2017 23rd Asia-Pacific Conference on Communications (APCC)最新文献_第10页

Design and error performance of punctured hadamard codes 穿孔标准码的设计与误差性能

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304001

Sheng Jiang, F. Lau, W. M. Tam, Chiu-Wing Sham

引用次数: 1

Increasing the number of connectable ONUs with subcarrier digital modulation passive optical network 用子载波数字调制无源光网络增加可连接onu的数量

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304021

Atsuko Yokotani, S. Ohzahata, H. Ueda

引用次数: 0

Multipath construction and management protocol for mobile sinks in wireless sensor networks 无线传感器网络中移动接收器的多路径构建与管理协议

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304083

Yongje Shin, Hyun-Kyu Lee, Hyunseok Choi, Euisin Lee

{"title":"Multipath construction and management protocol for mobile sinks in wireless sensor networks","authors":"Yongje Shin, Hyun-Kyu Lee, Hyunseok Choi, Euisin Lee","doi":"10.23919/APCC.2017.8304083","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304083","url":null,"abstract":"In Wireless Sensor Networks (WSNs), emergency applications such as fire alerts or intruder detections request to accomplish reliable data delivery on a path from a source to a mobile sink. For reliably delivering data to a mobile sink, many multipath and mobility supporting protocols were proposed. However, since they do not consider link qualities and energy state information to construct multipaths, they require frequent reconstructions of the multipaths due to link or node failures from poor links or energy depletions. Moreover, since they use continuous footprint-chaining or periodic global path reconstructions to support sink mobility, they cannot perfectly provide multipaths from a source to the mobile sink or can cause much energy consumption of sensor nodes to reconstruct multipaths globally. Thus, we propose a multipath routing protocol based on link quality and energy state information for mobile sinks in WSNs. The proposed protocol constructs multipaths consisting of sensor nodes with good link qualities and high energy states to reduce multipath reconstructions. The proposed protocol also uses a reverse path reconstruction and local modification scheme based on our analytical model to reconstruct multipaths energy-efficiently due to movements of a sink. Simulation results conducted in various environments show that the proposed protocol has better performance than the existing protocol.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116828030","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: 0

SDN-enabled headroom services for high-speed data transfers 支持sdn的净空服务，用于高速数据传输

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8303977

Fatma Alali, Xiao Lin, M. Veeraraghavan, N. Yamanaka, Weiqiang Sun

{"title":"SDN-enabled headroom services for high-speed data transfers","authors":"Fatma Alali, Xiao Lin, M. Veeraraghavan, N. Yamanaka, Weiqiang Sun","doi":"10.23919/APCC.2017.8303977","DOIUrl":"https://doi.org/10.23919/APCC.2017.8303977","url":null,"abstract":"WAN provider links are often operated at low utilization levels, which leaves large unused capacity (headroom). In this paper, we propose using Software Defined Networking (SDN) controllers to support novel Static Headroom (SH) and Dynamic Headroom (DH) services to allow customers to fill this headroom with Elephant Flows (EFs) without adversely affecting the provider's ability to meet its Best-Effort (BE) service-level agreements, and ability to absorb extra traffic load created during failure recovery periods. Our solution calls for the use of lower-priority service for EFs. We use simulations to compare SH service with BE service, and DH service with SH service. When EFs are sent on BE service, they could cause packet losses in general-purpose IP traffic, especially when the burstiness of the latter is high, while with SH service, this packet loss rate is reduced to 0. While DH service requires the added complexity of a provider SDN controller, the ability to dynamically route EFs on lower-utilized links results in higher average EF throughput. The higher the non-uniformity (from a node-pair perspective) in network traffic, the greater the DH gain factor.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121795113","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

Differential services in HSR communication systems: Power allocation and antenna selection 高铁通信系统中的差分业务:功率分配和天线选择

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304045

Jiaxun Lu, Ke Xiong, Xuhong Chen, Pingyi Fan

{"title":"Differential services in HSR communication systems: Power allocation and antenna selection","authors":"Jiaxun Lu, Ke Xiong, Xuhong Chen, Pingyi Fan","doi":"10.23919/APCC.2017.8304045","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304045","url":null,"abstract":"In the downlink of high-speed railway communication systems equipped with distributed transmit antennas, high mobility leads to fast time-varying received signal to noise ratios. In this case, dynamic time-domain power allocation and antenna selection could be jointly optimized to improve the system energy efficiency. This paper considers this problem in such a simple way where dynamic switching between multiple-input-multiple-output and single-input-multiple-output is allowed and exclusively utilized, while the sparse scattering terrains and delay-sensitive traffic flows are taken into account. The original optimization problem is a typical mixed integer nonlinear programming (MINLP) problem. Instead of conventional iteration based methods, such as the extended cutting plane method, we propose a low-complexity and direct solution by exploiting the physical nature of original problem, which can be utilized in real time. Theoretical results show that our proposed method can be viewed as the generalization of channel-inversion associated with transmit antenna selection. Also, compared with methods without dynamic antenna selection, our method significantly decreases the average transmit power.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128115000","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

Energy-efficient sensing mechanism for licensed-assisted access under non-saturated traffic condition 非饱和交通条件下许可辅助接入的节能感知机制

