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2012 26th Biennial Symposium on Communications (QBSC)最新文献

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Absorbing sets of Fountain codes over noisy channels 在噪声信道上吸收喷泉代码集
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221348
S. M. Mirrezaei, K. Faez, S. Yousefi
{"title":"Absorbing sets of Fountain codes over noisy channels","authors":"S. M. Mirrezaei, K. Faez, S. Yousefi","doi":"10.1109/QBSC.2012.6221348","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221348","url":null,"abstract":"Although error-prone patterns have been extensively studied for low-density parity-check (LDPC) codes, to the best of our knowledge, they have never been fully explored for Fountain codes. It is shown that dominant trapping sets of Fountain codes are the absorbing sets. They happen in the so-called error floor, corresponding to a significant flattening in the error probability curves. In this paper, we introduce the properties of these dominant trapping sets for Fountain codes. This definition of absorbing sets leads to better design of practical finite-length Fountain encoders and decoders.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128200331","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
Faster than Nyquist broadcast signaling 比奈奎斯特广播信号快
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221379
Yong Jin Daniel Kim, J. Bajcsy
{"title":"Faster than Nyquist broadcast signaling","authors":"Yong Jin Daniel Kim, J. Bajcsy","doi":"10.1109/QBSC.2012.6221379","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221379","url":null,"abstract":"In this work, we propose using Faster than Nyquist (FTN) signaling to achieve transmission over continuous-time Gaussian broadcast channel. In the FTN broadcasting, different users' messages are completely separated in the coding stage; hence removing the joint encoding that is typically needed in the previously proposed broadcast channel coding schemes. Furthermore, users' data symbols are explicitly and separately transmitted over the channel using the FTN signaling; thus, alleviating the definition of auxiliary random variables used in the broadcast channel coding theorems. This work shows that the FTN broadcast signaling allows achieving the capacity boundaries of the Gaussian broadcast channel. This implies that FTN can be a viable alternative to the standard capacity-achieving techniques considered in discrete-time Gaussian broadcast channel, i.e., superposition coding and dirty paper coding.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131925489","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: 8
Viability of powerline communication for the smart grid 智能电网电力线通信的可行性
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221343
Fariba Aalamifar, Hossam S. Hassanein, G. Takahara
{"title":"Viability of powerline communication for the smart grid","authors":"Fariba Aalamifar, Hossam S. Hassanein, G. Takahara","doi":"10.1109/QBSC.2012.6221343","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221343","url":null,"abstract":"There is currently an ongoing debate surrounding what would be the best choice for smart grid communication technology. One of the promising communication technologies for smart grid realization is Powerline Communication (PLC). However, because of its noisy environment and the low capacity of Narrowband Powerline Communication, its viability for smart grid realization is being questioned. To investigate this issue, we studied smart grid communication network requirements. We categorize smart grid data traffic into two general traffic classes including home area network data traffic and distribution automation data traffic. Then using network simulator-2, we simulate powerline communication and a smart grid communication network. To have a better understanding of the viability of powerline communication for smart grid realization, some future smart grid advanced applications are considered. Latency and reliability are considered to be the main smart grid communication network requirements. In this paper, the delay of different traffic classes under different network infrastructures and traffic applications have been calculated. Furthermore, a viable powerline communication network infrastructure for smart grid communication network is proposed.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115434960","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: 53
Power and cost reduction in optical transport networks by Multi-Granular switching with optical reach consideration 考虑光到达的多粒度交换降低光传输网络的功耗和成本
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221354
N. Naas, B. Kantarci, H. Mouftah
{"title":"Power and cost reduction in optical transport networks by Multi-Granular switching with optical reach consideration","authors":"N. Naas, B. Kantarci, H. Mouftah","doi":"10.1109/QBSC.2012.6221354","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221354","url":null,"abstract":"Multi-Granular (MG) switching concept has emerged as a strong candidate to alleviate the scalability problems of the conventional optical switching that will result from the expected exponential traffic growth in the optical transport networks. On the other hand, this tremendous increase in the bandwidth demands will also introduce the energy bottleneck in the transport networks. Furthermore, significant contribution of the telecommunication networks to the Greenhouse Gas Emissions (GGE) has appeared as another challenge to be met in network design and planning policies. In this paper, considering the benefits of MG switching in the optical backbone, we study the benefit of employing the MG switching concept in the transport networks in terms of energy savings. Under various scenarios, our numerical results present realistic design specifications for MG optical transport networks by efficiently integrating the optical reach limitation into the design and planning problem.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129450792","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
Relationship between the maximum likelihood emitter location estimators based on received signal strength (RSS) and received signal strength difference (RSSD) 基于接收信号强度(RSS)和接收信号强度差(RSSD)的最大似然发射极位置估计的关系
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221353
Sichun Wang, R. Inkol, B. Jackson
{"title":"Relationship between the maximum likelihood emitter location estimators based on received signal strength (RSS) and received signal strength difference (RSSD)","authors":"Sichun Wang, R. Inkol, B. Jackson","doi":"10.1109/QBSC.2012.6221353","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221353","url":null,"abstract":"Under the assumption of a log-normal path loss model, maximum likelihood (ML) emitter location estimators are derived for both received signal strength (RSS) and received signal strength difference (RSSD) information. It is then shown that these ML estimators are identical, contrary to the seemingly common perception that the RSS-based ML location estimator should outperform the RSSD-based ML location estimator. The Cramer-Rao lower bounds (CRLB) for the average miss distance are also shown to be identical. Using the least squares estimation criterion, a non-linear least squares (NLS) emitter location estimator is also formulated in this paper for comparison. These theoretical developments are illustrated by computer simulation experiments.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128351069","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: 19
