Pub Date : 2013-10-31DOI: 10.1109/ICCW.2013.6649315
Zhiming Shi, Hui Liu
In this paper, we explore the impact of network parameters on perceptual quality of network video. First we present an experiment to measure the network parameters of video in the presence of different network bandwidth. Then we propose a no-reference video quality assessment method based on Media delivery index (MDI). M5' model tree, a data mining method which is good for segmental linearization of single-output multi-output system, was introduced to model the assessment method and its parameters. For all experimental data examined, our method yields high Pearson Correlation (higher than 0.95) with measured mean opinion score (MOS).
{"title":"Network video quality assessment based on MDI","authors":"Zhiming Shi, Hui Liu","doi":"10.1109/ICCW.2013.6649315","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649315","url":null,"abstract":"In this paper, we explore the impact of network parameters on perceptual quality of network video. First we present an experiment to measure the network parameters of video in the presence of different network bandwidth. Then we propose a no-reference video quality assessment method based on Media delivery index (MDI). M5' model tree, a data mining method which is good for segmental linearization of single-output multi-output system, was introduced to model the assessment method and its parameters. For all experimental data examined, our method yields high Pearson Correlation (higher than 0.95) with measured mean opinion score (MOS).","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125084008","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649262
Nariman Rahimian, C. Georghiades, M. Z. Shakir, K. Qaraqe
Cognitive radio systems are a smart approach to solve the problem of under-utilized spectrum of the licensed primary users (PUs). In order to gain a better quantitative insight of such systems, having a precise and comprehensive mathematical model of system throughput is vital. In this paper, we consider a set of PUs that are distributed in space based on Poisson point process (PPP) and demand for available spectrum. We determine the effect of these demands on the throughput of a single sensing secondary user (SU) under various channel requesting distributions and fading environment. In this context, we analytically derived the SU throughput in the presence of mutual interference due to imperfect detection of the SU in an OFDMA-based cognitive radio system. Moreover, the asymptotic behavior of the primary network is analytically studied under the asymptotic conditions such as higher traffic load and increasing transmit power. The results are critically investigated, formulated as theorems and compared with simulations. It is observed that analytical and simulation results are in perfect agreement. Furthermore, it is shown that with the increase in primary network transmit power, the average throughput of the SU increases and converges to a limit point. It is also proved that with the increase in primary network traffic load, the SU throughput decreases and converges to a limit point. Numerical results verify the validity of our model in capturing the effects of system specifications such as the channel requesting distributions and the traffic load on the SU throughput.
{"title":"Statistical analysis of secondary users throughput for OFDMA cognitive radio networks","authors":"Nariman Rahimian, C. Georghiades, M. Z. Shakir, K. Qaraqe","doi":"10.1109/ICCW.2013.6649262","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649262","url":null,"abstract":"Cognitive radio systems are a smart approach to solve the problem of under-utilized spectrum of the licensed primary users (PUs). In order to gain a better quantitative insight of such systems, having a precise and comprehensive mathematical model of system throughput is vital. In this paper, we consider a set of PUs that are distributed in space based on Poisson point process (PPP) and demand for available spectrum. We determine the effect of these demands on the throughput of a single sensing secondary user (SU) under various channel requesting distributions and fading environment. In this context, we analytically derived the SU throughput in the presence of mutual interference due to imperfect detection of the SU in an OFDMA-based cognitive radio system. Moreover, the asymptotic behavior of the primary network is analytically studied under the asymptotic conditions such as higher traffic load and increasing transmit power. The results are critically investigated, formulated as theorems and compared with simulations. It is observed that analytical and simulation results are in perfect agreement. Furthermore, it is shown that with the increase in primary network transmit power, the average throughput of the SU increases and converges to a limit point. It is also proved that with the increase in primary network traffic load, the SU throughput decreases and converges to a limit point. Numerical results verify the validity of our model in capturing the effects of system specifications such as the channel requesting distributions and the traffic load on the SU throughput.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"663 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114088660","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649384
Vasileios Miliotis, L. Alonso, C. Verikoukis
In this paper, a novel cooperative scheme based on Physical layer Network Coding (PNC) for short range communication (SRC) networks is proposed. We present a scenario of overlapping networks with multicast traffic and propose a technique of indirect inter-group cooperation, based on the features of PNC. Our main goal is to exploit the characteristics of PNC to provide a solution for cooperative SRC networks, that presents high levels of energy efficiency without degrading Quality of Service (QoS). Illustrating the performance of our proposed cooperative scenario, it is proved that it is highly energy efficient and it also presents higher throughput compared to conventional cooperative schemes. The throughput, the delay and the energy efficiency of the neighbouring networks are analytically presented and the mathematical analysis is validated through extensive simulations.