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304015

Yongjae Kim, Eunhye Park, Yujae Song, Youngnam Han

引用次数: 2

An distributed deflation algorithm for joint admission control and beamforming in multi-user max-min fairness networks 多用户最大最小公平性网络中联合接纳控制和波束形成的分布式压缩算法

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304049

Jingran Lin, Ruiming Zhao

{"title":"An distributed deflation algorithm for joint admission control and beamforming in multi-user max-min fairness networks","authors":"Jingran Lin, Ruiming Zhao","doi":"10.23919/APCC.2017.8304049","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304049","url":null,"abstract":"Consider a network consisting of one multi-antenna base station (BS) and multiple single-antenna users. With a lot of users awaiting service, the network tends to be congested and the quality of service (QoS) degrades remarkably. This promotes the research on user admission control; i.e., to guarantee QoS, the network serves only a subset of users and rejects the rest. In this paper, we consider a max-min fairness (MMF) problem based on joint admission control and beamforming. In particular, by jointly optimizing the admissible users and the transmit beamformers, we maximize the minimum signal-to-interference-plus-noise-ratio (SINR) of admissible users, such that high QoS and fairness can be guaranteed for them. This problem is essentially NP-hard, and hence we develop a low-complexity iterative deflation algorithm to obtain some efficient approximate solution. In each iteration, we improve the users' SINRs and drop the user with the lowest SINR-to-power ratio, until the given user number is achieved. To facilitate the algorithm implementation, especially in large-scale networks, we further employ the alternating direction method of multipliers (ADMM) to perform per-user optimization. Finally, an efficient distributed algorithm is developed, with each step being solved in closed form.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127700675","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

Investigation of TDD frame structure design for latency reduction of LTE enhancement LTE增强中降低时延的TDD帧结构设计研究

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304052

Shaozhen Guo, Xiaolin Hou, Hanning Wang, X. Wang

引用次数: 0

An effective distributed synchronization method subject to timing error for D2D communication 一种有效的分布式D2D通信同步方法

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304087

L. Cao, Tao Peng, Jian Liu

{"title":"An effective distributed synchronization method subject to timing error for D2D communication","authors":"L. Cao, Tao Peng, Jian Liu","doi":"10.23919/APCC.2017.8304087","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304087","url":null,"abstract":"We study the problem of distributed synchronization for device-to-device(D2D) communication. For D2D out-of-network coverage (ONC) scenario, synchronization among multiple user equipment (UE) is a very important issue due to the fact that synchronization method does not have a common time/frequency standard, so synchronization in self-organized D2D network is adjusting their own time/frequency offset until a group consensus is reached. 3GPP agreed a synchronization method based on multi-hop relays. In this method, UE uses reference signal received power (RSRP) of D2D synchronization signals (D2DSS) as the only criterion for selecting the reference signal and synchronizing with it. However, this method doesn't consider actual timing error of D2DSS, which are accumulated through the previous multi-hop links. Therefore, in this paper, we propose a novel synchronization method where UE selects a reference timing with the smallest RMS error. We examine the problem from system-level perspective, and verify that the proposed method can efficiently make more UE's RMS timing error meet tolerance of SC-FDMA symbols, which means a UE can successfully communicate with its neighbors directly.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133150922","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

5GHz ground-to-air communication link by AeroMACS in high-speed movement scenarios 高速移动场景下AeroMACS提供的5GHz地空通信链路

2017 23rd Asia-Pacific Conference on Communications (APCC) Pub Date : 2017-12-01 DOI: 10.23919/APCC.2017.8304031

K. Morioka, J. Naganawa, N. Kanada, S. Futatsumori, A. Kohmura, N. Yonemoto, Y. Sumiya

{"title":"5GHz ground-to-air communication link by AeroMACS in high-speed movement scenarios","authors":"K. Morioka, J. Naganawa, N. Kanada, S. Futatsumori, A. Kohmura, N. Yonemoto, Y. Sumiya","doi":"10.23919/APCC.2017.8304031","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304031","url":null,"abstract":"System wide information management (SWIM) is a recent concept for providing efficient and safe information sharing in civil aviation. The goal in implementing SWIM is to achieve seamless air traffic management (ATM) services worldwide through the efficient integration of the current ATM systems. In this paper, we consider the wireless media to access SWIM. In the International Civil Aviation Organization (ICAO), the aeronautical mobile airport communications system (AeroMACS) is standardized for the next generation airport surface communication system. It is effective to share various types of information among air traffic controllers, pilots, and airport operators, not only on airport surface, but also in taking off and landing by AeroMACS. However, AeroMACS is intended to be used at speeds of 120km/h or below. In this paper, we study the possibility of using AeroMACS while an aircraft is moving at over 120km/h, as would occur in takeoff and landing situations. We conducted flight tests using an AeroMACS standard-compliant prototype system and an experimental aircraft. In the experiments, we obtained a received signal strength indicator (RSSI) to investigate 5GHz ground-to-air propagation. The results revealed that an onboard antenna configuration involving vertical placement at the top and bottom of the aircraft body is effective in achieving multiple input multiple output (MIMO) operation. Additional throughputs measurements showed that it was possible for AeroMACS to access SWIM both in takeoff and landing situations at an aircraft speed of 200km/h.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121237148","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