Hybrid RSS/AOA emitter location estimation based on least squares and maximum likelihood criteria 基于最小二乘和最大似然准则的混合RSS/AOA发射器位置估计
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221344
Sichun Wang, B. Jackson, R. Inkol
{"title":"Hybrid RSS/AOA emitter location estimation based on least squares and maximum likelihood criteria","authors":"Sichun Wang, B. Jackson, R. Inkol","doi":"10.1109/QBSC.2012.6221344","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221344","url":null,"abstract":"Linear least squares (LS) and maximum likelihood (ML) estimators are derived for emitter geolocation using both received signal strength (RSS) and angle of arrival (AOA) information obtained from an heterogeneous sensor array. The results of simulation experiments provide useful insights into the behavior of these hybrid approaches and demonstrate that the use of simple RSS sensors to augment traditional AOA sensors can significantly improve the attainable geolocation accuracy.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125613613","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: 58
Transmit rate reduction of Wyner-Ziv video coding (WZVC) using multiple uncorrelated wireless receivers 利用多个不相关无线接收器降低WZVC视频编码的传输速率
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221376
K. Thambu, Xavier N Fernando, L. Guan
{"title":"Transmit rate reduction of Wyner-Ziv video coding (WZVC) using multiple uncorrelated wireless receivers","authors":"K. Thambu, Xavier N Fernando, L. Guan","doi":"10.1109/QBSC.2012.6221376","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221376","url":null,"abstract":"Wyner-Ziv video coding (WZVC) is very attractive for low power wireless video sensors. In this paper we show that how the transmission bit-rate of WZVC can be further reduced when multiple uncorrelated wireless receiving points are deployed at the decoder. This is different from classical SIMO in the sense of cross layer coding is deployed. When the wireless channel degrades, decoder is fed with an optimum parities from the available parities to find the one that enables successful decoding. The optimum parity is computed from the multiple received signals using a matrix decomposition method, where the video image properties are incorporated with the wireless channel impairments. We compare the video quality (PSNR) with respect to the bit rate and the wireless channel SNR. The simulation results show remarkable improvement of PSNR even at low transmission rate.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131459920","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 of subcarrier intensity modulated MIMO wireless optical communications 副载波强度调制MIMO无线光通信性能
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221340
Xuegui Song, Julian Cheng
{"title":"Performance of subcarrier intensity modulated MIMO wireless optical communications","authors":"Xuegui Song, Julian Cheng","doi":"10.1109/QBSC.2012.6221340","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221340","url":null,"abstract":"We study the error rate of a subcarrier intensity modulated multiple-input multiple-output wireless optical communication system employing phase-shift keying, differential phase-shift keying, and noncoherent frequency-shift keying over the Gamma-Gamma turbulence channels. Closed-form error rate expressions are derived using a series expansion approach. Truncation error analysis and asymptotic error rate analysis are also presented. Our asymptotic analysis shows that the diversity order of the system and the signal-to-noise ratio penalty factors for noncoherent modulations depend only on the smaller channel parameter. Furthermore, the signal-to-noise ratio penalty factors for noncoherent modulations can be improved using multiple-input multiple-output technique.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131742832","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: 10
Cross layer consideration for improved reliability of vehicular safety messaging 提高车辆安全信息可靠性的跨层考虑
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221349
W. G. Cassidy, N. Jaber, K. Tepe
{"title":"Cross layer consideration for improved reliability of vehicular safety messaging","authors":"W. G. Cassidy, N. Jaber, K. Tepe","doi":"10.1109/QBSC.2012.6221349","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221349","url":null,"abstract":"This paper presents a theoretical foundation for a new collision correcting medium access control (MAC) and physical (PHY) cross layer design (CLD) for safety messages in dedicated short range communications (DSRC). The concept relies on repetition messaging and the fact that DSRC safety messages are relatively short in length. Hence our design requires a cache of previously received packets, and pre informed packet repetitions. An example scenario is provided with a step by step description of how our proposed system will behave. Unified modeling language (UML) use case diagram is used to help describe functionality of the CLD. The operation of the collision correcting (CC) channel estimator (CE) and equalizer (EQ) is explained. Simulation results show reception reliability and PER performance is improved when our CLD is used as opposed to standard safety message broadcasting, especially in high repetition scenarios.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130396007","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
Successful IEEE 802.11n 2-channel MIMO transmission over standard graded index multimode fiber in passband 成功的IEEE 802.11n 2通道MIMO传输标准渐变索引多模光纤在通带
2012 26th Biennial Symposium on Communications (QBSC) Pub Date : 2012-05-28 DOI: 10.1109/QBSC.2012.6221342
L. Maksymiuk, J. Siuzdak
{"title":"Successful IEEE 802.11n 2-channel MIMO transmission over standard graded index multimode fiber in passband","authors":"L. Maksymiuk, J. Siuzdak","doi":"10.1109/QBSC.2012.6221342","DOIUrl":"https://doi.org/10.1109/QBSC.2012.6221342","url":null,"abstract":"We present a successful transmission of an IEEE 802.11n 2×2 Multiple Input - Multiple Output radio signal over standard graded index multimode fiber at several kilometers length. For the first time commercially available Access Points were used in the MIMO over multimode fiber experiment. Transmission was carried above the baseband of the multimode fiber (in passband), the electrical carrier was at 2.4 GHz. The experiment indicated an increase in the bitrates in the MIMO mode versus single channel operation. It has to be emphasized we have measured a real payload bitrate of the system.","PeriodicalId":343966,"journal":{"name":"2012 26th Biennial Symposium on Communications (QBSC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132636036","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
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