Pub Date : 2017-01-10DOI: 10.4108/eai.9-1-2017.152098
Navikkumar Modi, P. Mary, C. Moy
In this work, the opportunistic spectrum access (OSA) problem is addressed with stationary and nonstationary Markov multi-armed bandit (MAB) frameworks. We propose a novel index based algorithm named QoS-UCB that balances exploration in terms of occupancy and quality, e.g. signal to noise ratio (SNR) for transmission, for stationary environments. Furthermore, we propose another learning policy, named discounted QoS-UCB (DQoS-UCB), for the non-stationary case. Our contribution in terms of numerical analysis is twofold: i) In stationary OSA scenario, we numerically compare our QoS-UCB policy with an existing UCB1 and also show that QoS-UCB outperforms UCB1 in terms of regret and ii) in non-stationary OSA scenario, numerical results state that proposed DQoS-UCB policy outperforms other simple UCBs and also QoS-UCB policy. To the best of our knowledge, this is the first learning algorithm which adapts to nonstationary Markov MAB framework and also quantifies channel quality information. Received on XXXX; accepted on XXXX; published on XXXX
{"title":"Efficient Learning in Stationary and Non-stationary OSA Scenario with QoS Guaranty","authors":"Navikkumar Modi, P. Mary, C. Moy","doi":"10.4108/eai.9-1-2017.152098","DOIUrl":"https://doi.org/10.4108/eai.9-1-2017.152098","url":null,"abstract":"In this work, the opportunistic spectrum access (OSA) problem is addressed with stationary and nonstationary Markov multi-armed bandit (MAB) frameworks. We propose a novel index based algorithm named QoS-UCB that balances exploration in terms of occupancy and quality, e.g. signal to noise ratio (SNR) for transmission, for stationary environments. Furthermore, we propose another learning policy, named discounted QoS-UCB (DQoS-UCB), for the non-stationary case. Our contribution in terms of numerical analysis is twofold: i) In stationary OSA scenario, we numerically compare our QoS-UCB policy with an existing UCB1 and also show that QoS-UCB outperforms UCB1 in terms of regret and ii) in non-stationary OSA scenario, numerical results state that proposed DQoS-UCB policy outperforms other simple UCBs and also QoS-UCB policy. To the best of our knowledge, this is the first learning algorithm which adapts to nonstationary Markov MAB framework and also quantifies channel quality information. Received on XXXX; accepted on XXXX; published on XXXX","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121404196","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 : 2017-01-10DOI: 10.4108/eai.9-1-2017.152096
Mostafa Darabi, B. Maham
{"title":"A Novel Buffer-Aided Medium Access Control for Multichannel Cognitive Radio Networks","authors":"Mostafa Darabi, B. Maham","doi":"10.4108/eai.9-1-2017.152096","DOIUrl":"https://doi.org/10.4108/eai.9-1-2017.152096","url":null,"abstract":"","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133558916","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 : 2017-01-10DOI: 10.4108/eai.9-1-2017.152095
D. Rawat, Min Song, C. Xin
{"title":"Advances on Software Defined Wireless Networking","authors":"D. Rawat, Min Song, C. Xin","doi":"10.4108/eai.9-1-2017.152095","DOIUrl":"https://doi.org/10.4108/eai.9-1-2017.152095","url":null,"abstract":"","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116221666","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 : 2017-01-10DOI: 10.4108/eai.9-1-2017.152097
Cristian Roman, Peter Ball, Shumao Ou
Reliable wireless communications between vehicles (V2V) and between vehicles and infrastructure (V2I) will play a key role in future transport networks. Where there is overlapping coverage of multiple Radio Access Technologies, with no cooperation between them, a vehicle can use the di ff erent technologies simultaneously. This paper proposes an uplink Multi Interface Scheduling System (MISS) located at an intermediate shim layer on the user side, to achieve e ffi cient bandwidth aggregation, or lower end-to-end packet delay. MISS aims to find all the available networks that can meet multiple criteria based on user preference and required performance. Simulation results show that safety critical tra ffi c can be prioritized where the resources are insu ffi cient for all the services. Video delivery quality is also improved by prioritizing the most important frames. This algorithm is ideally suited to vehicular networks, where delivery of safety tra ffi c and/or video is an essential requirement.
