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DirectedDiffusion
this describe the rouring protocol direct diffusion for wireless sensor network
- 2010-02-09 14:38:45下载
- 积分：1
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MATLAB_OFDM
基于MATLAB的OFDM系统仿真及性能分析的一篇论文。内含matlab仿真程序，有循环前缀，信道估计。(OFDM based on MATLAB system simulation and performance analysis of a thesis. Intron Matlab simulation program, cyclic prefix, channel estimation.)
- 2007-06-13 16:08:58下载
- 积分：1
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57
Underwater optical wireless communication
network
- 2013-08-09 23:13:22下载
- 积分：1
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New folder (3)
说明： this folder contains VIs related to USRP.
- 2019-06-08 22:23:44下载
- 积分：1
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Beamformingformovingsourcespeechenhancement
争对移动声源采用波束形成进行语音增强，提出一种约束子带波束形成算法。其波束形成器基于一个软约束，其目的是要使波束指向特定的区域即声源方向。而其核心在于首先要进行声源定位，获得尽量准确的方位信息，然后构造软约束条件，用于波束形成。且在此过程中不断跟踪声源的移动情况。在构造的约束条件中，需要知道声源的二维信息，即与麦克风阵列的距离和方向角，“软”体现在对距离和方向角的确定都是在一定范围内的，有待进一步更正。(Between the mobile sound source using beamforming for speech enhancement, a constrained subband beamforming algorithm. Its beamformer based on a soft constraints, the aim is to make the beam point to a specific region that is the direction of the sound source. And its core is the first to sound source location, access to location information as accurately as possible, and then construct the conditions of soft constraints for beamforming. And in the process continuously tracking the movement of a sound source. Structure at the binding conditions, need to know the two-dimensional sound source information, that is, with the microphone array the distance and direction angle, the " soft" embodied in the distance and direction angle of the determination are within the scope must be further corrected .)
- 2009-03-06 09:22:30下载
- 积分：1
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adaptive modulation and coding
adaptive modulation and coding
- 2020-06-27 04:00:01下载
- 积分：1
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RAYLEIGH
TO PLOT THE RAYLEIGH DISTRIBUTION PLOT
- 2017-05-15 14:35:40下载
- 积分：1
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Ternary-Sequence-Based-OFDM-Frame-Synchro-in-WIFI
In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. Frame
synchronization is an essential procedure for normal operation of
the OFDM system because of sensitivity to synchronization errors. And when there are frequency offsets in OFDM frame, the loss of
orthogonality occurs and the interference problem among several subcarriers is introduced. These fact leads to the requirement for joint implementation of the frame synchronization and frequency offset compensation.
- 2013-10-28 23:31:01下载
- 积分：1
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热分析实例，包含结构，动力学等的实例
热分析实例，包含结构，动力学等的实例，帮你了解ansys的运用(Thermal analysis as an example, structure, dynamics, etc., to help you understand the use of ansys)
- 2013-07-05 23:47:13下载
- 积分：1
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A spectrum sharing method based on ATM
In recent years, the number of portable mobile terminal users is increasing with improvement of the wireless communication environment. In addition, mobile multimedia services also bring the increase of wireless traffic and lack of
spectrum resources. As a technique for efficient spectrum use, spectrum sharing receives much attention. It dynamically assigns a spectrum channel from a larger area network such as WiMAX to smaller area networks such as WiFi-based wireless LANs and achieves to increase the total wireless communication capacity of this area. In a case where all providers are cooperative, the spectrum sharing can be realized easily and improve user throughput in average. In another case where providers are not
cooperative, some spectrum trading methods based on auction theory had been proposed.
- 2018-11-13 17:53:14下载
- 积分：1
