2007 IEEE Wireless Communications and Networking Conference最新文献_第2页

Enhancing Accuracy Performance of Bluetooth Positioning 提高蓝牙定位的精度性能

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-11 DOI: 10.1109/WCNC.2007.506

L. T. Son, P. Orten

引用次数: 22

Networked Hearing Aids Using Wireless LAN Technologies 使用无线局域网技术的联网助听器

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-11 DOI: 10.1109/WCNC.2007.498

Mitsuhiro Ogihara, Kenzo Takahashi, S. Taniguchi, Mikio Mori

{"title":"Networked Hearing Aids Using Wireless LAN Technologies","authors":"Mitsuhiro Ogihara, Kenzo Takahashi, S. Taniguchi, Mikio Mori","doi":"10.1109/WCNC.2007.498","DOIUrl":"https://doi.org/10.1109/WCNC.2007.498","url":null,"abstract":"This paper proposes a novel scheme of hearing aid system which will release quite a lot of old people from light hearing loss or presbycusis, with its easy handling functions and high fidelity output. Hearing aids have been much improved over the past twenty years. However, they still require the troublesome fitting process, above all to old people. Most of hearing aid users point out the noisy performance in their reaction polls. The proposed system electronically connects hearing aids using both air and bone conducted voice signals each other via wireless local access, everywhere. The electronic transfer of voice signals enables to reduce the noise more effectively than the acoustic transfer, especially in noisy environments. It leads to global connections through high speed IP networks. Additionally, the amplifier for hearing loss compensation of the system can be controlled independently at each specified audiogram test frequency and gives less distortion than conventional sub-band flat gain controlled amplifiers. It also makes the hearing quality more natural. Thus, it is expected that isolating old people with hearing loss are able to evenly participate in the future ubiquitous network society as well as general people without hearing troubles. This paper describes the configuration, principles of the proposed scheme. The subjective performance test results show the possibility of outstanding quality improvement.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114516153","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: 2

An Orthogonal Frequency Division Duplex (OFDD) System Using an Analog Filter Bank 基于模拟滤波器组的正交频分双工系统

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-11 DOI: 10.1109/WCNC.2007.425

R. Kimura, S. Shimamoto

引用次数: 12

Design Small-Size and Wide-Band T-Shaped Patch Antenna on Ceramic Substrate 陶瓷基板上小尺寸宽频带t型贴片天线的设计

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-11 DOI: 10.1109/WCNC.2007.541

Cheng-Fu Yang, Chang-Yi Hsieh, Chien-Min Cheng

引用次数: 2

Delay Analysis of IEEE 802.11e EDCA Under Unsaturated Conditions IEEE 802.11e EDCA在非饱和条件下的时延分析

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.84

Jing Liu, Z. Niu

引用次数: 16

An Intelligent Assistant for Context-Aware Adaptation of Personal Communications 基于上下文感知的个人通信适应智能助手

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.472

Bassam El Saghir, N. Crespi

引用次数: 8

Analyzing Path Accumulation for Route Discovery in Ad Hoc Networks Ad Hoc网络中路由发现的路径积累分析

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.798

K. Seada, C. Westphal, C. Perkins

引用次数: 7

Efficient Distributed Authentication Method with Local Proxy for Wireless Mesh Networks 基于本地代理的无线Mesh网络高效分布式认证方法

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.651

Insun Lee, Jihoon Lee, Daeyoung Kim

引用次数: 1

Adaptive and Reliable Multi-Path Transmission in Wireless Sensor Networks using Forward Error Correction and Feedback 基于前向纠错和反馈的无线传感器网络自适应可靠多径传输

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.674

Y. Charfi, N. Wakamiya, M. Murata

{"title":"Adaptive and Reliable Multi-Path Transmission in Wireless Sensor Networks using Forward Error Correction and Feedback","authors":"Y. Charfi, N. Wakamiya, M. Murata","doi":"10.1109/WCNC.2007.674","DOIUrl":"https://doi.org/10.1109/WCNC.2007.674","url":null,"abstract":"Providing end-to-end reliability for data transmission is a major challenge for energy-constrained and bandwidth-limited wireless sensor networks. To meet this challenge, attempts have been made using a multi-path transmission mechanism that encodes an information bitstream using forward error correction (FEC), and sends the obtained packets over a number of paths to the destination. Algorithms that, given the paths statistics (e.g., failure probability and energy cost of data transmission over the paths), find the number of channel packets and their transmission paths that optimize the reliability-energy cost tradeoff have been proposed. Once a transmission strategy is obtained, all packets are transmitted regardless of the actual state of the wireless links, which may result in energy and bandwidth losses due to unnecessary transmissions. This can be more severe when arbitrary transmission strategies have to be used due, for example, to the unavailability of paths statistics at the source node, which is the case in many practical applications. In this paper, we propose a hybrid FEC-feedback mechanism. The feedback scheme is used to send ACK packets from the sink to the source node when the information bitstream is actually recovered. We then derive a measure of the expected energy cost of data transmission for the hybrid mechanism. Simulation results show that, on average, the hybrid mechanism consumes up to about 44% less energy than the FEC-based mechanism for the transmission of a bitstream with the same reliability constraint. The energy savings of the hybrid mechanism are even higher when arbitrary transmission strategies have to be used.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123155285","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: 12

Amount of Fading Analysis for Transmit Antenna Selection in MIMO Systems MIMO系统中发射天线选择的衰落量分析

2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.220

Xinwei Deng, Wei Zhang, C. Tellambura

引用次数: 4