{"title":"Multiple Interface Scheduling System for HeterogeneousWireless Vehicular Networks: Description and Evaluation","authors":"Cristian Roman, Peter Ball, Shumao Ou","doi":"10.4108/eai.9-1-2017.152097","DOIUrl":"https://doi.org/10.4108/eai.9-1-2017.152097","url":null,"abstract":"Reliable wireless communications between vehicles (V2V) and between vehicles and infrastructure (V2I) will play a key role in future transport networks. Where there is overlapping coverage of multiple Radio Access Technologies, with no cooperation between them, a vehicle can use the di ff erent technologies simultaneously. This paper proposes an uplink Multi Interface Scheduling System (MISS) located at an intermediate shim layer on the user side, to achieve e ffi cient bandwidth aggregation, or lower end-to-end packet delay. MISS aims to find all the available networks that can meet multiple criteria based on user preference and required performance. Simulation results show that safety critical tra ffi c can be prioritized where the resources are insu ffi cient for all the services. Video delivery quality is also improved by prioritizing the most important frames. This algorithm is ideally suited to vehicular networks, where delivery of safety tra ffi c and/or video is an essential requirement.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115673153","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 : 2017-01-10DOI: 10.4108/eai.9-1-2017.152099
Elif Bozkaya, B. Canberk
This paper investigates the energy efficiency of Road Side Units (RSUs) by proposing a novel flow and energy management model in Software-Defined Networking (SDN)-based vehicular networks. In the considered scenario, high vehicular mobility and limited coverage area of RSUs cause a degradation in Quality of Experience (QoE) of vehicles and this significantly affects the quality of communication by decreasing the percentage of flow satisfied. In addition, the growth in energy consumption of RSUs leads to inefficient network management. Being inspired from SDN, a centralized controller can schedule RSUs by providing a fair share of network resources and reduce the total energy consumption of RSUs by switching on/off. More specifically, in this paper, the controller classifies to vehicles based on QoE and defines unsatisfactory vehicles. Then the controller estimates the right amount of power level of these vehicles to connect a new assigned RSU. In this manner, RSUs can be scheduled by switching on/off so that the growth in energy consumption of RSUs can be managed. The evaluations show that the proposed model provides a better flow satisfied and throughput by guaranteeing energy efficiency in SDN-based vehicular networks.
{"title":"Software-Defined Management Model for Energy-Aware Vehicular Networks","authors":"Elif Bozkaya, B. Canberk","doi":"10.4108/eai.9-1-2017.152099","DOIUrl":"https://doi.org/10.4108/eai.9-1-2017.152099","url":null,"abstract":"This paper investigates the energy efficiency of Road Side Units (RSUs) by proposing a novel flow and energy management model in Software-Defined Networking (SDN)-based vehicular networks. In the considered scenario, high vehicular mobility and limited coverage area of RSUs cause a degradation in Quality of Experience (QoE) of vehicles and this significantly affects the quality of communication by decreasing the percentage of flow satisfied. In addition, the growth in energy consumption of RSUs leads to inefficient network management. Being inspired from SDN, a centralized controller can schedule RSUs by providing a fair share of network resources and reduce the total energy consumption of RSUs by switching on/off. More specifically, in this paper, the controller classifies to vehicles based on QoE and defines unsatisfactory vehicles. Then the controller estimates the right amount of power level of these vehicles to connect a new assigned RSU. In this manner, RSUs can be scheduled by switching on/off so that the growth in energy consumption of RSUs can be managed. The evaluations show that the proposed model provides a better flow satisfied and throughput by guaranteeing energy efficiency in SDN-based vehicular networks.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128008817","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 : 2016-05-30DOI: 10.4108/eai.12-12-2017.153464
Marcela M. Gomez, M. Weiss
In this paper, we evaluate the opportunities that Wireless Network Virtualization (WNV) can bring for spectrum sharing by focusing on the regulatory framework that has been deployed by the Federal Communications Commission (FCC) for the 3.5GHz band. We pair this innovative regulatory approach with another novel arrangement, Wireless Network Virtualization, and thus assess the resulting opportunities from the perspectives of regulation, technology and economics. To this end, we have established a comprehensive foundation for further exploration and development of virtualized networks that would provide significant opportunities for enabling and enhancing current sharing arrangements.
