Pub Date : 2014-05-18DOI: 10.1109/VTCSpring.2014.7023039
Stephan Haendeler, A. Lewandowski, C. Wietfeld
This paper describes a solution for the problem of wrong way driving on motorways by proposing a new Passive Vehicle Detection (PVD) technology, which is able to detect the driving direction based on roadside radio sensors. The new sensor technology is combined with local and wide-area warning functionality and generates real-time telematics information to increase the safety of all road users. The major benefit of the proposed system is that the vehicle itself must not be equipped with additional hardware. Based on simulation results, we developed a prototype of the Wireless Detection and Warning System (WDWS) to perform experiments for validation. Afterwards, the system was deployed in an extensive field trial at a German motorway in Bochum. The paper describes the architecture, the algorithm design and the results of the performance evaluation. Another benefit is the enormous time gain by a factor of 33 in the generation and transmission of an automated warning to endangered road users.
{"title":"Passive Detection of Wrong Way Drivers on Motorways Based on Low Power Wireless Communications","authors":"Stephan Haendeler, A. Lewandowski, C. Wietfeld","doi":"10.1109/VTCSpring.2014.7023039","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7023039","url":null,"abstract":"This paper describes a solution for the problem of wrong way driving on motorways by proposing a new Passive Vehicle Detection (PVD) technology, which is able to detect the driving direction based on roadside radio sensors. The new sensor technology is combined with local and wide-area warning functionality and generates real-time telematics information to increase the safety of all road users. The major benefit of the proposed system is that the vehicle itself must not be equipped with additional hardware. Based on simulation results, we developed a prototype of the Wireless Detection and Warning System (WDWS) to perform experiments for validation. Afterwards, the system was deployed in an extensive field trial at a German motorway in Bochum. The paper describes the architecture, the algorithm design and the results of the performance evaluation. Another benefit is the enormous time gain by a factor of 33 in the generation and transmission of an automated warning to endangered road users.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114984719","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7022964
B. M. Elhalawany, M. Elsabrouty, O. Muta, A. A. El-Rahman, H. Furukawa
The multiple access broadcast (MABC) is an effective two phases transmission (2P) ANC protocol for the half-duplex (HD) communication mode. However, MABC does not make use of channel gain of the direct link (DL) no matter how strong it is. On the other hand, the time division broadcast (TDBC) is known as a three phases transmission (3P) protocol which enables transceivers to utilize DL and thus offers the possibility to achieve higher performance compared with the MABC at the expense of a reduced spectral efficiency due to the one extra transmission phase. In this paper, we investigate a joint single relay selection and power allocation schemes for energy-efficient wireless communication systems with analog network coding (ANC) for TDBC, where two-way relay channel with two end nodes and N parallel relay nodes is considered under an assumption of perfect channel-state information (CSI). Our objective is to minimize the total system transmit power consumption under quality-of-service (QoS) constraints for TDBC protocol with joint single relay selection and nodes power allocation. In addition, a zero-forcing based relay signal combining technique that combines the signals received at the 1st and 2nd transmission phases, also known as zero-forcing relay power allocation (ZF-RPA), is also investigated. Numerical simulation shows that the traditional VG-RPA is more energy-efficient than the ZF-RPA scheme for TDBC in cases with and without utilizing DL.
