2012 IEEE Globecom Workshops最新文献_第3页

Utility-based radio link assignment in multi-radio heterogeneous networks 多无线电异构网络中基于效用的无线电链路分配

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477645

A. Y. Panah, Shu-ping Yeh, N. Himayat, S. Talwar

{"title":"Utility-based radio link assignment in multi-radio heterogeneous networks","authors":"A. Y. Panah, Shu-ping Yeh, N. Himayat, S. Talwar","doi":"10.1109/GLOCOMW.2012.6477645","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2012.6477645","url":null,"abstract":"Techniques for coordinated use of WiFi and LTE radio links are developed for operator-managed multi-radio heterogeneous networks. In particular, we consider deployments based on integrated small cells with co-located WiFi and LTE interfaces, which allow for tighter coordination between the two interfaces especially when used together with WiFi/LTE capable client devices. The paper develops a utility based framework which optimizes the partitioning of users between WiFi and LTE to improve the aggregate per-cell utility. The resulting link assignment framework is applied to take advantage of the orthogonal WiFi carrier to mitigate cross-tier LTE interference between macro-cells and small-cells. Results show that this technique not only improves system capacity and coverage beyond what is achievable with uncoordinated use of WiFi and LTE, but also preserves macro-cell throughput by reducing the need for macro-cells to mute their transmissions in order to avoid cross-tier interference. We also apply the utility-based assignment framework to improve the on-time throughput across users, which measures the average data rate delivered to a user before its delay deadline. This is an important metric to characterize the quality-of-service achievable for transmitting delay sensitive traffic, such as real-time voice and video. Our results show that accounting for delay sensitivity in the optimization can improve the number of users achieving target on-time throughput by up to 3x, when compared with un-coordinated use of WiFi and LTE interfaces.","PeriodicalId":290330,"journal":{"name":"2012 IEEE Globecom Workshops","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114215618","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

A hybrid contention/reservation medium access protocol for Wireless Sensor Networks 一种用于无线传感器网络的混合竞争/保留介质访问协议

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477836

P. Bithas, Athanasios S. Lioumpas, A. Alexiou

{"title":"A hybrid contention/reservation medium access protocol for Wireless Sensor Networks","authors":"P. Bithas, Athanasios S. Lioumpas, A. Alexiou","doi":"10.1109/GLOCOMW.2012.6477836","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2012.6477836","url":null,"abstract":"Most Wireless Sensor Networks (WSNs) applications require that a large number of low-complexity energy-constrained sensors forward the sensed information to a sink node, which gathers, processes and forwards the information to the end-user. Although, this approach is beneficial for the sensor nodes, since most of the complexity is delegated to the sink node, it is also the origin of severe bottleneck effects near to sink. Having a large number of sensors trying to forward their data to a single sink node leads to increased traffic intensity, congestion and increased packet loss probabilities. The key point in coping with this problem is the medium access control (MAC) protocols that handle the sensors' traffic, with respect to specific performance optimization criteria. Following the general research trend, which focuses on hybrid contention/reservation MAC protocols, we present a novel hybrid protocol, which decides on the access mode to be used, based on the trade-off between the expected throughput and protocol complexity. The expected throughput can be predicted by exploiting an analytical framework grounded on the queueing theory, which evaluates the performance of both contention based and contention-free access schemes. Extensive system simulation results validate the theoretical derivations and the ability of the proposed hybrid MAC scheme to balance between performance and complexity.","PeriodicalId":290330,"journal":{"name":"2012 IEEE Globecom Workshops","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114701785","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

Coordinated multi point transmission in 3GPP LTE heterogeneous networks 3GPP LTE异构网络中的协调多点传输

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477643

S. Geirhofer, P. Gaal

引用次数: 14

Rotary Dial Model — A model-driven methodology for autonomic network design 一个模型驱动的方法，用于自主网络设计

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477694

Arun Prakash, I. Schieferdecker, Michael Wagner, Christian Hein

引用次数: 2

A novel cognitive management scheme for the virtual network resources 一种新的虚拟网络资源认知管理方案

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477684

Yanni Han, Zihou Wang, Hui Tang, S. Ci

引用次数: 0

Energy-efficient power allocation for M2M communications with energy harvesting transmitter 具有能量收集发射机的M2M通信的节能功率分配

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477832

D. W. K. Ng, R. Schober

引用次数: 25

Pulse shaping in unipolar OFDM-based modulation schemes 基于单极ofdm调制方案的脉冲整形

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477752

D. Tsonev, S. Sinanović, H. Haas

引用次数: 11

Impact of motion and channel parameters on the estimation of transmitter position in robotic networks 机器人网络中运动和信道参数对发射机位置估计的影响

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477814

Mehrzad Malmirchegini, A. Ghaffarkhah, Y. Mostofi

引用次数: 5

A content retrieval model for Information Centric MANETs: 1-dimensional case 以信息为中心的MANETs的内容检索模型:一维情况

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477715

Wei Quan, Jianfeng Guan, Shijie Jia, Junlong Zhu, Changqiao Xu, Hongke Zhang

引用次数: 8

Throughput enhancement for VHT WLANs based on two-level network allocation vector 基于两级网络分配向量的VHT无线局域网吞吐量增强

2012 IEEE Globecom Workshops Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477692

Baofeng Ji, Kang Song, Chunguo Li, Yongming Huang, Luxi Yang

引用次数: 9