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[Industry research] On the Energy Detection of Unknown Signals Over Fading Channels DL : 0: On the Energy Detection of Unknown Signals Over Fading ChannelsAbstract—This letter addresses the problem of energy detection of an unknown signal over a multipath channel. It starts with the no-diversity case, and presents some alternative closed-form expressions for the probability of detection to those recently reported in the literature. Detection capability is boosted by implementing both square-law combining and square-law selection diversity schemes. Index Terms—Diversity schemes, energy detection, fading channels, low-power applications, square-law detector, unknown signal detection.
Date : 2012-02-22 Size : 170.36kb User : chenpeng3361
[Other] QuantumClonalEvolutionaryAlgorithms DL : 0: 　本文在量子进化算法的基础上结合基于克隆选择学说的克隆算子,提出了改进的进化算法———量子克隆进化策略算法(QCES) . 它既借鉴了量子进化算法的高效并行性又利用克隆算子来代替其中的变异和选择操作,以增加种群的多样性,避免了早熟,且收敛速度快. 本文不仅从理论上证明了该算法的收敛,而且通过仿真实验表明了此算法的优越性.-In this paper, quantum evolutionary algorithm based on the combination of clonal selection theory based on the cloning operator, made an improved evolutionary algorithm--- quantum cloning evolutionary strategy algorithm (QCES). It draws on quantum evolutionary algorithm and also makes use of parallelism and efficient cloning operator to replace one of the variation and selection of operation in order to increase population diversity to avoid premature, and fast convergence. This article is not only theoretically proved that the convergence of the algorithm, and through simulation experiments show the superiority of this algorithm .
Date : 2025-07-02 Size : 193kb User :
[matlab] Chapter3 DL : 0: (书)现代通信系统使用MATLAB第三章-ALLIANCES is a recently proposed cooperative random access protocol for wireless networks. In this paper we modify the original model to include user location information. We also derive pair-wise error probability (PEP) under Rayleigh flat fading channel and a power-law attenuation environment. Based on the PEP analysis we propose an optimal relay selection scheme, which achieves significant throughput gains as compared to the random relay selection scheme in the original ALLIANCES.
Date : 2025-07-02 Size : 20kb User : 史志举
[Communication-Mobile] script_ber_bpsk_rayleigh_channel_selection_divers DL : 0: Script for computing the BER for BPSK modulation in a Rayleigh fading channel with selection diversity -Script for computing the BER for BPSK modulation in a Rayleigh fading channel with selection diversity
Date : 2025-07-02 Size : 1kb User : mohanad1
[matlab] SNR_SelectionDiversity_RayleighFading DL : 0: Selection diversity in a Reyleigh fading channel
Date : 2025-07-02 Size : 1kb User : quy
[MultiLanguage] 01576960Beaulieu DL : 0: 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying in Rayleigh fading, using the Alamouti transmission scheme and receiver selection diversity in the presence of channel-estimation error, is studied. Closed-form expressions for the BER of log-likelihood ratio selection, signal-to-noise ratio (SNR) selection, switchand- stay combining selection, and maximum ratio combining are derived in terms of the SNR and the cross-correlation coefficient of the channel gain and its corrupted estimate. Two new selection schemes, space–time sum-of-squares combining selection diversity and space–time sum-of-magnitudes selection diversity, are proposed and proven to provide almost the same performance as SNR selection, but with much simpler implementations. The effects of channel-
Date : 2025-07-02 Size : 333kb User : 刘小洋
[matlab] ChannelSelectionDiversity DL : 0: For computing the BER for BPSK modulation in a Rayleigh fading channel with selection diversity.
