2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications最新文献_第10页

Optimum Goodput-Oriented Power Allocation Policy for BIC-OFDM Packet Transmissions 面向good - put的最优BIC-OFDM分组传输功率分配策略

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.100

I. Stupia, L. Vandendorpe, J. Louveaux, F. Giannetti, V. Lottici, N. D'Andrea

引用次数: 0

A New SCFDE STS Scheme with Joint Channel Estimation and Multiuser Detection 一种联合信道估计和多用户检测的SCFDE STS新方案

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.54

K. Acolatse, Y. Bar-Ness

引用次数: 0

ARQ with Doped Fountain Decoding ARQ与掺杂喷泉解码

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.152

S. Kokalj-Filipovic, P. Spasojevic, E. Soljanin, R. Yates

{"title":"ARQ with Doped Fountain Decoding","authors":"S. Kokalj-Filipovic, P. Spasojevic, E. Soljanin, R. Yates","doi":"10.1109/ISSSTA.2008.152","DOIUrl":"https://doi.org/10.1109/ISSSTA.2008.152","url":null,"abstract":"We analyze the benefits of an automatic repeat- request (ARQ) scheme employed in doped belief-propagation decoding for increasing the throughput of fountain encoded data transmissions. The proposed doping mechanism selects doping symbols randomly from the set of input symbols contributing to degree-two output symbols. Here an output symbol is the encoded symbol whose code-graph links to input symbols decoded thus far have been severed. This doping approach always ensures releasing of at least one output symbol, thus increasing the number of degree-one output symbols (the ripple). Using a random walk analysis, we study the belief propagation decoding with degree-two random doping for a fountain code with symbols drawn from an Ideal Soliton distribution. We show that the decoding process is a renewal process whereas the process starts all over afresh after each doping. The approximate interdoping process analysis revolves around a random walk model for the ripple size. We model the sequence of the ripple size increments (due to doping and/or decoding) as an iid sequence of shifted and truncated Poisson random variables. This model furnishes a prediction on the number of required doping symbols and, furthermore, the ARQ throughput cost analysis. We also find that the Ideal Soliton significantly outperforms the Robust Soliton distribution in our ARQ-doping scheme.","PeriodicalId":334589,"journal":{"name":"2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications","volume":"351 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131190537","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: 18

Multihop IEEE 802.15.4 Wireless Networks With Finite Node Buffers: Markov Chain-Based Analysis 有限节点缓冲的多跳IEEE 802.15.4无线网络:基于马尔可夫链的分析

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.126

M. Martalò, S. Busanelli, G. Ferrari

{"title":"Multihop IEEE 802.15.4 Wireless Networks With Finite Node Buffers: Markov Chain-Based Analysis","authors":"M. Martalò, S. Busanelli, G. Ferrari","doi":"10.1109/ISSSTA.2008.126","DOIUrl":"https://doi.org/10.1109/ISSSTA.2008.126","url":null,"abstract":"In this paper, we propose a Markov chain-based analytical framework for modeling the behavior of the medium access control (MAC) protocol in IEEE 802.15.4 wireless sensor networks. Two scenarios are of interest. First, we consider networks where the sensor nodes communicate directly to the network coordinator. Then, we consider scenarios where sensor nodes communicate to the coordinator through an intermediate relay node, which forwards the packets received from the sources (i.e., the sensors). In both scenarios, no acknowledgment messages are used to confirm successful data packet deliveries, and communications are beaconed (i.e., they rely on synchronization packets denoted as \"beacons\"). In all considered scenarios, our focus is on networks where the relay and the source nodes have finite queues (denoted as buffers) to store data packets. Network performace is characterized in terms of aggregate network throughput and packet delivery delay. Our results show a very good agreement between the proposed analytical model and realistic ns-2 simulation results. In particular, the impact of the buffer size is accurately taken into account in our model.","PeriodicalId":334589,"journal":{"name":"2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications","volume":"0 0 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132312162","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

A Low Complexity Timing Synchronization and Channel Estimation in OFDM Systems over Multipath Fading Channels 多径衰落信道下OFDM系统的低复杂度定时同步与信道估计

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.123

A. Zahedi, M. Noroozi, H. Bakhshi

引用次数: 0

Efficient SW Design and SW Design Efficiency: Fuel for Software Defined Radios 有效的软件设计和软件设计效率:软件定义无线电的燃料

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.78

L. Van der Perre, M. Glassée, V. Ramon, B. Bougard, H. Cappelle, S. De Rore, A. Dewilde, A. Folens, R. Vandebriel, T. Van Der Aa

引用次数: 1

Analysis of Radio Propagation in Co- and Cross-Polarization in Urban Environment 城市环境下共极化和交叉极化无线电传播分析

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.56

E. Vitucci, V. Kolmonen, V. Degli‐Esposti, P. Vainikainen

引用次数: 14

New L5/E5a Acquisition Algorithms: Analysis and Comparison 新的L5/E5a采集算法:分析与比较

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.16

D. Borio, C. Mongredien, G. Lachapelle

{"title":"New L5/E5a Acquisition Algorithms: Analysis and Comparison","authors":"D. Borio, C. Mongredien, G. Lachapelle","doi":"10.1109/ISSSTA.2008.16","DOIUrl":"https://doi.org/10.1109/ISSSTA.2008.16","url":null,"abstract":"To respond to the ever-increasing demand for high accuracy position and location services, the new ranging signals broadcast by the modern and modernized Global Navigation Satellite Systems (GNSSs) exhibit significant structural innovations. New spreading sequences, data/pilot structures and tiered codes obtained by cascading secondary and primary codes are just a few examples of the innovations introduced to improve measurement accuracy, tracking robustness and tracking sensitivity. However, to fulfill the aforementioned expectations and effectively provide superior navigation solution, new receiver architectures are required. To this end, this paper presents and compares different algorithms, namely non-coherent, semi- coherent, differentially coherent and coherent combining, for the joint acquisition of the data and pilot components of the new composite GNSS signals. Each strategy is detailed from a statistical point of view and a new methodology for the characterization of the false alarm probability for coherent combing is proposed. Theoretical results are supported by Monte Carlo simulations and real data analysis.","PeriodicalId":334589,"journal":{"name":"2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128842884","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

Pilot-Symbol-Aided Channel Estimation with Boosted Pilots for MC-CDMA Systems MC-CDMA系统导频符号辅助信道估计

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.155

M. Al-Quzwini

引用次数: 0

SDR GNSS Receiver Design over Stand-Alone Generic TI DSP Platform 基于独立通用TI DSP平台的SDR GNSS接收机设计

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.14

Jin Tian, Wang Ye, Shih-Chen Lin, Zhang Hua

引用次数: 13