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2012 International Conference on Computational Problem-Solving (ICCP)最新文献

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Recognition of the phase-encoded signal based on time-frequency curve analysis 基于时频曲线分析的相位编码信号识别
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384282
Kai Zheng, Shiqi Cao, Xiandong Meng, Caijun Pan, Zhiming He
{"title":"Recognition of the phase-encoded signal based on time-frequency curve analysis","authors":"Kai Zheng, Shiqi Cao, Xiandong Meng, Caijun Pan, Zhiming He","doi":"10.1109/ICCPS.2012.6384282","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384282","url":null,"abstract":"The paper studies the recognition of BPSK and QPSK signal based on phase unwrapping and time-frequency curve analysis. First it proposed a phase unwrapping method, then get the time-frequency curve of radar signal and recognize the two phase-encoded signals through curve analysis, peak detection and amplitude comparison. At last, this method is simulated and analyzed. According to the simulation results, this method is effective.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133825002","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
An Auction-theoretic Spectrum Leasing Scheme for Cognitive Radio Networks 一种基于拍卖理论的认知无线网络频谱租赁方案
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384264
Yao Zhang, S. Leng, M. Zeng
{"title":"An Auction-theoretic Spectrum Leasing Scheme for Cognitive Radio Networks","authors":"Yao Zhang, S. Leng, M. Zeng","doi":"10.1109/ICCPS.2012.6384264","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384264","url":null,"abstract":"In recent years, Dynamic spectrum leasing (DSL) strategies are studied as a new paradigm for dynamic spectrum sharing (DSS) in cognitive radio networks (CRN's). In traditional spectrum leasing model, the cooperative Secondary Users (SUs) use higher power to transmit their own packets but a lower power to relay the packets of primary user. On the other hand, many existing research work can be characterized by a model with one Primary User (PU) and multiple SUs, or alternatively, the model with multiple PUs and one SU. The optimal results from these studies are only either in favor of PUs or in favor of SUs. This paper proposes a novel spectrum leasing model, in which a PU leases its vacant bandwidth for a fraction of time to the SUs in exchange for its cooperation. We consider the modeling of dynamic spectrum sharing in the market with multiple strategic PUs and SUs. In this new model, it is assumed that SUs use the same power to transmit their own packets and relay the packets of PUs. The SUs can adapt their transmitting power according to the spectrum competition results. Moreover, we study the optimization of the spectrum leasing in terms of not only the utility of secondary network, or the utility of primary network, but also the utility of the entire network including Pus and SUs. Finally, the simulation results validate the satisfied performance of the proposed spectrum leasing scheme.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126307579","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
Optimal sensing-deception strategy with fading in cognitive radio networks 认知无线电网络中最优感知欺骗策略
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384233
Qihang Peng, Dingyong Hu, Q. Peng, P. Cosman, L. Milstein
{"title":"Optimal sensing-deception strategy with fading in cognitive radio networks","authors":"Qihang Peng, Dingyong Hu, Q. Peng, P. Cosman, L. Milstein","doi":"10.1109/ICCPS.2012.6384233","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384233","url":null,"abstract":"The optimal sensing-deception strategy by a power-limited intelligent adversary of a cognitive radio network is analyzed in this paper. The average number of false detections of the secondary users is maximized when the adversary employs noise spoofing signals, and each such signal experiences multipath-induced fading. The global optimal solution to what turns out to be a nonlinear, non-convex optimization is obtained through a two-step transformation. Numerical results show that, under i.i.d. Rayleigh fading, the optimal sensing-deception strategy for the adversary corresponds to equal-power, partial-band spoofing.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130349338","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
2.4GHz/5GHz wide-band receiver in a wireless communication system based on 4×4 MIMO technology 基于4×4 MIMO技术的无线通信系统2.4GHz/5GHz宽带接收机
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384324
Zhen Wang, Lianfu Liu, Jingye Cai, Z. Shao, Yuanwang Yang, Xueyong Zhu
