2014 IEEE Global Communications Conference最新文献

Power efficient uplink resource allocation in LTE networks under delay QoS constraints 时延QoS约束下LTE网络的高效上行资源分配

2014 IEEE Global Communications Conference Pub Date : 2014-12-10 DOI: 10.1109/GLOCOM.2014.7036978

Adnan Aijaz, M. R. Nakhai, H. Aghvami

引用次数: 5

Harvest-and-jam: Improving security for wireless energy harvesting cooperative networks 收获和干扰:提高无线能量收集合作网络的安全性

2014 IEEE Global Communications Conference Pub Date : 2014-12-09 DOI: 10.1109/GLOCOM.2014.7037289

Hong Xing, Zheng Chu, Z. Ding, A. Nallanathan

{"title":"Harvest-and-jam: Improving security for wireless energy harvesting cooperative networks","authors":"Hong Xing, Zheng Chu, Z. Ding, A. Nallanathan","doi":"10.1109/GLOCOM.2014.7037289","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7037289","url":null,"abstract":"The emerging radio signal enabled simultaneous wireless information and power transfer (SWIPT), has drawn significant attention. To achieve secrecy transmission by cooperative jamming, especially in the upcoming 5G networks with self-sustainable mobile base stations (BSs) and yet not to add extra power consumption, we propose in this paper a new relay protocol, i.e., harvest-and-jam (HJ), in a relay wiretap channel with an additional set of spare helpers. Specifically, in the first transmission phase, a single-antenna transmitter (Tx) transfers signals carrying both information and energy to a multi-antenna amplify-and-forward (AF) relay and a group of multi-antenna helpers; in the second transmission phase, the AF relay processes the information and forwards it to the receiver while each of the helpers generates an artificial noise (AN), the power of which is constrained by its previously harvested energy, to interfere with the eavesdropper. By optimizing the transmit beamforming matrix for the AF relay and the covariance matrix for the AN, we maximize the secrecy rate for the receiver subject to transmit power constraints for the AF relay and all helpers. The formulated problem is shown to be non-convex, for which we propose an iterative algorithm based on alternating optimization. Finally, the performance of the proposed scheme is evaluated by simulations as compared to other heuristic schemes.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"28 1","pages":"3145-3150"},"PeriodicalIF":0.0,"publicationDate":"2014-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78134255","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: 35

Two-way relaying networks with wireless power transfer: Policies design and throughput analysis 具有无线电力传输的双向中继网络:策略设计和吞吐量分析

2014 IEEE Global Communications Conference Pub Date : 2014-12-09 DOI: 10.1109/GLOCOM.2014.7037438

Yuanwei Liu, Lifeng Wang, M. Elkashlan, T. Duong, A. Nallanathan

引用次数: 100

Resource management in cognitive opportunistic access femtocells with imperfect spectrum sensing 不完全频谱感知下认知机会接入飞基站的资源管理

2014 IEEE Global Communications Conference Pub Date : 2014-12-09 DOI: 10.1109/GLOCOM.2014.7037281

Haijun Zhang, Chunxiao Jiang, Xiaotao Mao, A. Nallanathan

{"title":"Resource management in cognitive opportunistic access femtocells with imperfect spectrum sensing","authors":"Haijun Zhang, Chunxiao Jiang, Xiaotao Mao, A. Nallanathan","doi":"10.1109/GLOCOM.2014.7037281","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7037281","url":null,"abstract":"Recently, cognitive radio enabled femtocell is regarded as a promising technique in wireless communications, where the issues of resource allocation and interference management have been investigated intensively. However, spectrum sensing errors are neglected in most of the existing works. In this paper, we propose a resource allocation scheme for orthogonal frequency division multiple access (OFDMA) based cognitive femtocells. The target is to maximize the sum rate of all femtocell users (FUs) under QoS constraints and co-tier/cross-tier interference constraints under imperfect channel sensing. The subchannel and power allocation problem is first modeled as a mixed integer programming problem, and then transformed into a convex optimization problem by relaxing subchannel sharing and imposing co-tier interference constraints, which is finally solved using the dual decomposition method. Based on the obtained solution, an iterative subchannel and power allocation algorithm is proposed. The effectiveness in terms of instantaneous maximum achievable rate of the proposed algorithm as compared with perfect spectrum sensing schemes is verified by simulations.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"40 1","pages":"3098-3102"},"PeriodicalIF":0.0,"publicationDate":"2014-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88034584","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

Performance analysis of energy-efficient MAC protocols using bidirectional transmissions and sleep periods in IEEE 802.11 WLANs IEEE 802.11无线局域网中使用双向传输和睡眠周期的节能MAC协议的性能分析

