2015 International Symposium on Wireless Communication Systems (ISWCS)最新文献_第3页

Epidemic information dissemination in opportunistic scenarios: a realistic model obtained from experimental traces 机会情景下的流行病信息传播:由实验痕迹得出的现实模型

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454368

L. Galluccio, Colian Giannini, B. Lorenzo, S. Glisic, C. Buratti, R. Verdone

引用次数: 1

Multi-cell flow-level performance of traffic-adaptive beamforming under realistic spatial traffic conditions 现实空间交通条件下交通自适应波束形成的多小区流级性能

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454445

Henrik Klessig, Maciej Soszka, G. Fettweis

{"title":"Multi-cell flow-level performance of traffic-adaptive beamforming under realistic spatial traffic conditions","authors":"Henrik Klessig, Maciej Soszka, G. Fettweis","doi":"10.1109/ISWCS.2015.7454445","DOIUrl":"https://doi.org/10.1109/ISWCS.2015.7454445","url":null,"abstract":"Upcoming 5G wireless technology will enable various new applications and is going to support a massive amount of devices per cell. In this regard, ultra-dense small cell deployments are a means to cope with the need of extremely high data rates of several tens of Gbps and with the increasing data traffic demand. However, denser deployments may lead to more severe inter-cell interference, which is strongly connected to the actual spatial distribution of the mobile traffic demand. Traffic-adaptive beamforming using phased antenna arrays can be an attractive solution for concentrating capacity at desired traffic hot spot locations while inter-cell interference is reduced. In this paper, we propose a flexible and holistic model, which describes flow-level performance of networks, which consist of base stations equipped with phased antenna arrays, accurately and considers dynamic inter-cell interference. Moreover, we present a configurable spatial traffic model to generate data traffic maps with various statistical properties. We use these traffic maps to evaluate the performance of a traffic-adaptive beamforming algorithm proposed and compare it the performance of a state-of-the-art antenna down-tilt algorithm.","PeriodicalId":383105,"journal":{"name":"2015 International Symposium on Wireless Communication Systems (ISWCS)","volume":"396 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131645131","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

Electromagnetic emission-aware resource allocation for the uplink of OFDM wireless communication systems OFDM无线通信系统上行链路的电磁发射感知资源分配

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454381

Y. Sambo, Mohammed Al-Imari, F. Héliot, M. Imran

{"title":"Electromagnetic emission-aware resource allocation for the uplink of OFDM wireless communication systems","authors":"Y. Sambo, Mohammed Al-Imari, F. Héliot, M. Imran","doi":"10.1109/ISWCS.2015.7454381","DOIUrl":"https://doi.org/10.1109/ISWCS.2015.7454381","url":null,"abstract":"With wireless communications increasingly becoming popular and convergent, service providers have to continuously upgrade their networks in order to support the increasing demand for bandwidth. However, given that wireless communication systems operate on radiofrequency waves, the health effects of electromagnetic (EM) emission from these systems are increasingly becoming a concern due to the ubiquity of mobile communication devices. In order to address these concerns, we propose in this paper, an EM emission reduction scheme for the uplink of OFDM wireless systems. We formulate the EM reduction scheme as a convex optimization problem and solve it by allocating bits to users on their respective subcarriers. This is based on the assumption that the network can predict the channel state information of all the users for a given transmission window. Simulation results show that our proposed scheme significantly outperforms the benchmark classic greedy spectral efficiency (SE) based scheme and an energy efficiency based scheme by at least 3 and 2 orders of magnitude, respectively.","PeriodicalId":383105,"journal":{"name":"2015 International Symposium on Wireless Communication Systems (ISWCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129372437","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

Variable-power scheduling for perpetual target coverage in energy harvesting wireless sensor networks 能量采集无线传感器网络中目标永久覆盖的变功率调度

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454346

Qianqian Yang, Deniz Gündüz

引用次数: 12

Compensation based ON/OFF energy saving through dominant sets 通过优势集实现基于ON/OFF节能的补偿

