Pub Date : 2020-04-07DOI: 10.4108/eai.7-4-2020.163923
J. Vartiainen, H. Karvonen, Marja Matinmikko-Blue, L. Mendes, H. Saarnisaari, Alexandre Matos
Remote and rural areas are a challenge to deploy cost-efficient connectivity solutions. 5G technology needs lower frequencies, which calls for spectrum sharing for local networks. Spectrum sensing could complement traditional database approach for spectrum sharing in these areas. This paper studies a windowing based (WIBA) blind spectrum sensing method and compares its performance to a localization algorithm based on double-thresholding (LAD). Both methods are based on energy detection and can be used in any band for detecting rather narrowband signals. Probabilities of detection and false alarm, relative mean square error, number of detected signals and detection distances were evaluated in multipath, multi-signal and rural area channel conditions. The simulation results show tha the WIBA method is suitable for 5G remote areas, due to its good detection performance in low signal-to-noise ratios (SNR) with low complexity. Results also show importance of the detection window selection. Received on 30 October 2019; accepted on 12 March 2020; published on 07 April 2020
{"title":"Energy Detection Based Spectrum Sensing for Rural Area Networks","authors":"J. Vartiainen, H. Karvonen, Marja Matinmikko-Blue, L. Mendes, H. Saarnisaari, Alexandre Matos","doi":"10.4108/eai.7-4-2020.163923","DOIUrl":"https://doi.org/10.4108/eai.7-4-2020.163923","url":null,"abstract":"Remote and rural areas are a challenge to deploy cost-efficient connectivity solutions. 5G technology needs lower frequencies, which calls for spectrum sharing for local networks. Spectrum sensing could complement traditional database approach for spectrum sharing in these areas. This paper studies a windowing based (WIBA) blind spectrum sensing method and compares its performance to a localization algorithm based on double-thresholding (LAD). Both methods are based on energy detection and can be used in any band for detecting rather narrowband signals. Probabilities of detection and false alarm, relative mean square error, number of detected signals and detection distances were evaluated in multipath, multi-signal and rural area channel conditions. The simulation results show tha the WIBA method is suitable for 5G remote areas, due to its good detection performance in low signal-to-noise ratios (SNR) with low complexity. Results also show importance of the detection window selection. Received on 30 October 2019; accepted on 12 March 2020; published on 07 April 2020","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"292 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129257707","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 : 2020-03-25DOI: 10.4108/eai.13-7-2018.163841
H. Albonda, J. Pérez-Romero
This work was supported in part by the Spanish Research Council and FEDER Funds under SONAR 5G Grant with reference TEC2017-82651-R, and in part by the Baghdad University of Technology
{"title":"Analysis of RAN Slicing for Cellular V2X and Mobile Broadband Services Based on Reinforcement Learning","authors":"H. Albonda, J. Pérez-Romero","doi":"10.4108/eai.13-7-2018.163841","DOIUrl":"https://doi.org/10.4108/eai.13-7-2018.163841","url":null,"abstract":"This work was supported in part by the Spanish Research Council and FEDER Funds under SONAR 5G Grant with reference TEC2017-82651-R, and in part by the Baghdad University of Technology","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114676810","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 : 2019-07-02DOI: 10.4108/EAI.12-12-2017.159349
P. Jiang, Mitchell Zhou, Song Wen
To address the challenges caused by the time-varying rate requirement for multimedia communication sessions, we propose a Priority Based Routing and link Scheduling (PBRS) scheme for multi-hop cognitive radio networks. The objective is to minimize disruption to communication sessions due to channel switching as well as to minimize network resource consumption for multimedia applications based on a prioritized routing and resource allocation scheme. PBRS includes a priority based optimization formulation and an efficient algorithm to solve the problem. The main idea is to allocate the available resource to different types of services with their Quality of Experience (QoE) expectation as well as maintain a priority service queue. Services with higher priority such video conference with cognitive radio expects a lower latency during the communication, whereas services with lower priority such as file transferring could tolerate more interruptions. Based on the different QoE requirements of services, PBRS will decide whether or not to change the routing and link scheduling. If a session has a higher priority than the others, PBRS will maintain its routes, channels, and links to the next timeslot as long as the total white space resource is enough to support all sessions. This eliminates unnecessary channel switching due to rescheduling. Simulation results demonstrate that PBRS effectively reduces channel switching and hence reduce disruption to communication sessions. Received on 12 December 2018; accepted on 16 May 2019; published on 02 July 2019
