Pub Date : 2017-09-01DOI: 10.1109/VTCFall.2017.8288373
A. Goulianos, A. L. Freire, Thomas H. Barratt, E. Mellios, P. Cain, M. Rumney, A. Nix, M. Beach
This paper presents the analysis and characterization of the surface scattering process for both specular and diffused components. The study is focused on the investigation of various building materials each having a different roughness, at a central frequency of 60GHz. Very large signal strength variations in first order scattered components is observed as the user moves over very short distances. This is due to the small-scale fading caused by rough surface scatterers. Furthermore, it is shown that the diffused scattering depends on the material roughness, the angle of incidence and the distance from the surface. Finally, results indicate that reflections from rough materials may suffer from high depolarization, a phenomenon that can potentially be exploited in order to improve the performance of mm-Wave systems using polarization diversity.
{"title":"Measurements and Characterisation of Surface Scattering at 60 GHz","authors":"A. Goulianos, A. L. Freire, Thomas H. Barratt, E. Mellios, P. Cain, M. Rumney, A. Nix, M. Beach","doi":"10.1109/VTCFall.2017.8288373","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8288373","url":null,"abstract":"This paper presents the analysis and characterization of the surface scattering process for both specular and diffused components. The study is focused on the investigation of various building materials each having a different roughness, at a central frequency of 60GHz. Very large signal strength variations in first order scattered components is observed as the user moves over very short distances. This is due to the small-scale fading caused by rough surface scatterers. Furthermore, it is shown that the diffused scattering depends on the material roughness, the angle of incidence and the distance from the surface. Finally, results indicate that reflections from rough materials may suffer from high depolarization, a phenomenon that can potentially be exploited in order to improve the performance of mm-Wave systems using polarization diversity.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134215796","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8288308
Muhammad Awais Khan, S. Sargento, Miguel Luís
Efficient and cost effective data collection from smart city sensors through vehicular networks is crucial for many applications, such as travel comfort, safety and urban sensing. Static and mobile sensors data can be gathered through the vehicles that will be used as data mules and, while moving, they will be able to access road side units (RSUs), and then, send the data to a server in the cloud. Therefore, it is important to research how to use opportunistic vehicular networks to forward data packets through each other in a multi-hop fashion until they reach the destination. This paper proposes a novel data forwarding algorithm for urban vehicular networks taking into consideration the rank of each vehicle, which is based on the probability to reach a road side unit. The proposed forwarding algorithm is evaluated in the mOVERS emulator considering different forwarding decisions, such as, no restriction on broadcasting packets to neighboring On-Board Units (OBUs), restriction on broadcasting by the average rank of neighboring OBUs, and the number of hops between source and destination. Results show that, by restricting the broadcast messages in the proposed algorithm, we are able to reduce the network's overhead, therefore increasing the packet delivery ratio between the sensors and the server.
{"title":"Data Collection from Smart-City Sensors through Large-Scale Urban Vehicular Networks","authors":"Muhammad Awais Khan, S. Sargento, Miguel Luís","doi":"10.1109/VTCFall.2017.8288308","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8288308","url":null,"abstract":"Efficient and cost effective data collection from smart city sensors through vehicular networks is crucial for many applications, such as travel comfort, safety and urban sensing. Static and mobile sensors data can be gathered through the vehicles that will be used as data mules and, while moving, they will be able to access road side units (RSUs), and then, send the data to a server in the cloud. Therefore, it is important to research how to use opportunistic vehicular networks to forward data packets through each other in a multi-hop fashion until they reach the destination. This paper proposes a novel data forwarding algorithm for urban vehicular networks taking into consideration the rank of each vehicle, which is based on the probability to reach a road side unit. The proposed forwarding algorithm is evaluated in the mOVERS emulator considering different forwarding decisions, such as, no restriction on broadcasting packets to neighboring On-Board Units (OBUs), restriction on broadcasting by the average rank of neighboring OBUs, and the number of hops between source and destination. Results show that, by restricting the broadcast messages in the proposed algorithm, we are able to reduce the network's overhead, therefore increasing the packet delivery ratio between the sensors and the server.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134409582","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8287960
Yalei Ji, C. Bockelmann, A. Dekorsy
Compressive Sensing Multi-User Detection (CS-MUD) is a recently developed physical (PHY) layer technique [1] to support Massive Machine Communication (MMC) in the next generation of mobile communication (5G) [2], [3]. CS-MUD has been investigated in joint Medium Access Control (MAC) and PHY layer protocol design [4], [5] but the lack of analytical performance description makes the joint design cumbersome. To expand the joint MAC- and PHY-layer protocol design considering a larger parameter space and to gain insights in the cross-layer optimization, we present a performance abstraction for CS-MUD to avoid extensive numerical simulation. Within this work, we exploit a low-complexity approach to approximate the performance of CS-MUD through the Replica Symmetry in large system analysis [6].
