Pub Date : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849967
Shuai Huang, Lin Lin, Weisi Guo, Hao Yan, Juan Xu, Fuqiang Liu
Mobile molecular communication (MC) attracts much attention in recent years where mobile nanomachines exchange information using molecules. In this paper, we consider a diffusion-based mobile MC system consisting a pair of diffusive nanomachines. Due to the Brownian motion of nanomachines, the distance between them is a stochastic process. In this paper, its probability density function (PDF) is derived by characterizing nanomachines' motion as Wiener process. Besides, the initial distance between nanomachines is a significant parameter of diffusive mobile MC systems. With the knowledge of initial distance, the expected channel impulse response (CIR) can be obtained and the detection threshold can be set in advance. A novel two-step scheme is proposed to estimate the initial distance by maximum likelihood (ML) estimation. Firstly, the releasing distance is estimated based on observations of the number of received molecules. Secondly, the estimation of the releasing distance is used as an observation to estimate the initial distance by ML estimation. The performance of proposed scheme is evaluated via particle-based simulation of the Brownian motion.
{"title":"Initial Distance Estimation for Diffusive Mobile Molecular Communication Systems","authors":"Shuai Huang, Lin Lin, Weisi Guo, Hao Yan, Juan Xu, Fuqiang Liu","doi":"10.1109/ICCChinaW.2019.8849967","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849967","url":null,"abstract":"Mobile molecular communication (MC) attracts much attention in recent years where mobile nanomachines exchange information using molecules. In this paper, we consider a diffusion-based mobile MC system consisting a pair of diffusive nanomachines. Due to the Brownian motion of nanomachines, the distance between them is a stochastic process. In this paper, its probability density function (PDF) is derived by characterizing nanomachines' motion as Wiener process. Besides, the initial distance between nanomachines is a significant parameter of diffusive mobile MC systems. With the knowledge of initial distance, the expected channel impulse response (CIR) can be obtained and the detection threshold can be set in advance. A novel two-step scheme is proposed to estimate the initial distance by maximum likelihood (ML) estimation. Firstly, the releasing distance is estimated based on observations of the number of received molecules. Secondly, the estimation of the releasing distance is used as an observation to estimate the initial distance by ML estimation. The performance of proposed scheme is evaluated via particle-based simulation of the Brownian motion.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123390289","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849970
Youyou Zhang, Qianqian Zhang, Ying-Chang Liang, P. Kam
Ambient backscatter communication (AmBC) is a promising technology for energy-and spectrum-efficient Internet of Things (IoT) communication. In an AmBC system, due to the strong direct link interference and the difficulty in acquiring the channel state information (CSI), the detection of IoT device symbol becomes difficult. In this paper, we propose a semi-blind receiver, which includes the semi-blind channel estimator and the direct-link-averaging detector (DL-AD). The semi-blind channel estimator only relies on two pilot symbols from the IoT device to indicate different CSI without the RF source pilots, and can eliminate the effect of the RF source symbols. The DL-AD is based on the log likelihood ratio test. The simulation results show that the semi-blind receiver has very similar error probability performance compared with the constellation learning (CL) receiver that we proposed earlier, and it is simpler than the CL receiver. We also propose an iterative version of the semiblind receiver that has improved performance as shown in simulations.