{"title":"Priority Based Routing and Link Scheduling for Cognitive Radio Networks","authors":"P. Jiang, Mitchell Zhou, Song Wen","doi":"10.4108/EAI.12-12-2017.159349","DOIUrl":"https://doi.org/10.4108/EAI.12-12-2017.159349","url":null,"abstract":"To address the challenges caused by the time-varying rate requirement for multimedia communication sessions, we propose a Priority Based Routing and link Scheduling (PBRS) scheme for multi-hop cognitive radio networks. The objective is to minimize disruption to communication sessions due to channel switching as well as to minimize network resource consumption for multimedia applications based on a prioritized routing and resource allocation scheme. PBRS includes a priority based optimization formulation and an efficient algorithm to solve the problem. The main idea is to allocate the available resource to different types of services with their Quality of Experience (QoE) expectation as well as maintain a priority service queue. Services with higher priority such video conference with cognitive radio expects a lower latency during the communication, whereas services with lower priority such as file transferring could tolerate more interruptions. Based on the different QoE requirements of services, PBRS will decide whether or not to change the routing and link scheduling. If a session has a higher priority than the others, PBRS will maintain its routes, channels, and links to the next timeslot as long as the total white space resource is enough to support all sessions. This eliminates unnecessary channel switching due to rescheduling. Simulation results demonstrate that PBRS effectively reduces channel switching and hence reduce disruption to communication sessions. Received on 12 December 2018; accepted on 16 May 2019; published on 02 July 2019","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133133747","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 : 2018-07-13DOI: 10.4108/eai.13-7-2018.163805
J. Glowacka, P. Gajewski, M. Ciołek, K. Parobczak, J. Wojtun
INTRODUCTION: The Authors present a new approach to a method of dynamic spectrum management for military mobile ad hoc network. They propose that data concerning vital signs of tactical radio operators be used as context information for spectrum management. If the operator’s inability to operate and protect the tactical radio is identified, actions (remote control of radio) are taken with the aim to release spectrum resources which used by the radio. Additionally, in this case remote control of radio allows switch the radio to modes used by search and rescue teams and lock the radio for unauthorized person. OBJECTIVES: The primary objective of this study was use vital signs of tactical radio operator’s as context information for dynamic spectrum management within MANET. METHODS: Tests for correct detection of vital signs were carried out for data generated on a Hal S3201 adult patient simulator. Hypotheses about radio operator's vital signs were verified by means of a belief function defined in DempsterShafer theory. RESULTS: Loss vital signs by the operator allows to remote turn off his/her tactical radio while allocating more resources to other network users, which allow increasing data throughput. CONCLUSION: Monitoring vital signs of a tactical radio operator enables detecting combat readiness loss which results in inability to protect communications and can be used in spectrum management mechanisms.
{"title":"Use of tactical radio operator's vital signs as context information for dynamic spectrum management within MANETs","authors":"J. Glowacka, P. Gajewski, M. Ciołek, K. Parobczak, J. Wojtun","doi":"10.4108/eai.13-7-2018.163805","DOIUrl":"https://doi.org/10.4108/eai.13-7-2018.163805","url":null,"abstract":"INTRODUCTION: The Authors present a new approach to a method of dynamic spectrum management for military mobile ad hoc network. They propose that data concerning vital signs of tactical radio operators be used as context information for spectrum management. If the operator’s inability to operate and protect the tactical radio is identified, actions (remote control of radio) are taken with the aim to release spectrum resources which used by the radio. Additionally, in this case