{"title":"Wireless Network Virtualization: Opportunities for Spectrum Sharing in the 3.5GHz Band","authors":"Marcela M. Gomez, M. Weiss","doi":"10.4108/eai.12-12-2017.153464","DOIUrl":"https://doi.org/10.4108/eai.12-12-2017.153464","url":null,"abstract":"In this paper, we evaluate the opportunities that Wireless Network Virtualization (WNV) can bring for spectrum sharing by focusing on the regulatory framework that has been deployed by the Federal Communications Commission (FCC) for the 3.5GHz band. We pair this innovative regulatory approach with another novel arrangement, Wireless Network Virtualization, and thus assess the resulting opportunities from the perspectives of regulation, technology and economics. To this end, we have established a comprehensive foundation for further exploration and development of virtualized networks that would provide significant opportunities for enabling and enhancing current sharing arrangements.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130411395","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 : 2016-05-24DOI: 10.4108/eai.3-12-2015.2262577
M. Mahfuz
In this position paper, the roles of sampling rate, i.e. alternatively, sampling time, have been investigated in the receiver design of a concentration-encoded molecular communication (CEMC) system. While several signal detection algorithms so far in CEMC are based on uniform sampling of concentration intensity at the RN, this paper presents four new sampling rate selection schemes based on both uniform and nonuniform sampling rates at the RN, which would potentially be useful in designing computationally-efficient CEMC receiver. This paper has mainly focused on reducing the total number of samples that the RN needs to sense and/or process in order to reduce the computational burden of the receiver.
{"title":"Receiver Design Considerations in Concentration-Encoded Molecular Communication Based on Sampling Rate Selection","authors":"M. Mahfuz","doi":"10.4108/eai.3-12-2015.2262577","DOIUrl":"https://doi.org/10.4108/eai.3-12-2015.2262577","url":null,"abstract":"In this position paper, the roles of sampling rate, i.e. alternatively, sampling time, have been investigated in the receiver design of a \u0000 \u0000concentration-encoded molecular communication (CEMC) system. While several signal detection algorithms so far in CEMC are based \u0000 \u0000on uniform sampling of concentration intensity at the RN, this paper presents four new sampling rate selection schemes based on \u0000 \u0000both uniform and nonuniform sampling rates at the RN, which would potentially be useful in designing computationally-efficient \u0000 \u0000CEMC receiver. This paper has mainly focused on reducing the total number of samples that the RN needs to sense and/or process in order to reduce the computational burden of the receiver.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121304711","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 : 2016-05-24DOI: 10.4108/eai.3-12-2015.2262539
P. Rana, P. Ghosh, K. Pilkiewicz, E. Perkins, Chris Warner, Michael L. Mayo
Molecular communications is an emergent field that seeks to develop nanoscale communication devices using design principles gleaned from studies of the topology and dynamic properties of biological signaling networks. To understand how these networks function, we must first characterize the functional building blocks that compose them, and the best candidates for those are the topologically distinct subnetworks, or motifs, that appear in a statistically improbable abundance. In transcriptional networks, one of the most prevalent motifs is the feed-forward loop, a three node motif wherein one top-level protein regulates the expression of a target gene either directly or indirectly through an intermediate regulator protein. Currently, no systematic effort has been made to treat an isolated feed-forward loop as a stand-alone signal amplifying/attenuating device and understand its communication capacity in terms of the diffusion of individual molecules. To address this issue, we derive a theorem that estimates the upper and lower bounds of the channel capacity for a relay channel, which structurally corresponds to a feed-forward loop, by using an additive inverse Gaussian noise channel model of protein-ligand binding. Our results are just a first step towards assessing the performance bounds of simplified biological circuits in order to guide the development and optimization of synthetic, bio-inspired devices that can be used as information processing and forwarding units.
