2017 IEEE International Conference on Communications Workshops (ICC Workshops)最新文献

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Energy efficiency and spectral-efficiency tradeoff in downlink NOMA systems 下行NOMA系统的能源效率和频谱效率权衡
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962665
Qiang Liu, Fangqing Tan, Tiejun Lv, Hui Gao
{"title":"Energy efficiency and spectral-efficiency tradeoff in downlink NOMA systems","authors":"Qiang Liu, Fangqing Tan, Tiejun Lv, Hui Gao","doi":"10.1109/ICCW.2017.7962665","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962665","url":null,"abstract":"Non-orthogonal multiple access (NOMA) has been investigated recently as a candidate radio access technology for the fifth generation (5G) mobile communication due to its high spectral efficiency (SE). Green radio (GR) which focuses on energy efficiency (EE) is becoming an inevitable trend. In this paper, we study the tradeoff between EE and SE in downlink NOMA systems. The tradeoff problem is formulated as an optimization problem in which the basic idea is to maximize EE under a satisfying minimum SE requirement. It is proved that the system EE is a strictly quasi-concave function of transmission power. By formulating the optimization problem as a bilayer optimization problem, the optimal solution to the optimization problem is obtained, including optimal power allocation coefficients among multiplexed users and optimal transmission power value. Simulation results are provided to further confirm our theoretical findings and the effectiveness of our proposed power allocation scheme for achieving a flexible tradeoff between EE and SE.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"59 1","pages":"247-252"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88011217","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: 17
Hard switching in hybrid FSO/RF link: Investigating data rate and link availability FSO/RF混合链路中的硬交换:研究数据速率和链路可用性
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962701
M. M. Abadi, Zabih Ghassemlooy, S. Zvánovec, M. Bhatnagar, Yongle Wu
{"title":"Hard switching in hybrid FSO/RF link: Investigating data rate and link availability","authors":"M. M. Abadi, Zabih Ghassemlooy, S. Zvánovec, M. Bhatnagar, Yongle Wu","doi":"10.1109/ICCW.2017.7962701","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962701","url":null,"abstract":"This paper investigates the performance dependence of a hybrid free space optical (FSO)/radio frequency (RF) communication system on the data rate, link distance and link availability. In existing hybrid FSO/RF systems with hard switching, an algorithm is used to switch between FSO and RF and vice versa based on the feedback of the channel state information. In particular, two methods based on time hysteresis (TH) and power hysteresis (PH) are widely used in hard switching protocols. Although switching parameters including the time and power thresholds have been studied, the effect of link parameters has not been investigated in the literature. In this paper, we analyse the performance of a hybrid FSO/RF system under realistic channel conditions for both TH and PH switching schemes. By means of analysis and simulation, we show that increasing the data rate of individual FSO or RF link does not necessarily result in higher data rate and improved link availability in a hybrid FSO/RF system.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"78 1","pages":"463-468"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83036785","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: 23
Satellite Gateway Diversity in SDN/NFV-enabled satellite ground segment systems 支持SDN/ nfv的卫星地面段系统中的卫星网关分集
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962770
T. Ahmed, R. Ferrús, Riccardo Fedrizzi, O. Sallent, N. Kuhn, E. Dubois, P. Gelard
{"title":"Satellite Gateway Diversity in SDN/NFV-enabled satellite ground segment systems","authors":"T. Ahmed, R. Ferrús, Riccardo Fedrizzi, O. Sallent, N. Kuhn, E. Dubois, P. Gelard","doi":"10.1109/ICCW.2017.7962770","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962770","url":null,"abstract":"This paper explores how to use Software Defined Networking (SDN) and Network Functions Virtualization (NFV) as two emerging technologies to support Satellite Gateway Diversity (GWD) solution in the forward link to provide next generation satellite system with higher capacity enhancement, failover and resiliency management. In this context, the gateway handover along with efficient traffic steering techniques are used to cope with the cases where gateway feeder links experience outage due to meteorological conditions or gateway failure. The handover typically implies that additional traffic is addressed towards another satellite gateway to handle the capacity reduction. Toward this objective, we propose an architecture framework to support GWD using SDN/NFV-enabled satellite ground segment and we evaluate our solution on a proof of concept experimental testbed based on OpenSAND emulated satellite network. The results show that our proposal can provide reasonably flexibility to handle failover and resiliency.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"1 1","pages":"882-887"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82256145","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: 15
Dynamic energy savings in Cloud-RAN: An experimental assessment and implementation Cloud-RAN中的动态节能:实验性评估与实现
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962755
Christian Blümm, Yi Zhang, Pedro Alvarez, M. Ruffini, L. Dasilva
