2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)最新文献_第8页

Coverage and Capacity Analysis of LTE-M and NB-IoT in a Rural Area LTE-M和NB-IoT在农村地区的覆盖和容量分析

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7880946

Mads Lauridsen, I. Kovács, P. Mogensen, Mads Sørensen, Steffen Holst

引用次数: 154

Area-Efficient Fault-Tolerant Design for Low-Density Parity-Check Decoders 低密度奇偶校验译码器的区域高效容错设计

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7880909

Bohua Li, Yukui Pei, N. Ge

{"title":"Area-Efficient Fault-Tolerant Design for Low-Density Parity-Check Decoders","authors":"Bohua Li, Yukui Pei, N. Ge","doi":"10.1109/VTCFall.2016.7880909","DOIUrl":"https://doi.org/10.1109/VTCFall.2016.7880909","url":null,"abstract":"As technology moves into nano-realm, large area of the chip is especially vulnerable to single event upset (SEU) in space applications. In this paper, low cost fault-tolerant schemes are presented for the key modules of Low-Density Parity-Check (LDPC) code decoder to save logic resources. For counters, a fault-tolerant scheme based on m-sequence and Hamming coding is proposed, whereby the soft errors generated by SEUs can be located and corrected by a simple Hamming decoder. For RAM contents, we first propose a layered pipelined architecture absorbing LLR RAM into V2C RAM to reduce memory bits, which will lower the impact of SEUs. Then, a RAM hardening scheme is proposed, which only requires to detect soft errors by parity check, while the error correction is accomplished by decoder's own iterative decoding capability that has not been exploited sufficiently. Simulation results show that the proposed fault-tolerant counter could totally avoid SEUs and saves 42% of cell area compared with TMR method and the layered pipelined architecture saves 42% and 12% of memory bits compared with [4] and [15]. In addition, the hardened RAM cells will not cause extra bit errors when a soft error happens under the environments of high signal-to-noise ratio (SNR). The cost is only one parity bit for each RAM content, which is much less than conventional hardening schemes.","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"34 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74630428","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}

引用次数: 4

BaLAnce: Battery Lifetime-Aware LTE Switching-Off Strategy in Green Network Infrastructures 平衡:绿色网络基础设施中电池寿命感知的LTE关闭策略

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7880917

Christoph Ide, Oleg Belov, Dennis Kaulbars, C. Wietfeld

{"title":"BaLAnce: Battery Lifetime-Aware LTE Switching-Off Strategy in Green Network Infrastructures","authors":"Christoph Ide, Oleg Belov, Dennis Kaulbars, C. Wietfeld","doi":"10.1109/VTCFall.2016.7880917","DOIUrl":"https://doi.org/10.1109/VTCFall.2016.7880917","url":null,"abstract":"The load-aware operation of network infrastructure is a well established green networking concept to improve the energy-efficiency of wireless communication networks. But while it has been shown that switching-off base stations in times of low traffic leads to significant savings of energy, the interdependency of such infrastructure-oriented measures on the power consumption of user equipments has not been addressed in detail so far. This paper therefore quantizes the negative impact of switching-off strategies for base stations on the battery lifetime of Long Term Evolution (LTE) devices. Therefore, the Context- Aware Power Consumption Model for LTE devices (CoPoMo) that enables an accurate quantification of the energy efficiency of devices under different network deployments, is leveraged. In order to enable a trade-off between energy savings in the infrastructure and battery lifetimes of devices on the user side, we propose a Battery-Lifetime-Aware switching-off Strategy (BaLAnce) for base stations. The results of a simulation study with a reference LTE network scenario show, that a significantly better energy trade-off can be achieved by BaLAnce.","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"48 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72595909","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}

引用次数: 1

On the Number and 3D Placement of Drone Base Stations in Wireless Cellular Networks 无线蜂窝网络中无人机基站的数量和三维布局研究

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7881122

E. Kalantari, H. Yanikomeroglu, A. Yongaçoğlu

引用次数: 338

Joint Clustering and Precoding for a Downlink Non-Orthogonal Multiple Access System with Multiple Antennas 多天线下行非正交多址系统的联合聚类和预编码