{"title":"2.4GHz/5GHz wide-band receiver in a wireless communication system based on 4×4 MIMO technology","authors":"Zhen Wang, Lianfu Liu, Jingye Cai, Z. Shao, Yuanwang Yang, Xueyong Zhu","doi":"10.1109/ICCPS.2012.6384324","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384324","url":null,"abstract":"This paper presents a wide-band receiver at 2.4GHz and 5GHz for 4×4 MIMO wireless communication system. This design is proposed and realized using super heterodyne architecture solution. Dual conversion structure is used in this receiver system. The receiver benefits from RF part, control part and phase shifter part. The carrier of this transceiver is 1.82GHz and 4.42GHz, and the local oscillation providing carrier mainly consists of PLL and DDS. Both 70MHz and 580MHz are intermediate frequency of the receiver, which have 8MHz and 150MHz pass-band channel respectively. The developed receiver is used for field experiments in outdoor wireless communications. The measurement result shows that this receiver developed works well.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116448618","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
All the modes in a layered medium background truncated by a PML backed with a PEC 层状介质背景中的所有模式都被带有PEC的PML截断
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384226
Chao Liu, Houxing Zhou, Q. Tang, W. Hong
{"title":"All the modes in a layered medium background truncated by a PML backed with a PEC","authors":"Chao Liu, Houxing Zhou, Q. Tang, W. Hong","doi":"10.1109/ICCPS.2012.6384226","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384226","url":null,"abstract":"In this paper, an accurate method for determining all the modes in a layered medium background truncated at top by a perfectly matched layer (PML) backed with a perfectly electric conductor (PEC) is proposed. Adding a PML backed with a PEC makes the Green's functions for a layered medium background can be expanded with the discrete set of the eigenmodes, avoiding numerically calculating the Sommerfeld integrals when the spectral Green's functions are inversed into the spatial domain. However, it is essential to accurately determine the desired modes and to accurately calculate the corresponding residues. In this paper, the tracking all the mode poles by using consecutive perturbation on the PML's complex thickness is established. With this method, all the mode poles in a layered medium parallel plate waveguide with a PML can be accurately located, and the corresponding residues can also be accurately calculated without any contour integral. Some numerical examples are provided in the paper to demonstrate the efficiency and accuracy of the proposed method.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121454767","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
Network coding based routing scheme for resource constrained delay tolerate networks 基于网络编码的资源约束容忍延迟网络路由方案
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384268
Chunzhi He, Ning Huang, G. Feng
{"title":"Network coding based routing scheme for resource constrained delay tolerate networks","authors":"Chunzhi He, Ning Huang, G. Feng","doi":"10.1109/ICCPS.2012.6384268","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384268","url":null,"abstract":"Supporting effective and efficient data delivery in delay tolerant networks (DTNs) is a challenging problem due to the nature of the network. In this paper, we propose to use network coding technique based on Growth Code to improve the performance of data delivery in DTNs. We incorporate Growth Codes into Epidemic Routing and First Contact routing in DTNs to provide two network coding based routing algorithms, namely Growth Code based Epidemic Routing scheme and Growth Code based First Contact routing scheme, aiming to achieve high delivery rate, low delivery delay and low average energy consumption in DTNs with constrained buffer resources and low computation capability. We validate the effectiveness and advantages of our proposed algorithms by simulation experiments based on the Opportunistic Network Environment simulator. Numerical results show that Growth Code based Epidemic Routing scheme can achieve a good tradeoff performance among delivery rate, delivery delay and average energy consumption. When the buffer resources at DTN nodes are constrained, the benefits of Growth Code based Epidemic Routing scheme is more significant. On the other hand, when the resource constraint is loose, Growth Code based First Contact routing scheme can achieve better data delivery performance.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117179655","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: 4
Single-precision LU decomposition based on FPGA compared with CPU 基于FPGA的单精度LU分解与CPU的比较
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384247
Bao Fang, Shuqiang Chen, Xulong Wei