remote control of radio allows switch the radio to modes used by search and rescue teams and lock the radio for unauthorized person. OBJECTIVES: The primary objective of this study was use vital signs of tactical radio operator’s as context information for dynamic spectrum management within MANET. METHODS: Tests for correct detection of vital signs were carried out for data generated on a Hal S3201 adult patient simulator. Hypotheses about radio operator's vital signs were verified by means of a belief function defined in DempsterShafer theory. RESULTS: Loss vital signs by the operator allows to remote turn off his/her tactical radio while allocating more resources to other network users, which allow increasing data throughput. CONCLUSION: Monitoring vital signs of a tactical radio operator enables detecting combat readiness loss which results in inability to protect communications and can be used in spectrum management mechanisms.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117152930","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 : 2018-07-13DOI: 10.4108/eai.13-7-2018.159350
Jin Zhang, Yalong Wu, James H. Nguyen, Wei Yu, Chao Lu, Daniel Ku
In Long Term Evolution (LTE) networks, centroid topology optimization (CTO)-based schemes have been widely used to construct network topologies such that overall network performance is improved. In this paper, we systematically analyze CTO-based schemes and develop new schemes to improve network performance by reconnecting disconnected devices. First, we conduct an investigation of CTO-based schemes to understand their limitations. Then, we propose two schemes, called the Power Control-based scheme and Femto Relaybased scheme, to overcome this limitation in LTE networks, in which CTO-based schemes are implemented. Via intensive performance evaluation using NS3, we validate the effectiveness of our proposed schemes towards addressing the limitations of CTO-based schemes. Our results demonstrate an improvement in LTE network performance above both the unoptimized and CTO-based schemes with respect to throughput, delay, delay standard deviation (DSD), etc. Received on 19 December 2018; accepted on 17 June 2019; published on 02 July 2019
{"title":"On Performance Improvement of Centroid Topology Optimization Schemes in LTE Networks","authors":"Jin Zhang, Yalong Wu, James H. Nguyen, Wei Yu, Chao Lu, Daniel Ku","doi":"10.4108/eai.13-7-2018.159350","DOIUrl":"https://doi.org/10.4108/eai.13-7-2018.159350","url":null,"abstract":"In Long Term Evolution (LTE) networks, centroid topology optimization (CTO)-based schemes have been widely used to construct network topologies such that overall network performance is improved. In this paper, we systematically analyze CTO-based schemes and develop new schemes to improve network performance by reconnecting disconnected devices. First, we conduct an investigation of CTO-based schemes to understand their limitations. Then, we propose two schemes, called the Power Control-based scheme and Femto Relaybased scheme, to overcome this limitation in LTE networks, in which CTO-based schemes are implemented. Via intensive performance evaluation using NS3, we validate the effectiveness of our proposed schemes towards addressing the limitations of CTO-based schemes. Our results demonstrate an improvement in LTE network performance above both the unoptimized and CTO-based schemes with respect to throughput, delay, delay standard deviation (DSD), etc. Received on 19 December 2018; accepted on 17 June 2019; published on 02 July 2019","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122090310","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 : 2018-07-13DOI: 10.4108/eai.12-12-2017.156588
James H. Nguyen, Wei Yu
In this paper, we introduce an Software Defined Networking (SDN)-based approach to support the network operations of heterogeneous hierarchical multi-domain Mobile Ad hoc Networks (MANETs). Our approach offers several capabilities, including seamlessly interconnecting heterogeneous MANETs, reducing routing decision loads of gateway routers, and managing end-devices at the network edge from the Network Operation Center (NOC) with our SDN Proxy Protocol. To assess the feasibility of our proposed approach, we setup an emulation environment, and implement our designed system via the Constrained Application Protocol (CoAP), additionally integrating OLSRv2, OSPF-MDR, Babel, and others. Based on a set of designed test scenarios, we then carry out an extensive performance evaluation of our approach. Our experimental results show significant network performance improvements at the gateway routers. The SDN Proxy Protocol also outperforms the traditional CoAP-to-CoAP communication when network instability exists.