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7881056

Chin-Liang Wang, Jyun-Yu Chen, Siu-Hang Lam, P. Xiao

{"title":"Joint Clustering and Precoding for a Downlink Non-Orthogonal Multiple Access System with Multiple Antennas","authors":"Chin-Liang Wang, Jyun-Yu Chen, Siu-Hang Lam, P. Xiao","doi":"10.1109/VTCFall.2016.7881056","DOIUrl":"https://doi.org/10.1109/VTCFall.2016.7881056","url":null,"abstract":"In this paper, we first consider a downlink multiple- input multiple-output non-orthogonal multiple access (MIMO-NOMA) system with a base station and four users, where the users are equally divided into two clusters and inter-cluster interference is induced in transmission. Then we propose a joint clustering and precoding algorithm for the system such that not only the inter-cluster interference can be effectively eliminated but also the sum capacity can be enhanced. Specifically, a set of precoder pairs (one pair having two precoders for the two clusters) are constructed based on the eigenspaces of channel matrices, and one of them is selected to maximize the sum capacity. The proposed joint algorithm involves a high-complexity issue due to the need of exhaustive search for the best precoder pair. To reduce the search complexity, we explore the channel gain of each user and construct a reduced-size precoding set for selection. Combined with orthogonal frequency division multiplexing, the proposed four-user scheme is further extended to the general multiuser case, where every four users share a subcarrier for MIMO-NOMA transmission. Simulation results show that the proposed MIMO-NOMA scheme can provide more system capacity than a MIMO orthogonal multiple access approach.","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"34 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74005056","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}

引用次数: 2

Hybrid Digital-Analog Communication of a Bivariate Gaussian Source over a Fading MAC 衰落MAC上二元高斯源的混合数模通信

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7881036

C. Illangakoon, P. Yahampath

引用次数: 0

Multichannel Immediate Multiple Access for Dedicated Short-Range Communications: IEEE 802.11p-Compatible Physical Layer 专用短距离通信的多通道即时多址:IEEE 802.11p兼容物理层

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7881099

Mingming Cai, J. N. Laneman

{"title":"Multichannel Immediate Multiple Access for Dedicated Short-Range Communications: IEEE 802.11p-Compatible Physical Layer","authors":"Mingming Cai, J. N. Laneman","doi":"10.1109/VTCFall.2016.7881099","DOIUrl":"https://doi.org/10.1109/VTCFall.2016.7881099","url":null,"abstract":"This paper describes two concepts for Multichannel Immediate Multiple Access (MIMA) radio architectures for Dedicated Short-Range Communications (DSRC). Based upon an orthogonal frequency-division multiplexing (OFDM) physical layer, MIMA allows receivers to listen to all seven channels allotted for DSRC in the 5.9 GHz band and allows transmitters to send messages in any subset of the seven DSRC channels. The multichannel accessibility of MIMA further provides higher data rate for various applications, such as In-Vehicle Infotainment. The MIMA architectures are also compatible with the IEEE 802.11p standard, that is, they can coexist with 802.11p transceivers. One MIMA concept can increase spectrum utilization by up to 21.4% beyond carrier aggregation alone by utilizing guard bands in between aggregated DSRC channels. Another MIMA concept is to separate synchronization from demodulation and decoding, allowing a receiver to operate synchronizers for multiple channels in parallel but demodulating and decoding only those channels that are active, and thereby significantly reduce the FPGA or digital chip resources in the receiver. A prototype of the MIMA architecture has been implemented using an advanced software defined radio (SDR) platform. Preliminary results from the prototypes demonstrate the multichannel accessibility of the physical layer.","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"21 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84947410","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}

引用次数: 2

Robust Spectrum Sharing under Channel Uncertainty for Cognitive Radio Networks 信道不确定性下认知无线电网络的鲁棒频谱共享