Date : 2025-07-02 Size : 1kb User : smich
[matlab] BPSKwith DL : 0: Script for computing the BER for BPSK modulation in a Rayleigh fading channel with selection diversity- Script for computing the BER for BPSK modulation in a Rayleigh fading channel with selection diversity
Date : 2025-07-02 Size : 1kb User : darrylrex
[Software Engineering] bbbb DL : 0: 摘　要:提出一种新的基于Pareto多目标进化免疫算法(PMEIA)。算法在每一代进化群体中选取最优非支配抗体保存到记忆细胞文档中同时引入Parzen窗估计法计算记忆细胞的熵值,根据熵值对记忆细胞文档进行动更新,使算法向着理想Pareto最优边界搜索。此外,算法基于点在目标空间分况进行克隆选择,有利于得到分布较广的Pareto最优边界,且加快了收敛速度。与已有算法相比, PMEIA在收敛性、多样性,以及解的分布性方面都得到很好的提高。-Abstract:This paperproposed a new pareto-based multi-object evolutionary mi mune algorithm(PMEIA). PMEIA selected optmi alnon-dominated antibodieswhichwere then reserved inmemory cellarchive, and introducedParzenwindow to calculate entropy ofmemory cells. Updated thememory cell archive according to entropy ofmemory cells. This guarantees the conver- gence to the true Pareto fron.t Moreover, the performance of clone selection was dependent on distribution in the objective space, whichwas favorable forgetting awidely spreadPareto frontand mi proving convergence speed. Comparedwith the exis- ted algorithms, the obtained solutions ofPMEIA havemuch betterperformance in the convergence, diversity and distribution.
Date : 2025-07-02 Size : 270kb User : 王飞
[matlab] diversity DL : 0: five script.m for 1. BER in Rayleigh fading channel with MRC 2. BER in Rayleigh fading channel with EGC 3. BER in Rayleigh fading channel with selection 4. BER in Rayleigh fading channel with alamoutistbc 5. BER in Rayleigh fading channel with beamforming
Date : 2025-07-02 Size : 5kb User : ahla
[Other] Performance DL : 0: 选择中继与合作分集的性能分析，IEEE Trans WC 上的paper-Performance of Selection Relaying and Cooperative Diversity，IEEE
Date : 2025-07-02 Size : 260kb User : 圣骑士
[Communication-Mobile] Project3 DL : 0: No diversity, Selection diveristy and Maxmimum ratio combination case.
Date : 2025-07-02 Size : 55kb User : shalini
[Communication-Mobile] diversity DL : 0: 这个程序是三种分集合并方式的比较，选择合并，等增益合并，最大比值合并-This program gives the comparison of improvements offered by the 3 combining techniques, namely Selection Diversity, Equal Gain and Maximal Ratio.
Date : 2025-07-02 Size : 1kb User : 高肉
[matlab] ScriptforcomputingtheSNRimprovementi1 DL : 0: Script for computing the SNR improvement in Rayleigh fading channel with selection diversity
Date : 2025-07-02 Size : 3kb User : moon2012light
[matlab] Selecdiversity DL : 0: simulating BER for BPSK in Rayleigh channel with selection diversity
Date : 2025-07-02 Size : 2kb User : Nandan
[matlab] selection_diversity DL : 0: 接收端选择性多样化，用于优化瑞丽信道的衰落，减少误码率-selection diversity
Date : 2025-07-02 Size : 1kb User : chen
[matlab] selectiondiversity DL : 0: selection diversity MATLAB code
Date : 2025-07-02 Size : 1kb User : fehmida
[Other] selection DL : 0: Field of Digital Communications. Topic: Diversity Combining Matlab Program (m File) for exploiting Receiver Antenna Diversity: Selection Diversity Technique
Date : 2025-07-02 Size : 1kb User : ko
[matlab] BER2PSK-with-selection-diversity DL : 0: 基于selection diversity的bpsk BER 计算与性能分析- computing BER under the selection diversity for BPSK signal
Date : 2025-07-02 Size : 1kb User : fang qian
[matlab] selection-combining-diversity DL : 1: this the selection diversity technique, used for avoiding the effects of fading.-this is the selection diversity technique, used for avoiding the effects of fading.
Date : 2025-07-02 Size : 10kb User : surender redhu

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