2012 IEEE Wireless Communications and Networking Conference (WCNC)最新文献_第10页

Measuring and modeling mobile phone charger energy consumption and environmental impact 测量和模拟手机充电器的能耗和环境影响

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214357

Mikko V. J. Heikkinen, J. Nurminen

引用次数: 3

Performance evaluation of TCP in IEEE 802.16 networks IEEE 802.16网络中TCP的性能评估

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214309

Konstantinos G. Tsiknas, G. Stamatelos

引用次数: 12

Self-interference aware MIMO filter design for non-regenerative multi-pair two-way relaying 非再生多对双向继电器自干扰感知MIMO滤波器设计

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214264

Holger Degenhardt, A. Klein

引用次数: 20

Enhanced MIMO subspace detection with interference cancellation 具有干扰抵消的增强MIMO子空间检测

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214254

Yejian Chen, S. Brink

引用次数: 6

Concurrent spectrum sensing and data transmission scheme in a CR system CR系统中的并发频谱感知和数据传输方案

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6213985

Woongsup Lee, D. Cho

引用次数: 11

Secondary access based on sensing and primary ARQ feedback in spectrum sharing systems 频谱共享系统中基于传感和主ARQ反馈的二次接入

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214016

Doha Hamza, S. Aïssa

{"title":"Secondary access based on sensing and primary ARQ feedback in spectrum sharing systems","authors":"Doha Hamza, S. Aïssa","doi":"10.1109/WCNC.2012.6214016","DOIUrl":"https://doi.org/10.1109/WCNC.2012.6214016","url":null,"abstract":"In the context of primary/secondary spectrum sharing, we propose a randomized secondary access strategy with access probabilities that are a function of both the primary automatic repeat request (ARQ) feedback and the spectrum sensing outcome. The primary terminal operates in a time slotted fashion and is active only when it has a packet to send. The primary receiver can send a positive acknowledgment (ACK) when the received packet is decoded correctly. Lack of ARQ feedback is interpreted as erroneous reception or inactivity. We call this the explicit ACK scheme. The primary receiver may also send a negative acknowledgment (NACK) when the packet is received in error. Lack of ARQ feedback is interpreted as an ACK or no-transmission. This is called the explicit NACK scheme. Under both schemes, when the primary feedback is interpreted as a NACK, the secondary user assumes that there will be retransmission in the next slot and accesses the channel with a certain probability. When the primary feedback is interpreted as an ACK, the secondary user accesses the channel with either one of two probabilities based on the sensing outcome. Under these settings, we find the three optimal access probabilities via maximizing the secondary throughput given a constraint on the primary throughput. We compare the performance of the explicit ACK and explicit NACK schemes and contrast them with schemes based on either sensing or primary ARQ feedback only.","PeriodicalId":329194,"journal":{"name":"2012 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115198716","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

An efficient and versatile key management protocol for secure smart grid communications 一种高效、通用的安全智能电网通信密钥管理协议

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214081

Jung-Yoon Kim, Hyoung-kee Choi

引用次数: 35

Mobile indoor location based on fractional differentiation 基于分数微分的移动室内定位

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214119

M. Dakkak, A. Nakib, B. Daachi, P. Siarry, J. Lemoine

引用次数: 4

Intra-site CoMP in LTE-A systems: An antenna-selection-based solution LTE-A系统中的站点内比较:基于天线选择的解决方案

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214487

B. Liao, Wen-Rong Wu, Hung-Tao Hsieh

{"title":"Intra-site CoMP in LTE-A systems: An antenna-selection-based solution","authors":"B. Liao, Wen-Rong Wu, Hung-Tao Hsieh","doi":"10.1109/WCNC.2012.6214487","DOIUrl":"https://doi.org/10.1109/WCNC.2012.6214487","url":null,"abstract":"It is known that in cellular systems, the users in cell edge suffer from the interference from interfering cells. In LTE-A, coordinated multi-point (CoMP) processing was proposed to solve the problem. In CoMP, the transmitted/received signals of the users in neighbor cells can be jointly processed such that interference can be either avoided or estimated as desired signals. In the current CoMP operations, precoding is only conducted between individual base-stations and the served user. If we take all the base-stations and the served user into consideration, a network multiple-input-multiple-output (MIMO) system can be constructed. Precoding in such system will have better performance but require a high-dimension codebook which is not supported by current LTE-A systems. In this paper, we first propose a method to solve the problem. The idea is to use the antenna selection technique reducing the number of transmitted antennas such that the existing codebooks can still be used. Existing selection criteria for the maximum likelihood receivers often require sophisticated matrix operations such as QR-decomposition (QRD). Thus, the required computational complexity is high. We then propose some selection criteria without involving matrix operations. Simulations show that while the antenna-selection based precoding method can reduce the feedback overhead and at the same time improve the precoding performance. Also, the performance of the proposed low-complexity criteria is similar to that of the QRD-based criteria.","PeriodicalId":329194,"journal":{"name":"2012 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114761069","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

Multi-device service continuity with adaptive resources provisioning under ubiquitous network 泛在网络下自适应资源配置的多设备业务连续性

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI: 10.1109/WCNC.2012.6214296

Jie Chang, Wen’an Zhou, Junde Song

{"title":"Multi-device service continuity with adaptive resources provisioning under ubiquitous network","authors":"Jie Chang, Wen’an Zhou, Junde Song","doi":"10.1109/WCNC.2012.6214296","DOIUrl":"https://doi.org/10.1109/WCNC.2012.6214296","url":null,"abstract":"The service continuity mechanism is to provide multimedia application with seamless multimedia experience over multiple networks (Wifi, 3G, Wimax, LTE) as well as multiple devices (mobile, PCs, PDA, Settop box) in ubiquitous network. However, most of the proposed approaches of service continuity are either not adaptive resources provisioning or based on a specific definition of context in ubiquitous network environment. This paper presents a multi-device service continuity with adaptive resources provisioning mechanism under ubiquitous network relying on IMS which helps perform service continuity according to user's contexts (such as preferences and habits), network context, service context and device context. The contribution of this paper is to propose: 1) service continuity scenario, architecture and requirements; 2) signaling flow of resource switching for the proposed scenario is proposed; 3) process of adaptive resources provisioning is put forward. Evaluation results show that the service continuity approach based on context-aware, multi-device coordination and adaptive resources provisioning process outperforms the traditional service continuity.","PeriodicalId":329194,"journal":{"name":"2012 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116090316","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