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454383

M. Khanfouci

引用次数: 0

A novel pilot scheme for 5G downlink transmission 一种新型5G下行传输试点方案

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454320

K. Wesołowski, Adrian Langowski, K. Bakowski

引用次数: 5

Modelling deterministic channel access in millimetre wave Wi-Fi 在毫米波Wi-Fi中建模确定性信道接入

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454306

E. Khorov, A. Ivanov, A. Lyakhov, Vitaly Zankin

引用次数: 3

Information rates over an AWGN channel with an energy harvesting transmitter having a finite energy buffer 具有有限能量缓冲的能量收集发射机的AWGN信道上的信息速率

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454377

K. DeekshithP., V. Sharma

引用次数: 0

An adaptive channel selection scheme for reliable TSCH-based communication 基于tsch的可靠通信自适应信道选择方案

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454397

Peishu Li, T. Vermeulen, Hong Liy, S. Pollin

{"title":"An adaptive channel selection scheme for reliable TSCH-based communication","authors":"Peishu Li, T. Vermeulen, Hong Liy, S. Pollin","doi":"10.1109/ISWCS.2015.7454397","DOIUrl":"https://doi.org/10.1109/ISWCS.2015.7454397","url":null,"abstract":"Energy consumption is one of the main issues of Internet of things applications. The IEEE 802.15.4 standard defines the medium access control and physical layer for low data rate wireless personal area networks with low energy consumption. The limitations of IEEE 802.15.4 in reliability are overcome by the IEEE 802.15.4e standard amendment defining three more MAC modes. Time slotted channel hopping (TSCH) is the most interesting one, providing high reliability. However, the link quality degradation still exists in the TSCH protocol, especially with high amount of interference and deep fading. This comes from the fact that the channel list in TSCH is fixed. In this paper we propose an adaptive channel selection scheme based on the multi-arm bandit problem. The selection of each channel is formulated as an independent process with an associated variable called the Gittins index. For optimal channel selection, the algorithm is modified to adapt to a varying environment by using a greedy strategy. The trade off between exploring all the channels to gather information and exploiting the selected good channels to avoid interference or fading, is investigated to achieve the best performance. Network simulation is done to explore and verify the algorithm design with NS-3. The throughput of TSCH with our channel selection scheme can achieve 85% of the ideal case, while TSCH with default hopping list can only achieve 54% in our simulation scenario.","PeriodicalId":383105,"journal":{"name":"2015 International Symposium on Wireless Communication Systems (ISWCS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127346546","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: 18

Distributed energy-efficient UL power control in massive MIMO with hardware impairments and imperfect CSI 具有硬件缺陷和不完善CSI的大规模MIMO分布式节能UL功率控制

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI: 10.1109/ISWCS.2015.7454353

A. Zappone, L. Sanguinetti, G. Bacci, Eduard Axel Jorswieck, M. Debbah

{"title":"Distributed energy-efficient UL power control in massive MIMO with hardware impairments and imperfect CSI","authors":"A. Zappone, L. Sanguinetti, G. Bacci, Eduard Axel Jorswieck, M. Debbah","doi":"10.1109/ISWCS.2015.7454353","DOIUrl":"https://doi.org/10.1109/ISWCS.2015.7454353","url":null,"abstract":"This work proposes a distributed power allocation scheme to maximize energy efficiency in the uplink of multi-cell massive MIMO systems with hardware impairments at the user equipments (UEs) and imperfect channel state information at the base stations (BSs). Each UE in the network is modeled as a rational agent that engages in a generalized non-cooperative game and allocates its available transmit power to maximize its individual utility (defined as the UE's throughput per Watt of transmit power) subject to target rates and power constraints. The existence and uniqueness of the generalized Nash equilibrium of the game are studied in the asymptotic regime where the number of BS antennas and UEs grow large with a non trivial ratio. A fully distributed algorithm based on best-response dynamics and relying on large-scale fading components is proposed. Sufficient conditions to guarantee convergence to the equilibrium point are given. Numerical results are used to evaluate the performance of the proposed solution and to validate the analysis in a system of finite size.","PeriodicalId":383105,"journal":{"name":"2015 International Symposium on Wireless Communication Systems (ISWCS)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122355372","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