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7881206

Le Wang, Jin Chen, Guochun Ren, Guoru Ding, Zhen Xue, Haichao Wang

{"title":"Robust Spectrum Sharing under Channel Uncertainty for Cognitive Radio Networks","authors":"Le Wang, Jin Chen, Guochun Ren, Guoru Ding, Zhen Xue, Haichao Wang","doi":"10.1109/VTCFall.2016.7881206","DOIUrl":"https://doi.org/10.1109/VTCFall.2016.7881206","url":null,"abstract":"In this paper, we study robust spectrum sharing under channel uncertainty in a cognitive radio network (CRN), where a great number of secondary users (SUs) and a primary user (PU) coexist with each other sharing the same frequency spectrum. Considering the practical challenge that the channel gain between SU transmitters (SU-Txs) and PU receiver (PU-Rx) is typically uncertain, a probabilistic interference constraint is introduced in this paper. Although the interference constraint can be transformed into a linear outage probability formation, the optimization problem is a non-convex and non-linear programming (NCNLP). To circumvent the difficulty of directly solving the problem, we convert the original objective function and the outage probability constraint into suitable forms by the mathematical transformation and apply the convex optimization theory to solving this intractable problem. Moreover, we employ the interior point method to design an efficient algorithm and acquire a near-optimal solution. Finally, numerical simulations are carried out under various parameter configurations, which demonstrate that the proposed robust spectrum sharing algorithm can achieve higher performance than the state-of-the-art schemes.","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"44 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85423943","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}

引用次数: 1

Enhanced Intersection-Based Perimeter Geo-Routing in Urban Vehicular Ad-Hoc Networks 城市车辆自组织网络中基于交叉口的增强周界地理路由

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7880999

Mehdi Tavakoli Garrosi

{"title":"Enhanced Intersection-Based Perimeter Geo-Routing in Urban Vehicular Ad-Hoc Networks","authors":"Mehdi Tavakoli Garrosi","doi":"10.1109/VTCFall.2016.7880999","DOIUrl":"https://doi.org/10.1109/VTCFall.2016.7880999","url":null,"abstract":"The ongoing research in the field of vehicular communication towards cooperative Intelligent Transport Systems (ITS) tries to tackle the ever increasing road traffic problems. In urban Vehicular Ad-hoc Networks (VANET), network disconnections happen frequently as a result of fast movement of vehicles, road layout constraints, and shadowing effects caused by buildings. Therefore, one of the key factors to successfully establish VANETs, is a routing protocol, which can fulfill the Quality-of-Service (QoS) required by ITS's promised applications, e.g., traffic management, road safety and comfort. Because of the simplicity, efficiency and scalability of geo-routing protocols, they suit for VANETs. The family of greedy perimeter geo-routing protocols became a considerable solution for VANETs. Although enhancements to GPSR (Greedy Perimeter Stateless Routing) has been proposed, still there are shortcomings, which needs to be eliminated, to have geo-routing at its best. In this paper, EIPG (Enhanced Intersection-based Perimeter Geo-routing) is proposed for urban VANETs. EIPG inherits the restricted greedy forwarding of GpsrJ+ but employs a new intersection-based perimeter forwarding in order to avoid the problem of Wrong Street Estimation (WSE). Based on our profound simulation study, EIPG shows a significant improvement in comparison to GpsrJ+, in terms of Packet Delivery Ratio (PDR), end-to-end delay, and network overhead. EIPG also requires only the information of single-hops, i.e., the direct neighbor vehicles, to avoid the unnecessary overhead caused by the extra information included in the beacon messages of GpsrJ+ and be more compatible with the standard Cooperative Awareness Messages (CAM).","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"4 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85424263","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}

引用次数: 5

Multi-Band Cooperative Spectrum Sensing in RF Powered Cognitive Radio Networks 射频供电认知无线网络中的多频带协同频谱感知

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) Pub Date : 2016-09-01 DOI: 10.1109/VTCFall.2016.7881096

M. Basharat, W. Ejaz, K. Raahemifar, A. Anpalagan

引用次数: 3