{"title":"Cooperative multicast exploiting Physical layer Network Coding: A performance analysis","authors":"Vasileios Miliotis, L. Alonso, C. Verikoukis","doi":"10.1109/ICCW.2013.6649384","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649384","url":null,"abstract":"In this paper, a novel cooperative scheme based on Physical layer Network Coding (PNC) for short range communication (SRC) networks is proposed. We present a scenario of overlapping networks with multicast traffic and propose a technique of indirect inter-group cooperation, based on the features of PNC. Our main goal is to exploit the characteristics of PNC to provide a solution for cooperative SRC networks, that presents high levels of energy efficiency without degrading Quality of Service (QoS). Illustrating the performance of our proposed cooperative scenario, it is proved that it is highly energy efficient and it also presents higher throughput compared to conventional cooperative schemes. The throughput, the delay and the energy efficiency of the neighbouring networks are analytically presented and the mathematical analysis is validated through extensive simulations.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122320713","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649423
L. Gao, Hui Tian, Pengming Tian, Jun Zhang, M. Wang
In co-channel deployment of macrocell and indoor femtocells, almost blank subframe (ABS) is considered as an effective enhanced inter-cell interference coordination strategy for mitigating downlink cross-tier interference. In this paper, a novel distributed dynamic ABS ratio setting scheme is proposed for dense residential femtocell deployment with closed subscriber group configuration. Both the overall cell throughput and fairness index are employed to judge the status of the environment around each femtocell, which decides whether and how to change ABS ratios. Simulation results show that the proposed scheme outperforms other static settings, and provides remarkable improvement on cell edge performance with little overall throughput cost.
{"title":"A distributed dynamic ABS ratio setting scheme for macro-femto heterogeneous networks","authors":"L. Gao, Hui Tian, Pengming Tian, Jun Zhang, M. Wang","doi":"10.1109/ICCW.2013.6649423","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649423","url":null,"abstract":"In co-channel deployment of macrocell and indoor femtocells, almost blank subframe (ABS) is considered as an effective enhanced inter-cell interference coordination strategy for mitigating downlink cross-tier interference. In this paper, a novel distributed dynamic ABS ratio setting scheme is proposed for dense residential femtocell deployment with closed subscriber group configuration. Both the overall cell throughput and fairness index are employed to judge the status of the environment around each femtocell, which decides whether and how to change ABS ratios. Simulation results show that the proposed scheme outperforms other static settings, and provides remarkable improvement on cell edge performance with little overall throughput cost.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130457854","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649340
E. Leo, L. Donvito, L. Galluccio, A. Lombardo, G. Morabito
In this paper we propose the Hydrodynamic Controlled microfluidic Network (HCN) paradigm which is based on a purely hydrodynamic microfluidic switching function. The HCN paradigm can be applied to realize programmable microfluidic devices, such as for example Labs-on-a-Chip (LoCs), that by exploiting hydrodynamic effects only, route chemical (or biological) samples in a microfluidic network, in a controlled way. Such microfluidic devices are expected to be highly flexible and inexpensive, and thus to become extremely competitive with alternative solutions for chemical/biological analysis and synthesis or cheap sensing. The paper provides the design rules of the microfluidic circuit implementing the switching function and illustrates through simulations the feasibility of the proposed idea.
{"title":"Microfluidic networks: design and test of a pure hydrodynamic switching function","authors":"E. Leo, L. Donvito, L. Galluccio, A. Lombardo, G. Morabito","doi":"10.1109/ICCW.2013.6649340","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649340","url":null,"abstract":"In this paper we propose the Hydrodynamic Controlled microfluidic Network (HCN) paradigm which is based on a purely hydrodynamic microfluidic switching function. The HCN paradigm can be applied to realize programmable microfluidic devices, such as for example Labs-on-a-Chip (LoCs), that by exploiting hydrodynamic effects only, route chemical (or biological) samples in a microfluidic network, in a controlled way. Such microfluidic devices are expected to be highly flexible and inexpensive, and thus to become extremely competitive with alternative solutions for chemical/biological analysis and synthesis or cheap sensing. The paper provides the design rules of the microfluidic circuit implementing the switching function and illustrates through simulations the feasibility of the proposed idea.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121785021","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649370
Minglei You, Ting Jiang
In this paper, a novel method of target identification in foliage environment is presented. This method takes the received signal waveforms to identify the targets between the communication transceivers, which are measured by Ultra WideBand (UWB) Impulse Radio (IR) equipment under foliage environment. In this way, most existing UWB-IR transceivers can be exploited as detecting radar sensors, which leads to a potential low-cost way to identify targets under foliage environment. The selected bispectra algorithm is applied to extract the feature vector, and Extreme Learning Machine is used as the target classifier. Experiments with real-world data samples indicate that this method has an excellent classification performance in foliage environment.