{"title":"Joint Energy-Efficient Single Relay Selection and Power Allocation for Analog Network Coding with Three Transmission Phases","authors":"B. M. Elhalawany, M. Elsabrouty, O. Muta, A. A. El-Rahman, H. Furukawa","doi":"10.1109/VTCSpring.2014.7022964","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7022964","url":null,"abstract":"The multiple access broadcast (MABC) is an effective two phases transmission (2P) ANC protocol for the half-duplex (HD) communication mode. However, MABC does not make use of channel gain of the direct link (DL) no matter how strong it is. On the other hand, the time division broadcast (TDBC) is known as a three phases transmission (3P) protocol which enables transceivers to utilize DL and thus offers the possibility to achieve higher performance compared with the MABC at the expense of a reduced spectral efficiency due to the one extra transmission phase. In this paper, we investigate a joint single relay selection and power allocation schemes for energy-efficient wireless communication systems with analog network coding (ANC) for TDBC, where two-way relay channel with two end nodes and N parallel relay nodes is considered under an assumption of perfect channel-state information (CSI). Our objective is to minimize the total system transmit power consumption under quality-of-service (QoS) constraints for TDBC protocol with joint single relay selection and nodes power allocation. In addition, a zero-forcing based relay signal combining technique that combines the signals received at the 1st and 2nd transmission phases, also known as zero-forcing relay power allocation (ZF-RPA), is also investigated. Numerical simulation shows that the traditional VG-RPA is more energy-efficient than the ZF-RPA scheme for TDBC in cases with and without utilizing DL.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"326 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115225038","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7022906
Seonghwa Yun, S. Jeon, J. Choi, A. Park
The growing mobile data demand has led to the investigation of millimeter-wave (mm-wave) band which makes the communication systems can achieve multi-gigabit data rate. Due to the high attenuation phenomenon of mm-wave, however, the mm-wave system contains the ``dead zones'' where users cannot receive mobile data. To cover dead zones, deployment of relay stations becomes an important issue for constructing mm-wave systems. In addition, according to growing interests on green communication, energy efficiency of the communication system becomes another important issue. In spite of that importance, there is no study about energy efficiency of relaying in the mm-wave system. In this paper, we model the mm-wave systems considering relay operation. And then, we analyze energy efficiency of relay operation compared to direct transmission of the systems. Finally, the numerical results show that the relay operation makes better energy efficiency than direct transmission in certain criteria.
{"title":"Energy Efficiency of Relay Operation in Millimeter-Wave Mobile Broadband Systems","authors":"Seonghwa Yun, S. Jeon, J. Choi, A. Park","doi":"10.1109/VTCSpring.2014.7022906","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7022906","url":null,"abstract":"The growing mobile data demand has led to the investigation of millimeter-wave (mm-wave) band which makes the communication systems can achieve multi-gigabit data rate. Due to the high attenuation phenomenon of mm-wave, however, the mm-wave system contains the ``dead zones'' where users cannot receive mobile data. To cover dead zones, deployment of relay stations becomes an important issue for constructing mm-wave systems. In addition, according to growing interests on green communication, energy efficiency of the communication system becomes another important issue. In spite of that importance, there is no study about energy efficiency of relaying in the mm-wave system. In this paper, we model the mm-wave systems considering relay operation. And then, we analyze energy efficiency of relay operation compared to direct transmission of the systems. Finally, the numerical results show that the relay operation makes better energy efficiency than direct transmission in certain criteria.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124367463","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7023150
Weitao Ge, Qing Huang, Su Yi, G. Wang
In recent years, femtocells, which could enhance the indoor coverage, have attracted widely attention. The interference among femtocells is not ignorable when the deployment is extremely dense. In this paper, a novel component carrier selection scheme, which includes two algorithms, i.e. BCCS (Basic Component Carrier Selection) algorithm and ECCS (Enhance Component Carrier Selection) algorithm, is proposed in the femtocell networks with carrier aggregation. A solution is also given when multiple HeNBs choose the same component carrier which would cause severe interference between femtocells. Finally, simulation results demonstrate that the proposed scheme could not only improve the SINR of UE but also increase the throughput of femtocells.
{"title":"A Novel Component Carrier Selection and Collision Avoidance Scheme in Femtocell Networks","authors":"Weitao Ge, Qing Huang, Su Yi, G. Wang","doi":"10.1109/VTCSpring.2014.7023150","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7023150","url":null,"abstract":"In recent years, femtocells, which could enhance the indoor coverage, have attracted widely attention. The interference among femtocells is not ignorable when the deployment is extremely dense. In this paper, a novel component carrier selection scheme, which includes two algorithms, i.e. BCCS (Basic Component Carrier Selection) algorithm and ECCS (Enhance Component Carrier Selection) algorithm, is proposed in the femtocell networks with carrier aggregation. A solution is also given when multiple HeNBs choose the same component carrier which would cause severe interference between femtocells. Finally, simulation results demonstrate that the proposed scheme could not only improve the SINR of UE but also increase the throughput of femtocells.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117225313","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7023168
Toni Levanen, J. Talvitie, Juho Pirskanen, M. Valkama
In this paper we introduce a new flexible time division duplexing based radio interface for future 5G small cell communications. We describe the benefits of the new design to achieve high energy efficiency, high spectral efficiency and low latency at the same time. We also compare our reference design against LTE-A assuming rank 8 DL SU-MIMO transmission and show that we our design can achieve more than 29% lower total overhead and up to 90% lower round trip time.
