi-hop network and we propose a cross layer based scheduling that takes into account the efficiency of advanced (smart) antenna techniques to increase network capacity by maximizing the number of concurrent transmissions without increasing interference. The proposed algorithm is applied to a WiMAX multi-hop network simulated using OPNET. The simulation results show the capability to dynamically adapt routing decision and scheduling according to the physical layer feedback while satisfying QoS criteria, in addition to a fair distribution of network traffic over whole links among nodes.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129361596","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 : 2011-11-01DOI: 10.1109/IWCLD.2011.6123070
Jong‐Hyouk Lee, T. Ernst, J. Bonnin
Recent technical breakthroughs in communications have facilitated a cross-layered communication architecture for Intelligent Transportation Systems (ITS) aiming at ameliorating road safety and traffic efficiency. In this paper, we introduce an ITS station reference architecture recently developed by the ETSI TC ITS and ISO TC204 WG16. Then, we develop service interfaces for securing IPv6 ITS communication: 1) generic commands for activating/deactivating the security services at the IPv6 layer; and 2) generic commands for requesting atomic security operations. We also provide an example showing how the proposed generic commands are used in the pseudonym change.
{"title":"Cross-layered architecture for securing IPv6 ITS communication: Example of pseudonym change","authors":"Jong‐Hyouk Lee, T. Ernst, J. Bonnin","doi":"10.1109/IWCLD.2011.6123070","DOIUrl":"https://doi.org/10.1109/IWCLD.2011.6123070","url":null,"abstract":"Recent technical breakthroughs in communications have facilitated a cross-layered communication architecture for Intelligent Transportation Systems (ITS) aiming at ameliorating road safety and traffic efficiency. In this paper, we introduce an ITS station reference architecture recently developed by the ETSI TC ITS and ISO TC204 WG16. Then, we develop service interfaces for securing IPv6 ITS communication: 1) generic commands for activating/deactivating the security services at the IPv6 layer; and 2) generic commands for requesting atomic security operations. We also provide an example showing how the proposed generic commands are used in the pseudonym change.","PeriodicalId":149596,"journal":{"name":"2011 Third International Workshop on Cross Layer Design","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126347591","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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