{"title":"Target identification in foliage environment using selected bispectra and Extreme Learning Machine","authors":"Minglei You, Ting Jiang","doi":"10.1109/ICCW.2013.6649370","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649370","url":null,"abstract":"In this paper, a novel method of target identification in foliage environment is presented. This method takes the received signal waveforms to identify the targets between the communication transceivers, which are measured by Ultra WideBand (UWB) Impulse Radio (IR) equipment under foliage environment. In this way, most existing UWB-IR transceivers can be exploited as detecting radar sensors, which leads to a potential low-cost way to identify targets under foliage environment. The selected bispectra algorithm is applied to extract the feature vector, and Extreme Learning Machine is used as the target classifier. Experiments with real-world data samples indicate that this method has an excellent classification performance in foliage environment.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114421296","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649307
Moustafa M. Nasralla, O. Ognenoski, M. Martini
The recent Long-Term Evolution (LTE) standard, thanks to the provision of high data rates, will enable future immersive and interactive multimedia applications over wireless. In this paper, we study the performance of 2D and 3D video transmission over LTE networks. The LTE standard bandwidth ranges are considered in order to explore the impact of the LTE bandwidth scalability on the transmission of 2D and 3D video traffic to the end users. This dependency is investigated through the packet loss ratio (PLR) and average throughput as user-oriented metrics, and the cell spectral efficiency as a system-oriented metric. Furthermore, a PLR-based Admission Control (AC) strategy is introduced in the system for which the achieved trade-off between the system resource utilization and the quality level provided to the different users is investigated. The simulation results provide guidelines for combining bandwidth scalability and admission control strategies in LTE networks in order to achieve high system resource utilization and video quality for the LTE users.
{"title":"Bandwidth scalability and efficient 2D and 3D video transmission over LTE networks","authors":"Moustafa M. Nasralla, O. Ognenoski, M. Martini","doi":"10.1109/ICCW.2013.6649307","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649307","url":null,"abstract":"The recent Long-Term Evolution (LTE) standard, thanks to the provision of high data rates, will enable future immersive and interactive multimedia applications over wireless. In this paper, we study the performance of 2D and 3D video transmission over LTE networks. The LTE standard bandwidth ranges are considered in order to explore the impact of the LTE bandwidth scalability on the transmission of 2D and 3D video traffic to the end users. This dependency is investigated through the packet loss ratio (PLR) and average throughput as user-oriented metrics, and the cell spectral efficiency as a system-oriented metric. Furthermore, a PLR-based Admission Control (AC) strategy is introduced in the system for which the achieved trade-off between the system resource utilization and the quality level provided to the different users is investigated. The simulation results provide guidelines for combining bandwidth scalability and admission control strategies in LTE networks in order to achieve high system resource utilization and video quality for the LTE users.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"2673 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125592528","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649429
K. Mizutani, Z. Lan, R. Funada, H. Harada
Demand for wireless communication is increasing significantly, while the frequency availability for wireless communication is quite limited. Currently, various countries are prompting the use of TV white spaces. IEEE 802.11 WG (Working group) has started a TG (Task Group), namely IEEE 802.11af to develop the international standard for WLAN in TV white spaces. In order to increase maximum throughput, a channel aggregation mechanism is introduced in the draft standard of TGaf. In Japan, ISDB-T based area-one-segment broadcasting system (Area-one-seg) which is a digital TV broadcast service in the limited area have been permitted to do actual services in TV white spaces from April 2012. The operation of the IEEE 802.11af system shall not jeopardize the Area-one-seg system due to the common operating frequency band. If the Area-one-seg partially overlaps with the IEEE 802.11af in some frequency, the IEEE 802.11af cannot use the channel aggregation mechanism due to lack of channels. As a result, the throughput of the IEEE 802.11af deteriorates. In this paper, the physical layer of IEEE 802.11af D2.0 is introduced briefly, and a partial subcarrier system for the IEEE 802.11af is proposed to effective use of TV white spaces and increase throughput. The IEEE 802.11af systems effectively coexist with the Area-one-seg by using null subcarriers. Computer simulation shows up to 60 % throughput gain is achieved with the proposed mechanism.