{"title":"A Semi-Blind Receiver for Ambient Backscatter Communications with MPSK RF Source","authors":"Youyou Zhang, Qianqian Zhang, Ying-Chang Liang, P. Kam","doi":"10.1109/ICCChinaW.2019.8849970","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849970","url":null,"abstract":"Ambient backscatter communication (AmBC) is a promising technology for energy-and spectrum-efficient Internet of Things (IoT) communication. In an AmBC system, due to the strong direct link interference and the difficulty in acquiring the channel state information (CSI), the detection of IoT device symbol becomes difficult. In this paper, we propose a semi-blind receiver, which includes the semi-blind channel estimator and the direct-link-averaging detector (DL-AD). The semi-blind channel estimator only relies on two pilot symbols from the IoT device to indicate different CSI without the RF source pilots, and can eliminate the effect of the RF source symbols. The DL-AD is based on the log likelihood ratio test. The simulation results show that the semi-blind receiver has very similar error probability performance compared with the constellation learning (CL) receiver that we proposed earlier, and it is simpler than the CL receiver. We also propose an iterative version of the semiblind receiver that has improved performance as shown in simulations.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114720532","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849958
Xinwei Yao, Chao-Chao Wang, Chu-Feng Qi
A general framework to comprehensively investigate the interference and the coverage performance is proposed in this paper for indoor Terahertz (THz) communication with beamforming antenna. The interference of direct and scattering rays from users and Access Points (APs) are separately analyzed by using distance-dependent probability functions. Moreover, the users and APs are all equipped with beamforming antennas. Then, the coverage probabilities are derived as a function of the AP density, user density, transmission distance, beamforming gain and SINR (Signal to Interference plus Noise Ratio) threshold. The numerical results show the effects of these parameters on the interference and coverage probability, which will guide the design and placement of users and APs in future indoor THz networks to mitigate the interference and achieve a better throughput.
{"title":"Interference and Coverage Analysis for Indoor THz Communications with Beamforming Antennas","authors":"Xinwei Yao, Chao-Chao Wang, Chu-Feng Qi","doi":"10.1109/ICCChinaW.2019.8849958","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849958","url":null,"abstract":"A general framework to comprehensively investigate the interference and the coverage performance is proposed in this paper for indoor Terahertz (THz) communication with beamforming antenna. The interference of direct and scattering rays from users and Access Points (APs) are separately analyzed by using distance-dependent probability functions. Moreover, the users and APs are all equipped with beamforming antennas. Then, the coverage probabilities are derived as a function of the AP density, user density, transmission distance, beamforming gain and SINR (Signal to Interference plus Noise Ratio) threshold. The numerical results show the effects of these parameters on the interference and coverage probability, which will guide the design and placement of users and APs in future indoor THz networks to mitigate the interference and achieve a better throughput.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131248372","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}
Most applications of vehicular networks, such as automatic drive, are based on accurate relative position and orientation information of neighboring vehicles. Due to the geospatial restriction, ground cellular networks are not always available thus non-terrestrial networks such as unmanned aerial vehicles (UAV) and satellites can be used to support the localization of the vehicles. In this paper, we propose an UAV-aided relative localization scheme for ground vehicles. Each node makes time delay and angle measurements with other nodes, and receives GPS signals. The Fisher information matrix (FIM) is derived for the location, orientation and clock bias parameters. The FIM consists of two parts corresponding to the time delay and angle measurements, respectively. Both the absolute and relative localization are studied, and the Cramér-Rao lower bounds for absolute and relative position errors are derived using the information inequality and subspace projection. The simulation results show that the scheme can achieve half-meter relative position accuracy and one-degree orientation accuracy.
{"title":"Relative Localization of Ground Vehicles Using Non-Terrestrial Networks","authors":"Yuanpeng Liu, Wenxuan Li, Qianxi Lu, Jian Wang, Yuan Shen","doi":"10.1109/ICCChinaW.2019.8849963","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849963","url":null,"abstract":"Most applications of vehicular networks, such as automatic drive, are based on accurate relative position and orientation information of neighboring vehicles. Due to the geospatial restriction, ground cellular networks are not always available thus non-terrestrial networks such as unmanned aerial vehicles (UAV) and satellites can be used to support the localization of the vehicles. In this paper, we propose an UAV-aided relative localization scheme for ground vehicles. Each node makes time delay and angle measurements with other nodes, and receives GPS signals. The Fisher information matrix (FIM) is derived for the location, orientation and clock bias parameters. The FIM consists of two parts corresponding to the time delay and angle measurements, respectively. Both the absolute and relative localization are studied, and the Cramér-Rao lower bounds for absolute and relative position errors are derived using the information inequality and subspace projection. The simulation results show that the scheme can achieve half-meter relative position accuracy and one-degree orientation accuracy.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"128 19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133543267","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849937
Liting Yang, Xin Ge, Qiang Liu, Kun Yang, Yifan Chen, T. Nakano
In chemotaxis-based multi-hop molecular nanonet-works for target detection, nanomachines move toward a target with the help of relay nodes. In this paper, we develop a generalized multi-hop molecular nanonetwork model and investigate the effect of adding relay nodes on target detection performance. We first use mathematical models to describe the behavior of nanomachines and relay nodes. We then conduct simulation experiments to understand the target detection performance of multi-hop molecular nanonetworks.