{"title":"Capacity estimates of additive inverse Gaussian molecular channels with relay characteristics","authors":"P. Rana, P. Ghosh, K. Pilkiewicz, E. Perkins, Chris Warner, Michael L. Mayo","doi":"10.4108/eai.3-12-2015.2262539","DOIUrl":"https://doi.org/10.4108/eai.3-12-2015.2262539","url":null,"abstract":"Molecular communications is an emergent field that seeks to develop nanoscale communication devices using design principles gleaned from studies of the topology and dynamic properties of biological signaling networks. To understand how these networks function, we must first characterize the functional building blocks that compose them, and the best candidates for those are the topologically distinct subnetworks, or motifs, that appear in a statistically improbable abundance. In transcriptional networks, one of the most prevalent motifs is the feed-forward loop, a three node motif wherein one top-level protein regulates the expression of a target gene either directly or indirectly through an intermediate regulator protein. Currently, no systematic effort has been made to treat an isolated feed-forward loop as a stand-alone signal amplifying/attenuating device and understand its communication capacity in terms of the diffusion of individual molecules. To address this issue, we derive a theorem that estimates the upper and lower bounds of the channel capacity for a relay channel, which structurally corresponds to a feed-forward loop, by using an additive inverse Gaussian noise channel model of protein-ligand binding. Our results are just a first step towards assessing the performance bounds of simplified biological circuits in order to guide the development and optimization of synthetic, bio-inspired devices that can be used as information processing and forwarding units.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130126371","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 : 2016-01-19DOI: 10.4108/eai.19-1-2016.151002
S. Sharma, M. Patwary, S. Chatzinotas
The advances in multiple access techniques has been one of the key drivers in moving from one cellular generation to another. Starting from the first generation, several multiple access techniques have been explored in different generations and various emerging multiplexing/multiple access techniques are being investigated for the next generation of cellular networks. In this context, this paper first provides a detailed review on the existing Space Division Multiple Access (SDMA) related works. Subsequently, it highlights the main features and the drawbacks of various existing and emerging multiplexing/multiple access techniques. Finally, we propose a novel concept of clustered orthogonal signature division multiple access for the next generation of cellular networks. The proposed concept envisions to employ joint antenna coding in order to enhance the orthogonality of SDMA beams with the objective of enhancing the spectral efficiency of future cellular networks.
{"title":"Multiple Access Techniques for Next Generation Wireless: Recent Advances and Future Perspectives","authors":"S. Sharma, M. Patwary, S. Chatzinotas","doi":"10.4108/eai.19-1-2016.151002","DOIUrl":"https://doi.org/10.4108/eai.19-1-2016.151002","url":null,"abstract":"The advances in multiple access techniques has been one of the key drivers in moving from one cellular generation to another. Starting from the first generation, several multiple access techniques have been explored in different generations and various emerging multiplexing/multiple access techniques are being investigated for the next generation of cellular networks. In this context, this paper first provides a detailed review on the existing Space Division Multiple Access (SDMA) related works. Subsequently, it highlights the main features and the drawbacks of various existing and emerging multiplexing/multiple access techniques. Finally, we propose a novel concept of clustered orthogonal signature division multiple access for the next generation of cellular networks. The proposed concept envisions to employ joint antenna coding in order to enhance the orthogonality of SDMA beams with the objective of enhancing the spectral efficiency of future cellular networks.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128343064","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 : 2016-01-19DOI: 10.4108/eai.19-1-2016.151001
R. Chhatani, A. Cheeran
The existing wireless network will face the challenge of data tsunami in the near future. Densification of network will deal huge data traffic but will increase the interferences and network cost. At the same time, the existing wireless network is underutilized due to dynamic traffic. To deal with this adverse scenario, a change in the current network architecture is required. Based on virtualization, Cloud Radio Access Network (CRAN) was proposed for wireless network. In CRAN the functionality of base station will be distributed into base band unit (BBU) and remote radio heads (RRH) which will achieve benefits of centralization. This paper presents a survey on CRAN centring on optimized resource allocation, energy efficiency and throughput maximization under fronthaul capacity. The existing solution and future opportunities in CRAN are also summarized.
{"title":"Survey on Cloud Radio Access Network","authors":"R. Chhatani, A. Cheeran","doi":"10.4108/eai.19-1-2016.151001","DOIUrl":"https://doi.org/10.4108/eai.19-1-2016.151001","url":null,"abstract":"The existing wireless network will face the challenge of data tsunami in the near future. Densification of network will deal huge data traffic but will increase the interferences and network cost. At the same time, the existing wireless network is underutilized due to dynamic traffic. To deal with this adverse scenario, a change in the current network architecture is required. Based on virtualization, Cloud Radio Access Network (CRAN) was proposed for wireless network. In CRAN the functionality of base station will be distributed into base band unit (BBU) and remote radio heads (RRH) which will achieve benefits of centralization. This paper presents a survey on CRAN centring on optimized resource allocation, energy efficiency and throughput maximization under fronthaul capacity. The existing solution and future opportunities in CRAN are also summarized.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114892168","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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