{"title":"Performance Approximation of Compressive Sensing Multi-User Detection via Replica Symmetry","authors":"Yalei Ji, C. Bockelmann, A. Dekorsy","doi":"10.1109/VTCFall.2017.8287960","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8287960","url":null,"abstract":"Compressive Sensing Multi-User Detection (CS-MUD) is a recently developed physical (PHY) layer technique [1] to support Massive Machine Communication (MMC) in the next generation of mobile communication (5G) [2], [3]. CS-MUD has been investigated in joint Medium Access Control (MAC) and PHY layer protocol design [4], [5] but the lack of analytical performance description makes the joint design cumbersome. To expand the joint MAC- and PHY-layer protocol design considering a larger parameter space and to gain insights in the cross-layer optimization, we present a performance abstraction for CS-MUD to avoid extensive numerical simulation. Within this work, we exploit a low-complexity approach to approximate the performance of CS-MUD through the Replica Symmetry in large system analysis [6].","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133973818","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8288164
I. Khoufi, P. Minet, B. Rmili
Time Slotted Channel Hopping (TSCH), specified in the IEEE 802.15.4e amendment, has been designed for industrial automation, process control and equipment monitoring. It uses a slotted medium access on several channels in parallel and supports multihop communications. In this paper, we study how applications with data delivery constraints can be supported by a TSCH network. We first propose a framework based on a multislotframe that allows the coexistence of Data Slotframes and Control Slotframes. We then determine a lower bound on the minimum number of slots required to perform data gathering, taking into account the number of channels, the number of interfaces of the sink, the number of packets generated by each sensor node as well as the number of children of the sink. These feasibility conditions are established for two cases: with spatial reuse and without. We propose a debt-based scheduler that for simple topologies, provides a schedule minimizing the slotframe size. Finally, we consider a network configuration representative of an industrial application and evaluate the performance of the TSCH network in terms of data delivery delay and queue size for each sensor node, using the NS-3 simulator. Simulation results confirm the theory.
{"title":"Scheduling Transmissions with Latency Constraints in an IEEE 802.15.4e TSCH Network","authors":"I. Khoufi, P. Minet, B. Rmili","doi":"10.1109/VTCFall.2017.8288164","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8288164","url":null,"abstract":"Time Slotted Channel Hopping (TSCH), specified in the IEEE 802.15.4e amendment, has been designed for industrial automation, process control and equipment monitoring. It uses a slotted medium access on several channels in parallel and supports multihop communications. In this paper, we study how applications with data delivery constraints can be supported by a TSCH network. We first propose a framework based on a multislotframe that allows the coexistence of Data Slotframes and Control Slotframes. We then determine a lower bound on the minimum number of slots required to perform data gathering, taking into account the number of channels, the number of interfaces of the sink, the number of packets generated by each sensor node as well as the number of children of the sink. These feasibility conditions are established for two cases: with spatial reuse and without. We propose a debt-based scheduler that for simple topologies, provides a schedule minimizing the slotframe size. Finally, we consider a network configuration representative of an industrial application and evaluate the performance of the TSCH network in terms of data delivery delay and queue size for each sensor node, using the NS-3 simulator. Simulation results confirm the theory.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130695465","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8288114
T. A. Zewde, M. C. Gursoy
In this paper, we study the performance of non-orthogonal multiple access (NOMA) scheme in wireless-powered communication networks (WPCN) focusing on the system energy efficiency. We consider multiple energy-harvesting user equipments (UEs) that operate based on harvest-then-transmit protocol. The uplink information transfer is carried out by using power-domain multiplexing, and the receiver decodes each UE's data in such a way that the UE with the best channel gain is decoded without interference. In order to determine optimal resource allocation strategies, we formulate optimization problems considering two models, namely half-duplex operation and asynchronous transmission, based on how downlink and uplink operations are coordinated. In both cases, we have concave-linear fractional problems, and hence Dinkelbach's method can be applied to obtain the globally optimal solutions. Thus, we first derive analytical expressions for the harvesting interval, and then we provide an algorithm to describe the complete procedure. Simulation results are included to justify the theoretical characterizations. In fact, we observe that broadcasting at higher power level is more energy efficient for WPCN with uplink NOMA.