{"title":"Chemotaxis-based Multi-hop Molecular Nanonetworks for Target Detection","authors":"Liting Yang, Xin Ge, Qiang Liu, Kun Yang, Yifan Chen, T. Nakano","doi":"10.1109/ICCChinaW.2019.8849937","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849937","url":null,"abstract":"In chemotaxis-based multi-hop molecular nanonet-works for target detection, nanomachines move toward a target with the help of relay nodes. In this paper, we develop a generalized multi-hop molecular nanonetwork model and investigate the effect of adding relay nodes on target detection performance. We first use mathematical models to describe the behavior of nanomachines and relay nodes. We then conduct simulation experiments to understand the target detection performance of multi-hop molecular nanonetworks.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129460238","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849952
Junxu Hou, Xiaoxiang Wang, Dongyu Wang, Yanwen Lan, Zhaolin Liu
Mobile Edge Computing (MEC) provides a promising way to tackle computation-extensive tasks. While the resources of MEC are limited, D2D collaborative offloading is taken into consideration in existing literature. However, most of the existing schemes ignore D2D users' social attributes like selfishness and profit-seeking. In this paper, a hybrid computation offloading and resource allocation scheme is proposed, which includes D2D offloading mode and cellular offloading mode. In this scheme, the D2D-selected strategy, mode selection policy, offloading ratio and computation resource assignment are all considered. Firstly, a revenue-maximization problem of request users is formulated. The problem is non-convex and is difficult to solve in a polynomial time. Then, we decompose it into two sub-problems, which mean social-aware D2D-selected problem and offloading optimization problem. The former one is a matching problem and solved by Hungarian Algorithm while the after one is convex and is solved by an iterative algorithm with the adoption of Lagrange multiplier method. At last, Simulation results show the effectiveness of proposed scheme compared with other baseline schemes.
{"title":"Computation Offloading Strategy in D2D-assisted Cellular Networks with Mobile Edge Computing","authors":"Junxu Hou, Xiaoxiang Wang, Dongyu Wang, Yanwen Lan, Zhaolin Liu","doi":"10.1109/ICCChinaW.2019.8849952","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849952","url":null,"abstract":"Mobile Edge Computing (MEC) provides a promising way to tackle computation-extensive tasks. While the resources of MEC are limited, D2D collaborative offloading is taken into consideration in existing literature. However, most of the existing schemes ignore D2D users' social attributes like selfishness and profit-seeking. In this paper, a hybrid computation offloading and resource allocation scheme is proposed, which includes D2D offloading mode and cellular offloading mode. In this scheme, the D2D-selected strategy, mode selection policy, offloading ratio and computation resource assignment are all considered. Firstly, a revenue-maximization problem of request users is formulated. The problem is non-convex and is difficult to solve in a polynomial time. Then, we decompose it into two sub-problems, which mean social-aware D2D-selected problem and offloading optimization problem. The former one is a matching problem and solved by Hungarian Algorithm while the after one is convex and is solved by an iterative algorithm with the adoption of Lagrange multiplier method. At last, Simulation results show the effectiveness of proposed scheme compared with other baseline schemes.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127542787","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849930
Junjian Huang, Hongyu Zhang, Faying He, Hu Huanyang
In this paper, we propose a measurement method to measure the energy distribution of the two-coil WPT-MRC system. We layer the energy transfer space, measure the load voltage of the receiver at the sampling point of each layer to obtain the energy distribution of the transmitter in space, and then establish a transmission model from the transmitter to the single receiver. We analyze the energy distribution of the transmitter in the transmission space by 3-D view and contour map. The area where the receiver overlaps with the single transmitter increases, the energy obtained increases. The receiver obtains the maximum energy at the area where the receiver is facing a single transmitter or the receiver is located at the center of symmetry of the transmitter array. At close range, the energy reaches a local minimum when the receiver is facing a single transmitter.