2014 IEEE Global Communications Conference Pub Date : 2014-12-08 DOI: 10.1109/GLOCOM.2014.7036980

Raúl Palacios, El Moatez Billah Larbaa, J. Alonso-Zarate, F. Granelli

{"title":"Performance analysis of energy-efficient MAC protocols using bidirectional transmissions and sleep periods in IEEE 802.11 WLANs","authors":"Raúl Palacios, El Moatez Billah Larbaa, J. Alonso-Zarate, F. Granelli","doi":"10.1109/GLOCOM.2014.7036980","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7036980","url":null,"abstract":"The Distributed Coordination Function (DCF) is the mandatory access method for any compliant device in Wireless Local Area Networks (WLANs) based on the IEEE 802.11 Standard. WLAN Access Points (APs) and stations (STAs) contend for the access to the wireless channel in order to transmit data by using a variation of Carrier Sense Multiple Access (CSMA). In doing so, they consume a significant amount of energy for continuously monitoring the channel state. In this paper we investigate backwards-compatible mechanisms to increase throughput and energy efficiency in WLANs during contention periods based on DCF. The first mechanism is called Bi-Directional DCF (BD-DCF) because it allows for bidirectional transmissions between APs and STAs with a single channel access invocation. The second mechanism is called Bi-Directional Sleep DCF (BDSL-DCF) as it allows overhearing STAs to enter the sleep state, i.e. switch off the radio transceiver, during bidirectional transmissions. We analyze the performance limits of the proposed protocols in terms of throughput and energy efficiency considering different values for the data packet length and data rate. The results of this work show that the BD-DCF and BDSL-DCF protocols can improve throughput up to 60% and energy efficiency up to 360% when compared to legacy DCF.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"6 1","pages":"1252-1258"},"PeriodicalIF":0.0,"publicationDate":"2014-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82275247","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

Self organising network techniques to maximise traffic offload onto a 3G/WCDMA small cell network using MDT UE measurement reports 自组织网络技术，利用MDT终端测量报告，最大限度地将流量卸载到3G/WCDMA小型蜂窝网络上

2014 IEEE Global Communications Conference Pub Date : 2014-12-08 DOI: 10.1109/GLOCOM.2014.7037136

R. Joyce, Li X. Zhang

引用次数: 5

An extended Hop-by-hop interest shaping mechanism for content-centric networking 一种扩展的逐跳兴趣塑造机制，用于以内容为中心的网络

2014 IEEE Global Communications Conference Pub Date : 2014-12-08 DOI: 10.1109/GLOCOM.2014.7389766

Natalya Rozhnova, S. Fdida

{"title":"An extended Hop-by-hop interest shaping mechanism for content-centric networking","authors":"Natalya Rozhnova, S. Fdida","doi":"10.1109/GLOCOM.2014.7389766","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7389766","url":null,"abstract":"The evolution of the Internet has triggered a significant activity exploring new architectures among which the concept of Information-Centric-Networks (ICN) has emerged. Considering the various ICN solutions, Content-Centric Networking (CCN) is the one that received most attention. The design of CCN is progressing albeit many important issues still deserve a careful analysis and design. In this paper, we cover the important problem of congestion control in CCN and develop our hop-by-hop Interest Shaping mechanism (HoBHIS) framework. We present the foundation and general properties of our solution. We then study the behaviour of HoBHIS and demonstrate the fairness of resource sharing in presence of multiple active conversations. Further, we introduce a mechanism to control the user behavior in order to limit its ability to submit requests in excess creating a potential risk for buffer overflow. We demonstrate the effectiveness of the proposed solutions and provide a performance analysis using the implementation of our schemes in ndnSIM. We show that HoBHIS provides an adequate and efficient solution to the general problem of congestion control in CCN.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"19 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2014-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89292461","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: 27

Analysis of dependency evaluation models for eHealth services 电子医疗服务依赖评估模型分析

2014 IEEE Global Communications Conference Pub Date : 2014-12-08 DOI: 10.1109/GLOCOM.2014.7037172

H. Mshali, Tayeb Lemlouma, D. Magoni

引用次数: 12

SOCRATIC: A social approach to network coding rate control 网络编码速率控制的社会方法

2014 IEEE Global Communications Conference Pub Date : 2014-12-08 DOI: 10.1109/GLOCOM.2014.7036833

Samuel B. Wood, H. Sadjadpour, J. Garcia-Luna-Aceves

引用次数: 0

Outage analysis of integrated mesh LTE femtocell networks 综合网状LTE飞蜂窝网络的中断分析

2014 IEEE Global Communications Conference Pub Date : 2014-12-08 DOI: 10.1109/GLOCOM.2014.7036805

A. Busson, Lynda Zitoune, V. Vèque, B. Jabbari

{"title":"Outage analysis of integrated mesh LTE femtocell networks","authors":"A. Busson, Lynda Zitoune, V. Vèque, B. Jabbari","doi":"10.1109/GLOCOM.2014.7036805","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7036805","url":null,"abstract":"The femtocell - Wi-Fi integration is a promising approach to solve the problem of inter-tier or intra-tier interference in heterogeneous networks. In this paper, multimode femtocell base stations are deployed which form a Wi-Fi mesh network to communicate between themselves while deploying cellular technology (e.g., LTE) for communications with mobile users, thus ensuring ultimately connectivity between mobile users and their macro base stations to improve the network coverage. We propose a tractable model for coverage/outage to evaluate the benefits of such integration in terms of SINR and received signal strength. Our work is based on point processes in two-dimensional plane that models locations of femtocell - Wi-Fi (also referred to as multimode) nodes. The proposed model is more realistic than the classical Poisson point process, as the distribution of points is more homogeneous and it ensures that the nodes are not too close to each other. The derivation of coverage/outage formula allows us to determine operational parameter ranges for the Wi-Fi network to form a mesh network. In addition, it helps in the design of the femtocell network to ensure a suitable coverage for users in terms of SINR and received signal strength.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"30 1","pages":"187-192"},"PeriodicalIF":0.0,"publicationDate":"2014-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83402354","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: 9