{"title":"IEEE802.11af with partial subcarrier system for effective use of TV white spaces","authors":"K. Mizutani, Z. Lan, R. Funada, H. Harada","doi":"10.1109/ICCW.2013.6649429","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649429","url":null,"abstract":"Demand for wireless communication is increasing significantly, while the frequency availability for wireless communication is quite limited. Currently, various countries are prompting the use of TV white spaces. IEEE 802.11 WG (Working group) has started a TG (Task Group), namely IEEE 802.11af to develop the international standard for WLAN in TV white spaces. In order to increase maximum throughput, a channel aggregation mechanism is introduced in the draft standard of TGaf. In Japan, ISDB-T based area-one-segment broadcasting system (Area-one-seg) which is a digital TV broadcast service in the limited area have been permitted to do actual services in TV white spaces from April 2012. The operation of the IEEE 802.11af system shall not jeopardize the Area-one-seg system due to the common operating frequency band. If the Area-one-seg partially overlaps with the IEEE 802.11af in some frequency, the IEEE 802.11af cannot use the channel aggregation mechanism due to lack of channels. As a result, the throughput of the IEEE 802.11af deteriorates. In this paper, the physical layer of IEEE 802.11af D2.0 is introduced briefly, and a partial subcarrier system for the IEEE 802.11af is proposed to effective use of TV white spaces and increase throughput. The IEEE 802.11af systems effectively coexist with the Area-one-seg by using null subcarriers. Computer simulation shows up to 60 % throughput gain is achieved with the proposed mechanism.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114754510","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 : 2013-10-31DOI: 10.1109/ICCW.2013.6649420
Bo Yu, Xiang Cheng, Liuqing Yang
In this paper, we investigate the energy savings in small-cell networks in the enhanced Local Area architecture at two stages. At the cell planning stage, we derive the optimal base station (BS) density in terms of the minimum total BS power consumption under certain coverage requirement. Results show that the optimal BS density depends on both the coverage requirement and the BS power consumption model. At the dynamic cell operation stage, we evaluate the feasibility of dynamic BS switching off scheme quantitatively by system level simulations following assumptions and models in 3GPP. Results show that the energy savings are achieved at the cost of data rate loss, and the overall energy efficiency improvement is marginal.
{"title":"Energy saving analysis and evaluation in the enhanced Local Area architecture","authors":"Bo Yu, Xiang Cheng, Liuqing Yang","doi":"10.1109/ICCW.2013.6649420","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649420","url":null,"abstract":"In this paper, we investigate the energy savings in small-cell networks in the enhanced Local Area architecture at two stages. At the cell planning stage, we derive the optimal base station (BS) density in terms of the minimum total BS power consumption under certain coverage requirement. Results show that the optimal BS density depends on both the coverage requirement and the BS power consumption model. At the dynamic cell operation stage, we evaluate the feasibility of dynamic BS switching off scheme quantitatively by system level simulations following assumptions and models in 3GPP. Results show that the energy savings are achieved at the cost of data rate loss, and the overall energy efficiency improvement is marginal.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128181301","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 : 2013-06-09DOI: 10.1109/ICCW.2013.6649400
E. Logota, Carlos Campos, S. Sargento, A. Neto
Dynamic aggregate bandwidth over-reservation is a scalable approach for Quality of Service (QoS) control mechanisms, since surplus of reservation allows for admitting several flows without signaling the network. Our recent work, the Advanced Class-based resource Over-Reservation (ACOR), shows interesting results by significantly reducing QoS control signaling overhead with increased resource utilization without incurring QoS violation when compared with related solutions. However, ACOR is too sensitive to the number of paths that share bottleneck links. It also resorts to per-flow signaling when links are congested. In view of this, we propose the Extended-ACOR (E-ACOR), which extends ACOR architecture with a new approach, aiming at reducing the performance dependency on paths' density on bottleneck interfaces. Moreover, it is able to efficiently track congestion information throughout a network to prevent unnecessary signaling during network congestion time. Thus, E-ACOR is expected to scale large networks with reduced signaling. Analytical and simulation results demonstrate the efficiency and cost-effectiveness of E-ACOR over ACOR; by significantly reducing signaling frequency especially during critical periods of congestion.
{"title":"Scalable resource and admission management in class-based networks","authors":"E. Logota, Carlos Campos, S. Sargento, A. Neto","doi":"10.1109/ICCW.2013.6649400","DOIUrl":"https://doi.org/10.1109/ICCW.2013.6649400","url":null,"abstract":"Dynamic aggregate bandwidth over-reservation is a scalable approach for Quality of Service (QoS) control mechanisms, since surplus of reservation allows for admitting several flows without signaling the network. Our recent work, the Advanced Class-based resource Over-Reservation (ACOR), shows interesting results by significantly reducing QoS control signaling overhead with increased resource utilization without incurring QoS violation when compared with related solutions. However, ACOR is too sensitive to the number of paths that share bottleneck links. It also resorts to per-flow signaling when links are congested. In view of this, we propose the Extended-ACOR (E-ACOR), which extends ACOR architecture with a new approach, aiming at reducing the performance dependency on paths' density on bottleneck interfaces. Moreover, it is able to efficiently track congestion information throughout a network to prevent unnecessary signaling during network congestion time. Thus, E-ACOR is expected to scale large networks with reduced signaling. Analytical and simulation results demonstrate the efficiency and cost-effectiveness of E-ACOR over ACOR; by significantly reducing signaling frequency especially during critical periods of congestion.","PeriodicalId":252497,"journal":{"name":"2013 IEEE International Conference on Communications Workshops (ICC)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123098952","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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