{"title":"Towards to Inter-domain Network Operations for Dynamic Networks with Software Defined Networking (SDN)","authors":"James H. Nguyen, Wei Yu","doi":"10.4108/eai.12-12-2017.156588","DOIUrl":"https://doi.org/10.4108/eai.12-12-2017.156588","url":null,"abstract":"In this paper, we introduce an Software Defined Networking (SDN)-based approach to support the network operations of heterogeneous hierarchical multi-domain Mobile Ad hoc Networks (MANETs). Our approach offers several capabilities, including seamlessly interconnecting heterogeneous MANETs, reducing routing decision loads of gateway routers, and managing end-devices at the network edge from the Network Operation Center (NOC) with our SDN Proxy Protocol. To assess the feasibility of our proposed approach, we setup an emulation environment, and implement our designed system via the Constrained Application Protocol (CoAP), additionally integrating OLSRv2, OSPF-MDR, Babel, and others. Based on a set of designed test scenarios, we then carry out an extensive performance evaluation of our approach. Our experimental results show significant network performance improvements at the gateway routers. The SDN Proxy Protocol also outperforms the traditional CoAP-to-CoAP communication when network instability exists.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"22 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132063909","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 : 2017-12-12DOI: 10.4108/eai.12-12-2017.153465
Yalong Wu, Wei Yu, Fang Yuan, Jin Zhang, Chao Lu, James H. Nguyen, Daniel Ku
In this paper, we propose a cross-domain optimization (CDO) scheme, which optimizes the MANET topology and enables communication between multiple MANETs via LTE. Particularly, we first deploy a gateway to the center of gravity of all nodes in each MANET so that the network topology is optimized. Thus, the aggregation cost of intra-MANET traffic in the gateway is improved. Likewise, we then deploy an eNodeB in the center of gravity of all gateways to establish communication connections between multiple MANETs via LTE. Then, the aggregation cost of inter-MANET traffic at eNodeBs can be largely reduced because of the minimization of the distances between eNodeBs and gateways, along with a significant performance improvement of inter-MANET communications owing to the superiority of LTE. Vis extensive simulations, we validate the effectiveness of our proposed scheme. Our experimental results demonstrate that the CDO scheme can greatly improve network performance. Finally, we discuss some other issues. Received on 5 December 2017; accepted on 5 December 2017; published on 12 December 2017
{"title":"A Cross-Domain Optimization Scheme for MANET Communications in Heterogeneous Networks","authors":"Yalong Wu, Wei Yu, Fang Yuan, Jin Zhang, Chao Lu, James H. Nguyen, Daniel Ku","doi":"10.4108/eai.12-12-2017.153465","DOIUrl":"https://doi.org/10.4108/eai.12-12-2017.153465","url":null,"abstract":"In this paper, we propose a cross-domain optimization (CDO) scheme, which optimizes the MANET topology and enables communication between multiple MANETs via LTE. Particularly, we first deploy a gateway to the center of gravity of all nodes in each MANET so that the network topology is optimized. Thus, the aggregation cost of intra-MANET traffic in the gateway is improved. Likewise, we then deploy an eNodeB in the center of gravity of all gateways to establish communication connections between multiple MANETs via LTE. Then, the aggregation cost of inter-MANET traffic at eNodeBs can be largely reduced because of the minimization of the distances between eNodeBs and gateways, along with a significant performance improvement of inter-MANET communications owing to the superiority of LTE. Vis extensive simulations, we validate the effectiveness of our proposed scheme. Our experimental results demonstrate that the CDO scheme can greatly improve network performance. Finally, we discuss some other issues. Received on 5 December 2017; accepted on 5 December 2017; published on 12 December 2017","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133813529","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 : 2017-12-12DOI: 10.4108/eai.12-12-2017.153467
Longjie Zhou, Yongqun Zhu, Wenbin Zeng
This paper investigates how to increase communication distance of underwater wireless optical communication system. In order to analyze the communication distance of UWOC, the performance of optical transmitter and receiver, underwater channel characterization and modulation schemes were discussed. The communication link model was established based the on Beer-Lambert Law. The suitable transmitter power and the maximum communication were achieved in order to achieve communication rate to 1Mbits/s and bit error rate to 10 .This paper not only provides comprehensive understanding of UWOC, but also aims to provide a theoretical foundation for designing the underwater wireless optical communication system and optimizing the system parameters.
{"title":"Analysis and Simulation of Link Performance for Underwater Wireless Optical Communications","authors":"Longjie Zhou, Yongqun Zhu, Wenbin Zeng","doi":"10.4108/eai.12-12-2017.153467","DOIUrl":"https://doi.org/10.4108/eai.12-12-2017.153467","url":null,"abstract":"This paper investigates how to increase communication distance of underwater wireless optical communication system. In order to analyze the communication distance of UWOC, the performance of optical transmitter and receiver, underwater channel characterization and modulation schemes were discussed. The communication link model was established based the on Beer-Lambert Law. The suitable transmitter power and the maximum communication were achieved in order to achieve communication rate to 1Mbits/s and bit error rate to 10 .This paper not only provides comprehensive understanding of UWOC, but also aims to provide a theoretical foundation for designing the underwater wireless optical communication system and optimizing the system parameters.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134147576","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 : 2017-12-12DOI: 10.4108/eai.12-12-2017.153463
Seppo Yrjölä, H. Kokkinen
This paper discusses the regulatory and standardization status of the Licensed Shared Access (LSA), compares it with the US Citizens Broadband Radio Service concept, and reviews results from the ongoing feasibility study in the European Telecommunications Standards Institute on temporary spectrum access for local high-quality wireless networks. Based on comparative analysis, a new LSA evolution concept and functional architecture is proposed, and the early results of the world first LSAevo validation are presented. Introduced system architecture can be applied to 3.4-3.8 GHz band so that fragmentation challenges to take the band into 5G use in the European member states can be solved, while ensuring that the communication of the incumbent users, fixed wireless access, fixed links, and satellite earth stations do not experience any harmful interference. In the end-to-end field trial, local high-quality wireless network use case for an industrial automation Micro-operator is validated.
