2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)最新文献_第3页

Energy efficient heterogeneous network with self-organized directional antennas 具有自组织定向天线的高能效异构网络

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122569

Changqing Yang, Yong Wu

引用次数: 0

An energy-efficient neighbor discovery protocol for 6LoWPAN smart grid applications 面向6LoWPAN智能电网的节能邻居发现协议

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122528

Sangil Choi, W. Lee, Jong-Hoon Youn, Dreizan Moore, Matthew Schuette

{"title":"An energy-efficient neighbor discovery protocol for 6LoWPAN smart grid applications","authors":"Sangil Choi, W. Lee, Jong-Hoon Youn, Dreizan Moore, Matthew Schuette","doi":"10.1109/WCNCW.2015.7122528","DOIUrl":"https://doi.org/10.1109/WCNCW.2015.7122528","url":null,"abstract":"The Smart Grid (SG) is one of the latest emerging and rising models for modernizing traditional electrical power grids, and wireless communication is considered as a major building block in realizing SG. SG applications enable electrical devices to be interconnected and communicate with each other, requiring pervasive control of these actors. Therefore, wireless sensor network-based applications are well suited to this requirement. This paper proposes an energy-efficient neighbor discovery protocol for 6LoWPAN SG applications. We discuss some practical challenges and difficulties in applying block designs to 6LoWPAN neighbor discovery problems and provide a new solution to the discovery problem derived from the original block designs. In this proposed approach, we design a new construction mechanism of neighbor discovery schedules and provide a mathematical proof of the proposed concept. A key aspect of the proposed protocol is that it combines any two block designs in order to overcome limitations of the original block designs. In the simulation study, we evaluate the performance of the proposed protocol and compare its performance with that of existing representative neighbor discovery protocols using TOSSIM. The results of our simulation study show that the maximum latency of the proposed protocol is about 40% lower than that of existing protocols. Furthermore, our protocol spends approximately 30% less energy than existing protocols during the neighbor discovery process.","PeriodicalId":123586,"journal":{"name":"2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122487478","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

The evaluation of geometry-based stochastic models for device-to-device channels 设备到设备通道的基于几何的随机模型的评估

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122578

Yan Li, B. Ai, D. Michelson, Siyu Lin, Qi Wang, Z. Zhong

{"title":"The evaluation of geometry-based stochastic models for device-to-device channels","authors":"Yan Li, B. Ai, D. Michelson, Siyu Lin, Qi Wang, Z. Zhong","doi":"10.1109/WCNCW.2015.7122578","DOIUrl":"https://doi.org/10.1109/WCNCW.2015.7122578","url":null,"abstract":"Device-to-device (D2D) communication is becoming a critical technology to improve the spectral efficiency in cellular communication systems. Although many upper-layer protocols have been designed for D2D communications, these work did not consider the specific characteristics of D2D channels, such as low antenna height and dual mobility, due to the lack of adequate D2D channel models. To promote research on these aspects, in this paper, different geometry-based stochastic models (GBSMs) are evaluated to facilitate channel-oriented D2D communication system design and optimization. Firstly, based on the specific characteristics of D2D channels, different GBSMs are introduced for D2D channels, their spatial correlation and Doppler properties are analyzed. Next, the space-time-frequency characteristics metrics including spatial cross-correlation function and Doppler power spectral density are used to evaluate the different channel models with different scenarios. Simulation results show that GBSMs can be easily modified to adapt different D2D communication scenarios, and the application of GBSMs have enormous relationship with D2D communication scenarios.","PeriodicalId":123586,"journal":{"name":"2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122606742","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

Comparison of CoMP and MISO for energy efficiency in HetNets 在HetNets中比较CoMP和MISO的能源效率

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122580

A. He, Lifeng Wang, Yue Chen, M. Hansard, Tiankui Zhang

{"title":"Comparison of CoMP and MISO for energy efficiency in HetNets","authors":"A. He, Lifeng Wang, Yue Chen, M. Hansard, Tiankui Zhang","doi":"10.1109/WCNCW.2015.7122580","DOIUrl":"https://doi.org/10.1109/WCNCW.2015.7122580","url":null,"abstract":"Energy efficiency has become one of the key performance indicators for 5G wireless networks. Coordinated multipoint (CoMP) transmission/reception and multiinput single-output (MISO) are two technologies which can achieve higher energy efficiency in heterogeneous networks (HetNets) compared to conventional single-input single-out (SISO) systems. CoMP improves energy efficiency by joint transmission among cooperative base stations (BSs) while MISO achieves this by maximal ratio transmission (MRT) beamforming. In this paper, we use a stochastic geometry approach to analyze and compare the energy efficiency of CoMP and MISO in HetNets. First we derive an exact theoretical expression for the network coverage probability of MISO which is validated by Monte Carlo simulations. Then energy efficiency of a two-tier HetNet with CoMP and MISO is analyzed respectively and compared. Numerical results show that the energy efficiency of MISO rises with increasing number of antennas. The achievable energy efficiency of both CoMP and MISO is related closely to the density ratio between Pico BS (PBS) and Macro BS (MBS). When the density ratio is lower than a critical value, MISO is more energy efficient than CoMP; while CoMP outperforms MISO when the density ratio goes beyond the critical value. The exact critical value varies with the number of the antennas used in MISO.","PeriodicalId":123586,"journal":{"name":"2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126717220","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