{"title":"Space Propagation Model for Wireless Power Transfer System of Dual Transmitter","authors":"Junjian Huang, Hongyu Zhang, Faying He, Hu Huanyang","doi":"10.1109/ICCChinaW.2019.8849930","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849930","url":null,"abstract":"In this paper, we propose a measurement method to measure the energy distribution of the two-coil WPT-MRC system. We layer the energy transfer space, measure the load voltage of the receiver at the sampling point of each layer to obtain the energy distribution of the transmitter in space, and then establish a transmission model from the transmitter to the single receiver. We analyze the energy distribution of the transmitter in the transmission space by 3-D view and contour map. The area where the receiver overlaps with the single transmitter increases, the energy obtained increases. The receiver obtains the maximum energy at the area where the receiver is facing a single transmitter or the receiver is located at the center of symmetry of the transmitter array. At close range, the energy reaches a local minimum when the receiver is facing a single transmitter.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114055728","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}
Clustering method has attracted wide attention in the area of wireless sensor networks (WSNs) due to its significant contributions to balance the loads and prolong the lifetime of sensor nodes. This paper focuses on the clustering method in UAV-assisted WSNs, in which UAV can fly to a sensor node to collect data and then fetch the collected data to the nearby base station. We firstly execute the clustering procedure using Kmeans++ considering the uneven distributions of sensor nodes in the real world, which is different from LEACH and grid divide method typically used in previous clustering methods. Secondly, we apply the fuzzy logic method to dynamically choose cluster heads according to the remaining energy and storage of sensor nodes. Simulation results show that our method performs better on the lifetime prolongations and package loss reductions compared to LEACH, Voronoi divide algorithm, and grid divide algorithm.
{"title":"Energy-efficient and Low Package Loss Clustering in UAV-assisted WSN using Kmeans++ and Fuzzy Logic","authors":"Jinlong Mi, X. Wen, Chunlei Sun, Zhaoming Lu, Wenpeng Jing","doi":"10.1109/ICCChinaW.2019.8849956","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849956","url":null,"abstract":"Clustering method has attracted wide attention in the area of wireless sensor networks (WSNs) due to its significant contributions to balance the loads and prolong the lifetime of sensor nodes. This paper focuses on the clustering method in UAV-assisted WSNs, in which UAV can fly to a sensor node to collect data and then fetch the collected data to the nearby base station. We firstly execute the clustering procedure using Kmeans++ considering the uneven distributions of sensor nodes in the real world, which is different from LEACH and grid divide method typically used in previous clustering methods. Secondly, we apply the fuzzy logic method to dynamically choose cluster heads according to the remaining energy and storage of sensor nodes. Simulation results show that our method performs better on the lifetime prolongations and package loss reductions compared to LEACH, Voronoi divide algorithm, and grid divide algorithm.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115648218","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849934
Wenxiao Shi, Liqiu Zhai, Min Ouyang, Jiadong Zhang
As a wireless network structure that can solve the “last kilometer” bottleneck of the Internet, Wireless Mesh Network (WMN) has been one of the hot topics in wireless network. However, the existing WMN is difficult to meet the future demand of delay. Mobile Edge Computing (MEC) is an emerging technology that can significantly reduce latency. With the rapid development of 5G communications and compute-intensive applications, MEC has attracted more and more attention. Combining WMN with MEC can make the WMN better meet the delay requirements of future network. In this paper, we propose a cluster scheme to deploy Mobile Edge Computing Server (MECS). We first select appropriate cluster heads as the Mesh Gateways (MGs) according to the computation tasks of the node and the number of neighbor nodes. Then cluster the WMN according to the computation capability and Hop-count constraints. The MECS is deployed in the MG to provide services for Mesh Clients (MCs) offloading computing tasks. The simulation results show that the scheme can effectively improve the performance of WMN in terms of delay.