{"title":"NOMA-Based Energy-Efficient Wireless Powered Communications in 5G Systems","authors":"T. A. Zewde, M. C. Gursoy","doi":"10.1109/VTCFall.2017.8288114","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8288114","url":null,"abstract":"In this paper, we study the performance of non-orthogonal multiple access (NOMA) scheme in wireless-powered communication networks (WPCN) focusing on the system energy efficiency. We consider multiple energy-harvesting user equipments (UEs) that operate based on harvest-then-transmit protocol. The uplink information transfer is carried out by using power-domain multiplexing, and the receiver decodes each UE's data in such a way that the UE with the best channel gain is decoded without interference. In order to determine optimal resource allocation strategies, we formulate optimization problems considering two models, namely half-duplex operation and asynchronous transmission, based on how downlink and uplink operations are coordinated. In both cases, we have concave-linear fractional problems, and hence Dinkelbach's method can be applied to obtain the globally optimal solutions. Thus, we first derive analytical expressions for the harvesting interval, and then we provide an algorithm to describe the complete procedure. Simulation results are included to justify the theoretical characterizations. In fact, we observe that broadcasting at higher power level is more energy efficient for WPCN with uplink NOMA.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130767858","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8288088
Jiao Xu, Shaohua Wu, Luyao Xu, Ning Zhang, Qinyu Zhang
We consider downlink WiFi offloading in a heterogeneous network consisting of one LTE base station (BS) and multiple overlaid WiFi access points (AP) to maximize the user satisfaction of the whole system. Two constraints are considered to guarantee the rate promotion of the offloaded users and less impact on WiFi networks. Furthermore, the resource block (RB) reallocation after offloading is also taken into account. In order to solve the combinatorial optimization problem, we first propose the RB allocation algorithm to reallocate the RBs left by offloaded users. Then, we adopt the best response (BR) algorithm based on game-theoretic approach to obtain the optimal offloading user set. Numerical results show that the proposed WiFi- offloading model can significantly improve the user satisfaction of the whole system, and the BR algorithm can converge to the optimal solution same as the exhaustive search algorithm through several iterations.
{"title":"User Satisfaction-Aware WiFi Offloading in Heterogeneous Networks","authors":"Jiao Xu, Shaohua Wu, Luyao Xu, Ning Zhang, Qinyu Zhang","doi":"10.1109/VTCFall.2017.8288088","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8288088","url":null,"abstract":"We consider downlink WiFi offloading in a heterogeneous network consisting of one LTE base station (BS) and multiple overlaid WiFi access points (AP) to maximize the user satisfaction of the whole system. Two constraints are considered to guarantee the rate promotion of the offloaded users and less impact on WiFi networks. Furthermore, the resource block (RB) reallocation after offloading is also taken into account. In order to solve the combinatorial optimization problem, we first propose the RB allocation algorithm to reallocate the RBs left by offloaded users. Then, we adopt the best response (BR) algorithm based on game-theoretic approach to obtain the optimal offloading user set. Numerical results show that the proposed WiFi- offloading model can significantly improve the user satisfaction of the whole system, and the BR algorithm can converge to the optimal solution same as the exhaustive search algorithm through several iterations.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131249815","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8287941
Jean-Christophe Sibel, Cristina Ciochina-Duchesne, F. Hasegawa
Allowing for asynchronous access and very high carrier frequencies, 5G presents a major challenge for OFDM-based waveforms not originally designed to deal with these cases. In this paper, we present the benefits of Static Sequence Assisted DFT-spread OFDM (SS-A DFT-s-OFDM) waveform for 5G networks. Through theoretical arguments and numerical results, we show that SS-A DFT-s-OFDM exhibits good properties to be competitive regarding the out-of-band emissions. SS-A DFT-s-OFDM also offers support for tracking of phase noise which becomes a problem in high frequency. The spectral efficiency is then improved with respect to the conventional DFT-s-OFDM making SS-A DFT-s-OFDM an attractive candidate for 5G.
{"title":"Evaluation of Static Sequence Assisted DFT-Spread-OFDM for 5G Systems","authors":"Jean-Christophe Sibel, Cristina Ciochina-Duchesne, F. Hasegawa","doi":"10.1109/VTCFall.2017.8287941","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8287941","url":null,"abstract":"Allowing for asynchronous access and very high carrier frequencies, 5G presents a major challenge for OFDM-based waveforms not originally designed to deal with these cases. In this paper, we present the benefits of Static Sequence Assisted DFT-spread OFDM (SS-A DFT-s-OFDM) waveform for 5G networks. Through theoretical arguments and numerical results, we show that SS-A DFT-s-OFDM exhibits good properties to be competitive regarding the out-of-band emissions. SS-A DFT-s-OFDM also offers support for tracking of phase noise which becomes a problem in high frequency. The spectral efficiency is then improved with respect to the conventional DFT-s-OFDM making SS-A DFT-s-OFDM an attractive candidate for 5G.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133616393","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8288129
Xiangli Liu, Zan Li, Jianhuan Wang
Energy harvesting gives a promising way to deal with the power constrained problem by harvesting energy from the external environment. In this paper, the multi-hop wireless network is considered where the relays with energy storage equipments are random scattered in several discs. The chosen relay nodes are used to decode-and-forward(DF) the received signals to the next terminal. The other active nodes in the discs harvest energy from the received signal. With the aim to achieve the minimum system outage probability, the close-form expressions are proposed about the optimal disc locations and about the optimal number of hops, respectively.