Medium access design for LTE in unlicensed band LTE免授权频带介质接入设计

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122583

A. Bhorkar, C. Ibars, A. Papathanassiou, Pingping Zong

引用次数: 41

A non-intrusive model to predict the exible energy in a residential building 住宅建筑可动能量的非侵入式预测模型

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122531

Luc Dufour, D. Genoud, A. Jara, J. Treboux, B. Ladevie, J. Bezian

引用次数: 5

Efficient and Scalable SPARQL Query Processing with Transformed Table 转换表的高效可伸缩SPARQL查询处理

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122537

S. Huang, Chia-ho Yu, C. Shieh, Ming-Fong Tsai

引用次数: 1

Improving VHT MU-MIMO communications by concatenating long data streams in consecutive groups 通过在连续组中连接长数据流来改进VHT MU-MIMO通信

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122538

A. Syed, L. Trajković

引用次数: 4

On the time dynamics of commercial networks with comparable data sets across europe 利用欧洲各地可比数据集研究商业网络的时间动态

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122558

Alexandros Palaios, Janne Riihijärvi, P. Mähönen, V. Atanasovski, L. Gavrilovska, P. V. Wesemael, A. Dejonghe, P. Scheele

{"title":"On the time dynamics of commercial networks with comparable data sets across europe","authors":"Alexandros Palaios, Janne Riihijärvi, P. Mähönen, V. Atanasovski, L. Gavrilovska, P. V. Wesemael, A. Dejonghe, P. Scheele","doi":"10.1109/WCNCW.2015.7122558","DOIUrl":"https://doi.org/10.1109/WCNCW.2015.7122558","url":null,"abstract":"In this paper we present results on the time dynamics of the most used cellular bands, from the measurement campaign conducted in seven European cities. Special attention was given on acquiring comparable datasets between the different measurement locations. We provide detailed examples of how much variability there is in the measured activity and we also test the validity of common assumptions usually found in the literature. In particular, we show that the spectrum occupancy metrics exhibit significant degree of stationarity in all the measurement locations and in all of the frequency bands studied. We also characterize in detail the influence of the diurnal cycle, i.e., the differences in spectrum use during different times of day. In addition to raw spectrum occupancy metrics, we study the structure of the ON/OFF activity patterns for cellular bands. Our results show that the ON and OFF period durations in our data sets have significantly heavier tails than predicted by the commonly used Markov models.","PeriodicalId":123586,"journal":{"name":"2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125010739","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

Delayed offloading zone associations using cloud cooperated heterogeneous networks 基于云协同异构网络的延迟卸载区关联

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2015-03-09 DOI: 10.1109/WCNCW.2015.7122584

E. M. Mohamed, K. Sakaguchi, S. Sampei

{"title":"Delayed offloading zone associations using cloud cooperated heterogeneous networks","authors":"E. M. Mohamed, K. Sakaguchi, S. Sampei","doi":"10.1109/WCNCW.2015.7122584","DOIUrl":"https://doi.org/10.1109/WCNCW.2015.7122584","url":null,"abstract":"Delayed offloading of mobile user delay tolerant traffic, through other networks such as WiFi networks or millimeter wave (mm-w) gates, is a promising solution for dealing with the ever-growing problem of wireless cellular network capacity. In this paper, we investigate the problem of how we can optimally associate a user with delayed traffic to a nearby offloading zone, i.e., to which nearby offloading zone a user with delayed traffic should be associated. Towards that, we propose an adaptive scheme for offloading zone association, including a weighted proportional fairness (WPF) online algorithm for optimal zone selection. The proposed scheme is a network-based, which maximizes the total system offloading and the users offloading experiences (OFEs). To efficiently implement the proposed scheme, we also suggest a cloud cooperated heterogeneous network (CC-HetNet) to hold the delayed offloading process in a cloud cooperated manner. In this CC-HetNet, the offloading zones and the Macro Base station (BS) are linked to the Centralized Radio Access Network (C-RAN) using high speed backhaul links. The proposed scheme of offloading zone association will be implemented in the C-RAN as an enhanced Access Network Discovery and Selection Function for delayed offloading networks.","PeriodicalId":123586,"journal":{"name":"2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125089869","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