{"title":"Dynamic energy savings in Cloud-RAN: An experimental assessment and implementation","authors":"Christian Blümm, Yi Zhang, Pedro Alvarez, M. Ruffini, L. Dasilva","doi":"10.1109/ICCW.2017.7962755","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962755","url":null,"abstract":"Cloud Radio Access Network (C-RAN) is one of the most promising network architectures for next-generation mobile communication. Integrating multiple Base Band Units (BBUs) for signal processing in centralized BBU pools provides the opportunity to manage the utilization of processing resources more flexibly and in a more energy-efficient way. This paper demonstrates two approaches for dynamic energy saving in heterogeneous C-RAN networks by switching BBUs from sleep mode to operational mode, depending on changes in data traffic demand. To wake up BBUs, Wake-on-LAN (WoL) packets are sent either by the Remote Radio Head (RRH) in the first approach or by the controller in a BBU pool in the second approach. We implement and compare, in terms of wake-up latency, experimental prototypes using Software Defined Radio (SDR) for both approaches. Aiming at compliance to current LTE standards, the design and implementation of these prototypes has the potential to be applied to a larger scale C-RAN architecture in next-generation commercial mobile networks, including, but not limited to, 5G networks.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"81 1","pages":"791-796"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76396480","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: 6
Joint optimization of path selection and link scheduling for Millimeter Wave transport networks 毫米波传输网络路径选择与链路调度的联合优化
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962643
Diego Huerfano, I. Demirkol, P. Legg
{"title":"Joint optimization of path selection and link scheduling for Millimeter Wave transport networks","authors":"Diego Huerfano, I. Demirkol, P. Legg","doi":"10.1109/ICCW.2017.7962643","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962643","url":null,"abstract":"In future mobile networks, the wireless transport networks are expected to carry traffic flows with different throughput and delay requirements due to the introduction of Cloud-RAN (C-RAN) and different functional splits that can be used, e.g., as defined by Next Generation Fronthaul Interface (NGFI). A promising wireless technology to support the high throughput requirements of C-RAN splits is Millimeter Wave (mmWave) band technologies standardized by IEEE 802.11ad amendment. Our target here is to derive the mathematical formulation of the path selection and link scheduling problem for mmWave transport networks, where the backhaul and fronthaul flows will co-exist, by defining the constraints brought by different functional splits and the IEEE 802.11ad standard. We present two objective functions that can be used for this problem: load balancing and minimization of the use of air time. We implemented the derived formulations in an Mixed-Integer Linear Programming (MILP) solver and evaluated realistic scenarios of wireless fronthaul/backhaul networks assessing the splits defined by NGFI for LTE.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"73 1","pages":"115-120"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78927754","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: 7
Constellation design for cascaded MPSK-CSK systems 级联MPSK-CSK系统的星座设计
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962627
A. Ndjiongue, H. Ferreira, T. Ngatched
{"title":"Constellation design for cascaded MPSK-CSK systems","authors":"A. Ndjiongue, H. Ferreira, T. Ngatched","doi":"10.1109/ICCW.2017.7962627","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962627","url":null,"abstract":"This paper proposes a constellation design for color shift keying (CSK) based on phase shift keying (PSK) conversion, to be used in cascaded power line communications (PLC) and visible light communications (VLC) systems integration. We optimize the design of MPSK-CSK constellations and analyze the performance of MPSK-CSK systems based on the optimized Euclidean distance calculated on the red-green-blue (RGB) color space.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"12 1","pages":"17-22"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81730955","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: 3
Network Coding scheme behavior in a Vehicle-to-Vehicle safety message dissemination 车对车安全信息传播中的网络编码方案行为
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962697
Imen Achour, T. Bejaoui, A. Busson, S. Tabbane
{"title":"Network Coding scheme behavior in a Vehicle-to-Vehicle safety message dissemination","authors":"Imen Achour, T. Bejaoui, A. Busson, S. Tabbane","doi":"10.1109/ICCW.2017.7962697","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962697","url":null,"abstract":"Message dissemination is considered as a challenging task in Vehicular Ad-hoc network (VANET). In particular, safety messages, such as, road accident warning, traffic congestion warning, etc., are the most critical messages type that need to be efficiently transmitted in a wireless and mobile network where the topology changes dynamically. Many protocols have been proposed for the sake of disseminating information with a high data reachability and a low end-to-end delay in a limited bandwidth. In this work, we focus on a new trend of dissemination protocols based on the “Network Coding” (NC) scheme. Precisely, we intent to study the NC gain toward safety message dissemination and deduce its suitability in accordance to such application requirements. To this end, three NC-based protocols are proposed for the aim at thoroughly studying the impact of such technique on the safety message dissemination performance. The gain of NC scheme is studied under different traffic densities (from low to high dense network). The simulation results show that NC could be an efficient solution to overcome the intermittent connectivity in sparse network mainly for comfort applications but not suitable for safety message dissemination, especially in high dense network, since it may introduce a high transmission delay.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"101 1","pages":"441-446"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90072634","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: 3