{"title":"A Mobile Edge Computing Server Deployment Scheme in Wireless Mesh Network","authors":"Wenxiao Shi, Liqiu Zhai, Min Ouyang, Jiadong Zhang","doi":"10.1109/ICCChinaW.2019.8849934","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849934","url":null,"abstract":"As a wireless network structure that can solve the “last kilometer” bottleneck of the Internet, Wireless Mesh Network (WMN) has been one of the hot topics in wireless network. However, the existing WMN is difficult to meet the future demand of delay. Mobile Edge Computing (MEC) is an emerging technology that can significantly reduce latency. With the rapid development of 5G communications and compute-intensive applications, MEC has attracted more and more attention. Combining WMN with MEC can make the WMN better meet the delay requirements of future network. In this paper, we propose a cluster scheme to deploy Mobile Edge Computing Server (MECS). We first select appropriate cluster heads as the Mesh Gateways (MGs) according to the computation tasks of the node and the number of neighbor nodes. Then cluster the WMN according to the computation capability and Hop-count constraints. The MECS is deployed in the MG to provide services for Mesh Clients (MCs) offloading computing tasks. The simulation results show that the scheme can effectively improve the performance of WMN in terms of delay.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127512325","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 : 2019-08-01DOI: 10.1109/ICCChinaW.2019.8849974
Yunlai Xu, Shushi Gu, Zhihua Yang, Qinyu Zhang
Delay/Disruption Tolerant Network (DTN) is a type of end-to-end networking architecture for long delay and frequent interruption, which provides important applications in many fields, e.g., interstellar network, internet of vehicles and military network. However, as the amount of data and the number of data sources increase, the relay buffer in DTN cannot effectively be scheduled for storing and forwarding data, which lowers the transmission efficiency in DTN relay scenario. In this paper, we use the relay node buffer to forward data of different priorities together via network coding (NC) to improve the utilization rate of the relay node. We first establish a multi-sources sharing one relay network model based on DTN protocol framework. Then we propose three relay forwarding schemes for the multi-source and multi-priority services or applications: 1) priority forwarding scheme; 2) bundle merging scheme; and 3) network coding scheme. Through theoretical analysis and simulation experiments, we prove that the supplement of NC can improve the data forward efficiency of relay node, enhance the delivery rate and reduce the transmission delay of the DTN relay communication system.
{"title":"Relay Buffer Assisted DTN Bundle Protocol Design via Network Coding","authors":"Yunlai Xu, Shushi Gu, Zhihua Yang, Qinyu Zhang","doi":"10.1109/ICCChinaW.2019.8849974","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2019.8849974","url":null,"abstract":"Delay/Disruption Tolerant Network (DTN) is a type of end-to-end networking architecture for long delay and frequent interruption, which provides important applications in many fields, e.g., interstellar network, internet of vehicles and military network. However, as the amount of data and the number of data sources increase, the relay buffer in DTN cannot effectively be scheduled for storing and forwarding data, which lowers the transmission efficiency in DTN relay scenario. In this paper, we use the relay node buffer to forward data of different priorities together via network coding (NC) to improve the utilization rate of the relay node. We first establish a multi-sources sharing one relay network model based on DTN protocol framework. Then we propose three relay forwarding schemes for the multi-source and multi-priority services or applications: 1) priority forwarding scheme; 2) bundle merging scheme; and 3) network coding scheme. Through theoretical analysis and simulation experiments, we prove that the supplement of NC can improve the data forward efficiency of relay node, enhance the delivery rate and reduce the transmission delay of the DTN relay communication system.","PeriodicalId":252172,"journal":{"name":"2019 IEEE/CIC International Conference on Communications Workshops in China (ICCC Workshops)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131392983","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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