{"title":"New Spectrally and Energy Efficient Flexible TDD Based Air Interface for 5G Small Cells","authors":"Toni Levanen, J. Talvitie, Juho Pirskanen, M. Valkama","doi":"10.1109/VTCSpring.2014.7023168","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7023168","url":null,"abstract":"In this paper we introduce a new flexible time division duplexing based radio interface for future 5G small cell communications. We describe the benefits of the new design to achieve high energy efficiency, high spectral efficiency and low latency at the same time. We also compare our reference design against LTE-A assuming rank 8 DL SU-MIMO transmission and show that we our design can achieve more than 29% lower total overhead and up to 90% lower round trip time.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117227363","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7022921
N. Goddemeier, S. Rohde, C. Wietfeld
A key challenge for civil usage of UAVs is reliable and continuous communication between an operator and the UAVs. In previous works we have developed and investigated communication-aware mobility strategies which consider operational goals but also communication performance. In this work we present an experimental performance evaluation of our Role-Based Connectivity Management using a multi-UAV testbed. Results show that our approach allows the dynamic use of Relay-UAVs to extend the operational range and enables reliable communication.
{"title":"Experimental Performance Evaluation of Role-Based Connectivity Management for Cooperating UAVs","authors":"N. Goddemeier, S. Rohde, C. Wietfeld","doi":"10.1109/VTCSpring.2014.7022921","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7022921","url":null,"abstract":"A key challenge for civil usage of UAVs is reliable and continuous communication between an operator and the UAVs. In previous works we have developed and investigated communication-aware mobility strategies which consider operational goals but also communication performance. In this work we present an experimental performance evaluation of our Role-Based Connectivity Management using a multi-UAV testbed. Results show that our approach allows the dynamic use of Relay-UAVs to extend the operational range and enables reliable communication.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124993957","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7023169
Mei-Ju Shih, Yuan-Chi Pang, Guan-Yu Lin, Hung-Yu Wei, R. Vannithamby
To explore the energy efficient Machine-Type Communication (MTC) for 5G cellular systems, we developed a simulation platform to investigate the complete uplink procedures of energy-harvesting MTC devices in LTE-A (Long Term Evolution Advanced) system. Though the 3rd Generation Partnership (3GPP) has worked on LTE-A cellular standards in support of MTC transmission, the standards have not taken energy-harvesting MTC devices into their scope. Energy-harvesting technology can be the candidate to support the MTC features by allowing the devices to harvest ambient energy and support their own power usage without manual upgrade. The proposed Energy-Aware LTE-A scheme, serving as power control and admission control, prevents the devices from building the network connections greedily but ending up with energy shortage and packet loss. This scheme not only can reduce the contention level of control channels but also can decrease energy wastage on network entry procedures, thereby improving the overall energy efficiency.
{"title":"Performance Evaluation for Energy-Harvesting Machine-Type Communication in LTE-A System","authors":"Mei-Ju Shih, Yuan-Chi Pang, Guan-Yu Lin, Hung-Yu Wei, R. Vannithamby","doi":"10.1109/VTCSpring.2014.7023169","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7023169","url":null,"abstract":"To explore the energy efficient Machine-Type Communication (MTC) for 5G cellular systems, we developed a simulation platform to investigate the complete uplink procedures of energy-harvesting MTC devices in LTE-A (Long Term Evolution Advanced) system. Though the 3rd Generation Partnership (3GPP) has worked on LTE-A cellular standards in support of MTC transmission, the standards have not taken energy-harvesting MTC devices into their scope. Energy-harvesting technology can be the candidate to support the MTC features by allowing the devices to harvest ambient energy and support their own power usage without manual upgrade. The proposed Energy-Aware LTE-A scheme, serving as power control and admission control, prevents the devices from building the network connections greedily but ending up with energy shortage and packet loss. This scheme not only can reduce the contention level of control channels but also can decrease energy wastage on network entry procedures, thereby improving the overall energy efficiency.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123553015","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7023127
Hong Cai, Tiejun Lv, Hui Gao, Anzhong Hu
Precise ultra-wideband (UWB) ranging requires accurate estimation of time of arrival (TOA). In this paper,a novel TOA estimation approach using checking window is proposed for energy detection (ED) receivers in dense multipath channels. Unlike the traditional methods that treat the multipath components (MPCs) as interference sources, the proposed scheme exploits the MPCs to consolidate the detection of the first path (FP). By detecting dense threshold-crossing (TC) events over successive energy samples with the checking window, the MPCs are collected, and the false TC events that sparsely distributed in the noise region can be recognized and neglected for the FP detection. As a result, the early false detection is reduced and the leading edge detection is improved. Simulations demonstrate the effectiveness and robustness of the proposed scheme in IEEE 802.15.4a channels.
