发布求助
文献互助 智能选刊 最新文献

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)最新文献

筛选
英文 中文
An adaptive delay-based power control and routing scheme 一种基于自适应延迟的功率控制和路由方案
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723926
Ke Wang, L. Wong, T. Chai
{"title":"An adaptive delay-based power control and routing scheme","authors":"Ke Wang, L. Wong, T. Chai","doi":"10.1109/ICSPCS.2013.6723926","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723926","url":null,"abstract":"In this paper, We propose a Q-learning-based routing scheme embedded with a power-control method to minimize the overall network delay performance. Various problems of applying reinforcement learning method in Mobile Ad hoc Networks (MANETs), such as optimization, the routing-loop problem and the convergence problem, are all addressed accordingly. A power-control scheme which makes use of the on-demand routing information to form an objective function are introduced in order to find an optimal power level that provides a suitable trade-off between transmission range and interference. The impact between power control and routing are also discussed in this paper. Simulations show that our method can achieve better performance under different load and mobility conditions.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115720071","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
Optimization of multiple-channel cooperative spectrum sensing in Rayleigh fading environment 瑞利衰落环境下多通道协同频谱感知优化
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723932
Xiaoxiao Zhang, Wanbin Tang, Huogen Yu, Shaoqian Li
{"title":"Optimization of multiple-channel cooperative spectrum sensing in Rayleigh fading environment","authors":"Xiaoxiao Zhang, Wanbin Tang, Huogen Yu, Shaoqian Li","doi":"10.1109/ICSPCS.2013.6723932","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723932","url":null,"abstract":"In this paper, we consider a cognitive radio network (CRN) where different secondary users (SUs) have the different detection signal-to-noise ratios for the same primary user channel in Rayleigh fading environment. We formulate the optimization problem of multi-channel cooperative spectrum sensing (CSS) to maximize the average throughput of the CRN by jointly optimizing the SUs assignment and the sensing time. Considering the optimization problem is non-convex, we transform the optimization problem to two subproblems: the SUs assignment and the sensing time setting. Specifically, a maximum cost function reduction algorithm and water-filling compensation algorithm are proposed to solve the SUs assignment. An iterative algorithm is used to optimize the sensing time. Numerical results show that the proposed algorithms can achieve the performance which is close to that of exhaustive algorithm. Moreover, the joint design can further improve the average throughput of the CRN.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126343581","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
A robust match filtering algorithm for use with repetitive patterns 一种用于重复模式的鲁棒匹配过滤算法
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723903
Christopher Le Brese, C. N. Young, J. Zou
{"title":"A robust match filtering algorithm for use with repetitive patterns","authors":"Christopher Le Brese, C. N. Young, J. Zou","doi":"10.1109/ICSPCS.2013.6723903","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723903","url":null,"abstract":"Reliably matching feature points is an important part of many computer vision applications. This task is made harder when matching scenes containing repetitive patterns. The description of many feature points may be identical causing ambiguity in the matching results. This paper presents a filtering algorithm to remove erroneous matches caused by repetitive patterns. The proposed algorithm geometrically segments feature point locations into localized groups which are checked for consistency using correlation. A hierarchical approach is taken whereby neighboring groups are checked for consistency and collapsed into stronger ones. Finally a global model is calculated and used to ensure all cliques satisfy the scene geometry. The proposed method is generic and does not rely on specific feature detection algorithm. Experimental results demonstrate that the proposed method is superior to current state-of-the-art algorithms in accuracy and efficiency. The accuracy of matching repetitive patterns obtained from the proposed method is up to 99% compared to 96% obtained by previous state-of-the-art matching algorithms. The root mean squared residual matching error has been improved to 1.11 pixels compared to 4.09 obtained from current state-of-the-art image matching algorithms. The execution time of the method is competitive with most state-of-the-art image matching algorithms.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125992136","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
Simultaneous gain, drift and offset estimation in measurement systems using coherent sampling 相干采样测量系统中的同步增益、漂移和偏移估计