{"title":"Single-precision LU decomposition based on FPGA compared with CPU","authors":"Bao Fang, Shuqiang Chen, Xulong Wei","doi":"10.1109/ICCPS.2012.6384247","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384247","url":null,"abstract":"FPGA (field programmable gate array) has become an effective way to accelerate the numerical computing. In this paper, we proposed an architecture for small matrix single-precision LU decomposition based on FPGA and show the resource utilization of this design. We also present a novel structure for block multiply in block LU decomposition for large size matrix. The speed of this novel structure will be faster than implemented in general matrix multiplication in block LU decomposition. Our implementation on a Xilinx Virtex-6 XC6VLX240T can speed 2x compared with floating-point LU with MKL on Core-i3.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123185550","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 power supply design based on LT3748 一种基于LT3748的电源设计
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384322
Guixian Cheng, Z. Shao, Lianfu Liu, Yuanwang Yang
{"title":"A power supply design based on LT3748","authors":"Guixian Cheng, Z. Shao, Lianfu Liu, Yuanwang Yang","doi":"10.1109/ICCPS.2012.6384322","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384322","url":null,"abstract":"This paper describes in detail how to select components of the peripheral circuits of LT3748. In this paper, the LT3748 is introduced to produce an 8Vout at 3A from the nominal input voltage -48V with an operating input voltage range of -38.4V to -72V, where -48V is a common telecommunications equipment voltage. The test results show the output voltage and the current meet the demand of the project and the efficiency of the circuit is about 70%.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116878019","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
Design and implementation of 3M–5GHz wide-band MIMO transmitter 3M-5GHz宽带MIMO发射机的设计与实现
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384323
Liang Zhao, Lianfu Liu, Z. Shao
{"title":"Design and implementation of 3M–5GHz wide-band MIMO transmitter","authors":"Liang Zhao, Lianfu Liu, Z. Shao","doi":"10.1109/ICCPS.2012.6384323","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384323","url":null,"abstract":"As the development of wireless communication, people put forward higher requirements on wireless transceiver system. MIMO technology is a major breakthrough in the field of wireless communication and it can greatly increase the channel capacity and spectrum efficiency without expanding bandwidth. This paper works on the design, development and test of a MIMO transmitter which supports four transmit and four receive antennas scheme. The platform is designed by functional modules, which contain RF part, control part, phase shifter part. After the construction of the hardware platform, the MIMO transmitter system is tested, which verifies that each module of the platform works properly. At last, the tests above also validate the rightness of the system design and the usability of the transmitter.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124045909","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
Detection performance analysis on a new multi-cycle FSK/PSK signal 一种新型多周期FSK/PSK信号的检测性能分析
2012 International Conference on Computational Problem-Solving (ICCP) Pub Date : 2012-12-24 DOI: 10.1109/ICCPS.2012.6384280
Shiqi Cao, Kai Zheng, Xiandong Meng, Caijun Pan, Zhiming He
{"title":"Detection performance analysis on a new multi-cycle FSK/PSK signal","authors":"Shiqi Cao, Kai Zheng, Xiandong Meng, Caijun Pan, Zhiming He","doi":"10.1109/ICCPS.2012.6384280","DOIUrl":"https://doi.org/10.1109/ICCPS.2012.6384280","url":null,"abstract":"As there is a restriction in coding length selection when using the original phase-encoded and frequency-hopped signals to compose a single-cycle FSK/PSK signal, a new method for generation of a multi-cycle FSK/PSK signal is proposed which allowed selecting the coding sequences of all length. The ambiguity function expression of this type of signal is derived. The distance and speed resolution has been analyzed and simulated. The LPI performance is also been analyzed theoretically in this paper. The result shows that this type of signal has an ambiguity function close to the ideal “thumbtack” ambiguity function and has a good performance on distance and velocity resolution, and the LPI performance is significantly improved.","PeriodicalId":321908,"journal":{"name":"2012 International Conference on Computational Problem-Solving (ICCP)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122816874","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
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