{"title":"How Many Hops Are Needed in Multi-Hop Energy Harvesting Wireless Networks","authors":"Xiangli Liu, Zan Li, Jianhuan Wang","doi":"10.1109/VTCFall.2017.8288129","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8288129","url":null,"abstract":"Energy harvesting gives a promising way to deal with the power constrained problem by harvesting energy from the external environment. In this paper, the multi-hop wireless network is considered where the relays with energy storage equipments are random scattered in several discs. The chosen relay nodes are used to decode-and-forward(DF) the received signals to the next terminal. The other active nodes in the discs harvest energy from the received signal. With the aim to achieve the minimum system outage probability, the close-form expressions are proposed about the optimal disc locations and about the optimal number of hops, respectively.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133710947","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8287988
Illia Safiulin, Stefan Schwarz, M. Rupp
In this paper, we investigate multicast transmit beamforming for vehicle to everything (V2X) communication employing LTE's multimedia broadcast single-frequency network (MBSFN) capabilities. LTE-MBSFN enables to broadcast/ multicast information in 4G networks, which can be utilized for efficient dissemination of road traffic related information to vehicles on highways/motorways. MBSFN is currently restricted to single antenna transmission within the LTE standard; this paper aims to present performance benefits obtained with the introduction of multiple transmit antennas. We propose an efficient multi-cell multicast beamforming technique that leads to significant SINR improvements, which enhances reliability, reduces transmission latency and facilitates achieving 5G requirements for vehicular communications.
{"title":"Multicast Beamforming Capabilities of LTE MBSFN for V2X Communications","authors":"Illia Safiulin, Stefan Schwarz, M. Rupp","doi":"10.1109/VTCFall.2017.8287988","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8287988","url":null,"abstract":"In this paper, we investigate multicast transmit beamforming for vehicle to everything (V2X) communication employing LTE's multimedia broadcast single-frequency network (MBSFN) capabilities. LTE-MBSFN enables to broadcast/ multicast information in 4G networks, which can be utilized for efficient dissemination of road traffic related information to vehicles on highways/motorways. MBSFN is currently restricted to single antenna transmission within the LTE standard; this paper aims to present performance benefits obtained with the introduction of multiple transmit antennas. We propose an efficient multi-cell multicast beamforming technique that leads to significant SINR improvements, which enhances reliability, reduces transmission latency and facilitates achieving 5G requirements for vehicular communications.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128903149","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 : 2017-09-01DOI: 10.1109/VTCFall.2017.8287938
Kun Chen-Hu, Juan Carlos Estrada-Jiménez, M. J. F. García, A. G. Armada
Wireless broadband communication systems are always requiring higher data rates. In order to achieve this goal, we should provide advanced schemes which are capable of improving the spectral efficiency and reusing, in a better way, the available radio spectrum resources. Filter Bank Multi-Carrier Offset Quadrature Amplitude Modulation (FBMC-OQAM) combined with Superimposed Training (ST) is a promising technique with a very high spectral efficiency. This improvement is due to the low out-of-band emissions of FBMC-OQAM, because it uses a well-designed prototype filter, and the lack of dedicated pilot tones owing to ST scheme. However, this combination is not straightforward due to the appearance of the self-interference at receiver side in FBMC-OQAM. In this paper, we provide a novel channel estimation which is capable of dealing with this self-interference in the context of combining these two techniques.
{"title":"Superimposed Training for Channel Estimation in FBMC-OQAM","authors":"Kun Chen-Hu, Juan Carlos Estrada-Jiménez, M. J. F. García, A. G. Armada","doi":"10.1109/VTCFall.2017.8287938","DOIUrl":"https://doi.org/10.1109/VTCFall.2017.8287938","url":null,"abstract":"Wireless broadband communication systems are always requiring higher data rates. In order to achieve this goal, we should provide advanced schemes which are capable of improving the spectral efficiency and reusing, in a better way, the available radio spectrum resources. Filter Bank Multi-Carrier Offset Quadrature Amplitude Modulation (FBMC-OQAM) combined with Superimposed Training (ST) is a promising technique with a very high spectral efficiency. This improvement is due to the low out-of-band emissions of FBMC-OQAM, because it uses a well-designed prototype filter, and the lack of dedicated pilot tones owing to ST scheme. However, this combination is not straightforward due to the appearance of the self-interference at receiver side in FBMC-OQAM. In this paper, we provide a novel channel estimation which is capable of dealing with this self-interference in the context of combining these two techniques.","PeriodicalId":375803,"journal":{"name":"2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127860977","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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