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723972
J. Leis
{"title":"Simultaneous gain, drift and offset estimation in measurement systems using coherent sampling","authors":"J. Leis","doi":"10.1109/ICSPCS.2013.6723972","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723972","url":null,"abstract":"In instrumentation and measurement systems, external noise is often a significant problem. Amplitude modulation is often employed to transform a lowpass system into a narrowband one. In this paper, a technique is proposed to estimate an amplitude-modulated signal using a matrix representation of coherently sampled repetitive measurement sweeps. It is also shown how the technique may be extended using partitioning of the signal matrix to account for both sensor offset and linear time drift. The method is able to simultaneously produce good estimates of the signal amplitude, drift and offset. Results demonstrate that the technique is promising when applied in situations where sensor drift precludes the normal application of synchronous detection.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121766786","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
Human head detection using Histograms of Oriented optical flow in low quality videos with occlusion 基于定向光流直方图的低质量遮挡视频人头检测
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723967
Fu-Chun Hsu, J. Gubbi, M. Palaniswami
{"title":"Human head detection using Histograms of Oriented optical flow in low quality videos with occlusion","authors":"Fu-Chun Hsu, J. Gubbi, M. Palaniswami","doi":"10.1109/ICSPCS.2013.6723967","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723967","url":null,"abstract":"Video detection and tracking of humans in large events is a non-trivial task. The tracked information is useful in calculating crowd behavior parameters such as density, speeds and paths that are critical in making automated decision about crowd behavior. During occluded scenarios, it is very common to have only head and shoulder visible in the videos and the rest of the body is blocked by other people or objects. Although there is wealth of information in literature, tracking in occluded high density environments is not well addressed. In this paper, we aim to detect head and shoulder of people by hybrid motion and visual features in a low quality video with occlusion and cluttered environment. We propose an improved version of histogram of oriented optical flow (HOOF) called integral HOOF. The HOOF is not only shown to be a discriminative feature in low quality video, but also an alternative way to segment moving objects in a video. HOOF and Histogram of Oriented Gradient (HOOG) features are extracted from a real world surveillance video, and Support Vector Machine classifier is trained to detect heads and shoulders. Experimental result shows the HOOF has high precision, recall and accuracy on detecting heads and shoulders.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115973609","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
The effect of time-reversal filter on UWB-IR communications 时间反转滤波器对UWB-IR通信的影响
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723963
Zhenyang He, R. Nakamura, A. Kajiwara
{"title":"The effect of time-reversal filter on UWB-IR communications","authors":"Zhenyang He, R. Nakamura, A. Kajiwara","doi":"10.1109/ICSPCS.2013.6723963","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723963","url":null,"abstract":"Recently ultra wideband impulse radio (UWB-IR) has been attracted much attention on short-range wireless communication, because UWB-IR has abilities to achieve high transmission rate, low power consumption and so on. Considering access-point (AP) terminal pair, as the transmission power of AP is limited to -41.3dBm/MHz from FCC regulation, result in low received signal intensity, thus time-reversal (TiR) scheme based on pre-rake combine technique is suggested as a promising solution to improve Eb/N0 of terminal and also keep terminal structure simple. In our previous work, it has been experimentally discussed that longer TiR filter length (number of combined multi-path) takes better Eb/N0 [1]. However when in high transmission rate, the longer filter length should also take the harder inter-symbol interference (ISI) resulting in degradation of bit error rate (BER). In this work under many kinds of transmission rates, the optimum TiR filter length has been discussed by measurement and simulation.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134067686","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
Autonomous vehicle guidance system with infrastructure 自动车辆导航系统与基础设施
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723936
K. Sung, Kyoungwook Min, Ju-Wan Kim, Jung-Dan Choi
