2014 11th International Symposium on Wireless Communications Systems (ISWCS)最新文献_第7页

On precoding MIMO-FBMC with imperfect channel state information at the transmitter 发射机信道状态信息不完全的MIMO-FBMC预编码研究

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933464

D. L. Ruyet, R. Zakaria, Berna Özbek

引用次数: 7

Mutual information of phase-noise impaired wireless networks 相位噪声受损无线网络的互信息

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933363

G. Alfano, A. Zappone, Eduard Axel Jorswieck, G. Montorsi

引用次数: 0

Experimental assessment of WiMAX transmissions under highly time-varying channels 高时变信道下WiMAX传输的实验评估

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933447

Pedro Suárez-Casal, J. Rodríguez-Piñeiro, J. García-Naya, L. Castedo

引用次数: 7

A framework for modeling and implementing QoS-aware load balancing solutions in WiFi hotspots 一个在WiFi热点中建模和实现qos感知负载均衡解决方案的框架

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933315

M. A. Ertürk, L. Vollero, M. Aydin, O. C. Turna, M. Bernaschi

{"title":"A framework for modeling and implementing QoS-aware load balancing solutions in WiFi hotspots","authors":"M. A. Ertürk, L. Vollero, M. Aydin, O. C. Turna, M. Bernaschi","doi":"10.1109/ISWCS.2014.6933315","DOIUrl":"https://doi.org/10.1109/ISWCS.2014.6933315","url":null,"abstract":"Access Point (AP) selection in WiFi hotspots is driven by stations and it is based on the measured strongest RSSI (Received Signal Strength Indicator) level: any station connects to the AP that provides the higher physical data rate. Although simple and effective in low crowded scenarios with low-medium traffic load, this strategy performs inefficiently when the number of mobile users is high and their distribution among APs is unbalanced, i.e. when network congestion becomes an issue. Load Balancing (LB) solutions aim at solving this problem by enforcing the connection of stations to the AP having either the smallest number of associated stations or the lowest traffic load. However, LB solutions do not account for traffic priorities or, when they consider them, they do not deal with the joint configuration of QoS (Quality of Service) and LB parameters. In this study we present a framework for modeling, analyzing and designing QoS-aware LB solutions. The proposed framework assumes that stations implement the Enhanced Distributed Channel Access (EDCA) mechanism of the IEEE 802.11e standard. Moreover, in order to make the framework concrete, we assume that the QoS goal is the weighted fair allocation of wireless resources. However, the framework is not restricted to this goal and can be easily extended in order to deal with a different cost function. The proposed framework is validated through simulations in a typical indoor LB scenario. The results show that the model is effective in capturing network performance and in designing LB solutions that account for traffic priorities and the configuration of QoS parameters.","PeriodicalId":431852,"journal":{"name":"2014 11th International Symposium on Wireless Communications Systems (ISWCS)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130741612","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

Optimizing the energy efficiency of SIMO receivers with compact uniform linear arrays 紧凑均匀线性阵列SIMO接收机的能量效率优化

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933343

Qing Bai, A. Mezghani, M. Ivrlac, J. Nossek

引用次数: 1

Fast-convolution implementation of linear equalization based multiantenna detection schemes 基于线性均衡的多天线检测方案的快速卷积实现

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933446

M. Renfors, J. Yli-Kaakinen

引用次数: 4

Connectivity and security in a D2D communication protocol for public safety applications 用于公共安全应用的D2D通信协议的连接性和安全性

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933414

L. Goratti, G. Steri, K. Gomez, G. Baldini

{"title":"Connectivity and security in a D2D communication protocol for public safety applications","authors":"L. Goratti, G. Steri, K. Gomez, G. Baldini","doi":"10.1109/ISWCS.2014.6933414","DOIUrl":"https://doi.org/10.1109/ISWCS.2014.6933414","url":null,"abstract":"Device-to-Device (D2D) communication is an important feature for many kinds of mobile networks and in particular for the UMTS Long Term Evolution Advanced (LTE-A) cellular technology, where an underlay network can be created between User Equipments (UEs) without the support of an evolved Node B (eNB). The possibility to allow direct links between UEs plays an important role when the commercial LTE infrastructure is subject to failures or becomes unavailable after a disaster. Project ABSOLUTE, in scenarios for public safety, proposes raising in the sky a balloon with attached a 4G eNB (AeNB) to restore temporarily connectivity. In all cases in which UEs are out-of-coverage of the AeNB like in indoors, D2D becomes crucial. In this work, we propose to establish direct links employing a communication protocol that relies on the transmission of beacon frames sent in broadcast mode by selected UEs. We delve security aspects of this D2D protocol suitable for Public Safety (PS) users with out-of-coverage UEs based on sharing encryption keys. We pursue a network connectivity analysis of the secure protocol whereby we are able to show the existence of tradeoff points between connectivity and the increased overhead added by security for different values of the system parameters.","PeriodicalId":431852,"journal":{"name":"2014 11th International Symposium on Wireless Communications Systems (ISWCS)","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114988814","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: 47

A fast subspace channel estimation for STBC-based MIMO-OFDM systems 基于stbc的MIMO-OFDM系统的快速子空间信道估计

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933323

Biling Zhang, Jung-Lang Yu, Jian-Wei Lai

引用次数: 5

SON management based on weighted objectives and combined SON Function models 基于加权目标和组合SON功能模型的SON管理

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933337

Christoph Frenzel, Simon Lohmuller, L. Schmelz

引用次数: 9

A conservative approach to sum rate maximization in asynchronous ad hoc networks using multi-carrier modulation schemes 采用多载波调制方案的异步自组网中求和速率最大化的保守方法

2014 11th International Symposium on Wireless Communications Systems (ISWCS) Pub Date : 2014-10-23 DOI: 10.1109/ISWCS.2014.6933370

Juwendo Denis, M. Pischella, D. L. Ruyet

引用次数: 0