Distributed Precedence Queuing for Efficient Spectrum Management in Cognitive Radio Networks 认知无线电网络中高效频谱管理的分布式优先排队
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962807
M. Krishna
{"title":"Distributed Precedence Queuing for Efficient Spectrum Management in Cognitive Radio Networks","authors":"M. Krishna","doi":"10.1109/ICCW.2017.7962807","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962807","url":null,"abstract":"Priority queue-based techniques improve spectrum efficiency by allocating the underutilized spectral bands (holes) of primary users to secondary users in Cognitive Radio Networks (CRN). This article proposes a Distributed Precedence Queuing scheme for Efficient Spectrum Management (DPQESM) in CRNs. The proposed method classifies the available channels into periodic and aperiodic based on the state of active primary user nodes. For each channel, the probability distribution of primary users, secondary users, hidden primary nodes and allocation cost are evaluated. This approach improves the channel utilization factor and frequency reuse in CRN. Distributed precedence factors of secondary user nodes are evaluated in terms of input signal power, average reuse factor, redeemable power rate and channel availability. The proposed DPQESM scheme evaluates channel allocation cost per session which is a function of power levels, available spectrum slots on each channel, average channel access time and packet size. This approach further optimizes the spectrum allocation in the network. Simulation results indicate that the channel allocation costs are reduced for the proposed DPQESM scheme as compared to the existing distributed probability and simple queue-based methods in CRN.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"1 1","pages":"1111-1116"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91280166","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
Load analysis and sleep mode optimization for energy-efficient 5G small cell networks 高效节能5G小型蜂窝网络的负载分析和睡眠模式优化
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962815
H. Celebi, Ismail Güvenç
{"title":"Load analysis and sleep mode optimization for energy-efficient 5G small cell networks","authors":"H. Celebi, Ismail Güvenç","doi":"10.1109/ICCW.2017.7962815","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962815","url":null,"abstract":"Dense deployment of small cells is seen as one of the major approaches for addressing the traffic demands in next-generation wireless networks. However, dense deployment of large number of small cells necessitates effective techniques for placing under-loaded small cells into sleep mode, so as to save energy. Such techniques should be low complexity and should not also compromise quality of service of users such as short access delay, while they can also result in significant energy savings for delay-tolerant network traffic. In this study, we introduce energy efficient, low-complexity techniques for load-based sleep mode optimization in densely deployed 5G small cell networks. We define a new analytic model to characterize the distribution of the traffic load of a small cell using a Gamma distribution, find its distribution parameters, and verify the validity of the model using computer simulations. We also compare the throughput of various sleep mode techniques as a function of different delay tolerance levels, where our simulation results show that the proposed technique achieves the highest throughput.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"104 1","pages":"1159-1164"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89936439","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: 19
Improved performance of TC-OFDM-PLNC for PLCs using exact derived impulsive noise PDFs 利用精确导出的脉冲噪声pdf改进plc的TC-OFDM-PLNC性能
2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI: 10.1109/ICCW.2017.7962833
Ghanim A. Al-Rubaye, C. Tsimenidis, M. Johnston
{"title":"Improved performance of TC-OFDM-PLNC for PLCs using exact derived impulsive noise PDFs","authors":"Ghanim A. Al-Rubaye, C. Tsimenidis, M. Johnston","doi":"10.1109/ICCW.2017.7962833","DOIUrl":"https://doi.org/10.1109/ICCW.2017.7962833","url":null,"abstract":"This paper presents an improvement to the end-to-end bit error rate (E2E-BER) performance of turbo-coded orthogonal frequency division multiplexing for physical layer network coding (TC-OFDM-PLNC) over power line communication (PLC) channels in the presence of impulsive noise. A novel detection scheme is introduced to transform the transmit signal constellation based on the frequency-domain channel coefficients in order to improve the performance of the turbo decoder at the relay node and end nodes, respectively, on a link-by-link (LBL) basis utilizing newly derived noise probability density functions (PDFs). Moreover, the closed-form expressions of the BER at the relay, end nodes and E2E are derived, in addition to the E2E average BER upper-bound (AUB). Monte Carlo simulation results closely verify the validity of the derived analytical expressions and reveal that the proposed method utilizing exact derived PDFs for impulsive probability α = 10−1 gives coding gains of 4.5 dB and 8.5 dB at Pe = 10−4 for the minimum mean square error (MMSE) and the zero forcing (ZF) equalizers, respectively, compared to the conventional TC-OFDM-PLNC system.","PeriodicalId":6656,"journal":{"name":"2017 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"32 1","pages":"1271-1276"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89567464","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: 6
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