{"title":"Autonomous vehicle guidance system with infrastructure","authors":"K. Sung, Kyoungwook Min, Ju-Wan Kim, Jung-Dan Choi","doi":"10.1109/ICSPCS.2013.6723936","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723936","url":null,"abstract":"This paper presents system architecture for autonomous vehicle guidance system with infrastructure. First, we describe an example service of autonomous vehicle guidance with infrastructure. In the service, vehicle drives autonomously based on vehicle mounted sensors. But in special area, the vehicle gets sensor data from infrastructure for safety and accuracy. Second, we design and propose system architecture for autonomous vehicle guidance with infrastructure. We design hardware for autonomous driving with minimal vehicle sensors. And, we also propose software blocks to process sensor data from infrastructure system and vehicle sensors. Finally, we implement the test system and show the feasibility test.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133960977","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
Performance analysis of a time headway based rate control algorithm for VANET safety applications 基于车头时距的VANET安全控制算法的性能分析
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723983
M. Javed, J. Khan
{"title":"Performance analysis of a time headway based rate control algorithm for VANET safety applications","authors":"M. Javed, J. Khan","doi":"10.1109/ICSPCS.2013.6723983","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723983","url":null,"abstract":"Vehicular ad hoc network is considered as an integral part of the future intelligent transportation system. As the number of applications which are supported by the vehicular communication grow, the efficient utilization of the control channel and congestion control become important issues. The periodic broadcast of basic safety messages (BSM) by the vehicles consumes most of the control channel interval, leaving less transmission capacity for other types of traffic. To accommodate the data packets from other safety and non-safety applications, the packet transmission rate of BSM must be controlled without compromising the safety of the vehicles. In this paper, we present a BSM generation rate control algorithm based on the measured time headway of the vehicles. The performance analysis shows that the proposed rate control algorithm reduces the channel utilization and improves the BSM reception ratio at different vehicle densities and vehicle speeds. Moreover, the proposed rate control algorithm effectively reduces the notification time of a multi-hop warning message.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"85-86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131743561","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: 14
A robust acquisition architecture for GPS safety-of-life L5 Signal GPS生命安全L5信号的鲁棒采集架构
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723918
T. Nguyen, T. H. Ta
{"title":"A robust acquisition architecture for GPS safety-of-life L5 Signal","authors":"T. Nguyen, T. H. Ta","doi":"10.1109/ICSPCS.2013.6723918","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723918","url":null,"abstract":"The new GPS L5 signal with advanced characteristics in the signal structure is dedicated for safety-of-life applications that have strict requirements on accuracy, availability and integrity. To cope with this new signal, GPS receivers need to be upgraded with new signal processing blocks. This paper presents a robust acquisition architecture suitable for the L5 signal. The architecture can be considered as a combination of the Cross Ambiguity Function based; the energy-based; and the multiple channel acquisition methods.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124425534","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
Affine invariant matching based on orientation estimation 基于方向估计的仿射不变匹配
2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723973
Christopher Le Brese, J. Zou
{"title":"Affine invariant matching based on orientation estimation","authors":"Christopher Le Brese, J. Zou","doi":"10.1109/ICSPCS.2013.6723973","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723973","url":null,"abstract":"In recent years several algorithms have been developed that allow feature matching methods to operate on images with large baseline variations such as Affine-Scale Invariant Feature Transform (ASIFT) and its variants. These algorithms solve the base line problem through simulating various potential transforms between image pairs. These simulated views may be easier to match using traditional feature matching algorithms than the original wide baseline views. This paper presents a novel approach to approximating the orientation between wide baseline views. The proposed method tentatively matches affine invariant regions, normalizes and aligns the regions using whitening transforms to produce an affine transform for the scene. To increase efficiency, edge pixels are utilized rather than correlating regions. Results show that the proposed method is able to match scenes containing up to 80 degrees in vertical and horizontal perspective change. The method is superior to state-of-the-art ASIFT algorithms in terms of execution time.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126130685","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信