{"title":"TOA Estimation Using Checking Window for IR-UWB Energy Detection Receivers","authors":"Hong Cai, Tiejun Lv, Hui Gao, Anzhong Hu","doi":"10.1109/VTCSpring.2014.7023127","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7023127","url":null,"abstract":"Precise ultra-wideband (UWB) ranging requires accurate estimation of time of arrival (TOA). In this paper,a novel TOA estimation approach using checking window is proposed for energy detection (ED) receivers in dense multipath channels. Unlike the traditional methods that treat the multipath components (MPCs) as interference sources, the proposed scheme exploits the MPCs to consolidate the detection of the first path (FP). By detecting dense threshold-crossing (TC) events over successive energy samples with the checking window, the MPCs are collected, and the false TC events that sparsely distributed in the noise region can be recognized and neglected for the FP detection. As a result, the early false detection is reduced and the leading edge detection is improved. Simulations demonstrate the effectiveness and robustness of the proposed scheme in IEEE 802.15.4a channels.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116441919","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7022942
Theodoros Mavridis, L. Petrillo, J. Sarrazin, Aziz Benlarbi-Delaï, P. D. Doncker
In the field of 60 GHz high data rate wireless and Body Area Networks communications, fast computation and accurate analytic models are required to predict the budget link. In this paper, an indoor off-body channel model restricted to TE polarization transmitters and receivers is studied numerically. Some channel properties are extracted and compared to the indoor channel to study the impact of the human body on the 60 GHz propagation.
{"title":"Implementation and Study of a Numerical 60 GHz Indoor Off-Body Channel","authors":"Theodoros Mavridis, L. Petrillo, J. Sarrazin, Aziz Benlarbi-Delaï, P. D. Doncker","doi":"10.1109/VTCSpring.2014.7022942","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7022942","url":null,"abstract":"In the field of 60 GHz high data rate wireless and Body Area Networks communications, fast computation and accurate analytic models are required to predict the budget link. In this paper, an indoor off-body channel model restricted to TE polarization transmitters and receivers is studied numerically. Some channel properties are extracted and compared to the indoor channel to study the impact of the human body on the 60 GHz propagation.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122604076","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 : 2014-05-18DOI: 10.1109/VTCSpring.2014.7022779
H. Al-Tous, I. Barhumi
A low complexity algorithm is proposed for joint allocation of power profiles at the source and relay nodes and subcarrier assignment for single user amplify and forward (AF) cooperative communication using orthogonal frequency division multiplexing (OFDM) system. The relay uses AF cooperative relaying to transmit messages on a set of available subcarriers with diversity. The remaining subcarriers are used for direct transmission without diversity. The objective is to allocate the resources to maximize the sum rate subject to individual power constraint on each node. We formulate such a problem as subcarrier based resource allocation that seeks joint optimization of subcarrier assignment and power profiles at the source and relay nodes. The algorithm is based on an ordering of the channel gain's ratio and splitting them into two partitions, then searching for the partition that maximizes the sum rate. Simulation results demonstrate the merit of the proposed algorithm.
{"title":"A Low Complexity Algorithm for Selective AF-OFDM System","authors":"H. Al-Tous, I. Barhumi","doi":"10.1109/VTCSpring.2014.7022779","DOIUrl":"https://doi.org/10.1109/VTCSpring.2014.7022779","url":null,"abstract":"A low complexity algorithm is proposed for joint allocation of power profiles at the source and relay nodes and subcarrier assignment for single user amplify and forward (AF) cooperative communication using orthogonal frequency division multiplexing (OFDM) system. The relay uses AF cooperative relaying to transmit messages on a set of available subcarriers with diversity. The remaining subcarriers are used for direct transmission without diversity. The objective is to allocate the resources to maximize the sum rate subject to individual power constraint on each node. We formulate such a problem as subcarrier based resource allocation that seeks joint optimization of subcarrier assignment and power profiles at the source and relay nodes. The algorithm is based on an ordering of the channel gain's ratio and splitting them into two partitions, then searching for the partition that maximizes the sum rate. Simulation results demonstrate the merit of the proposed algorithm.","PeriodicalId":405517,"journal":{"name":"2014 IEEE 79th Vehicular Technology Conference (VTC Spring)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114519679","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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