{"title":"Licensed Shared Access evolution enables early access to 5G spectrum and novel use cases","authors":"Seppo Yrjölä, H. Kokkinen","doi":"10.4108/eai.12-12-2017.153463","DOIUrl":"https://doi.org/10.4108/eai.12-12-2017.153463","url":null,"abstract":"This paper discusses the regulatory and standardization status of the Licensed Shared Access (LSA), compares it with the US Citizens Broadband Radio Service concept, and reviews results from the ongoing feasibility study in the European Telecommunications Standards Institute on temporary spectrum access for local high-quality wireless networks. Based on comparative analysis, a new LSA evolution concept and functional architecture is proposed, and the early results of the world first LSAevo validation are presented. Introduced system architecture can be applied to 3.4-3.8 GHz band so that fragmentation challenges to take the band into 5G use in the European member states can be solved, while ensuring that the communication of the incumbent users, fixed wireless access, fixed links, and satellite earth stations do not experience any harmful interference. In the end-to-end field trial, local high-quality wireless network use case for an industrial automation Micro-operator is validated.","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132721017","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 : 2017-12-12DOI: 10.4108/eai.12-12-2017.153466
Yangxiao Zhao, Zhiming Hong, Yu Luo, Guodong Wang, Lina Pu
The majority of existing spectrum prediction models in Cognitive Radio Networks (CRNs) don’t fully explore the hidden correlation among adjacent observations. In this paper, we first develop a novel prediction approach termed high-order hidden bivariate Markov model (H2BMM) for a stationary CRN. The proposed H2BMM leverages the advantages of both HBMM and high-order, which applies two dimensional parameters, i.e., hidden process and underlying process, to more accurately describe the channel behavior. In addition, the current channel state is predicted by observingmultiple previous states. Afterwards, themobility of secondary users is fully considered and we propose an advanced approach based on H2BMM, termed Advanced H2BMM, to accommodate a mobile CRN. Extensive simulations are conducted and results verify that the prediction accuracy is significantly improved using the proposed (H2BMM. The Advanced H2BMM is also evaluated with comparison to H2BMM and results show considerable improvements of H2BMM in a mobile environment. Received on 7 December 2017; accepted on 9 December 2017; published on 12 December 2017
{"title":"Advanced High-order Hidden Bivariate Markov Model Based Spectrum Prediction","authors":"Yangxiao Zhao, Zhiming Hong, Yu Luo, Guodong Wang, Lina Pu","doi":"10.4108/eai.12-12-2017.153466","DOIUrl":"https://doi.org/10.4108/eai.12-12-2017.153466","url":null,"abstract":"The majority of existing spectrum prediction models in Cognitive Radio Networks (CRNs) don’t fully explore the hidden correlation among adjacent observations. In this paper, we first develop a novel prediction approach termed high-order hidden bivariate Markov model (H2BMM) for a stationary CRN. The proposed H2BMM leverages the advantages of both HBMM and high-order, which applies two dimensional parameters, i.e., hidden process and underlying process, to more accurately describe the channel behavior. In addition, the current channel state is predicted by observingmultiple previous states. Afterwards, themobility of secondary users is fully considered and we propose an advanced approach based on H2BMM, termed Advanced H2BMM, to accommodate a mobile CRN. Extensive simulations are conducted and results verify that the prediction accuracy is significantly improved using the proposed (H2BMM. The Advanced H2BMM is also evaluated with comparison to H2BMM and results show considerable improvements of H2BMM in a mobile environment. Received on 7 December 2017; accepted on 9 December 2017; published on 12 December 2017","PeriodicalId":288158,"journal":{"name":"EAI Endorsed Trans. Wirel. Spectr.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129727098","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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