ofdm信道特性 Channel transmission simulator Channel transmission simulator ％ ％ inputs: ％ sig2 - noise variance ％ Mt - number of Tx antennas ％ Mr - number of Rx antennas ％ x - vector of complex input symbols (for MIMO, this is a matrix, where each column ％ is the value of the antenna outputs at a single time instance) ％ H - frequency selective channel - represented in block-Toeplitz form for MIMO transmission ％ N - number of symbols transmitted in OFDM frame ％ ％ outputs: ％ y - vector of channel outputs (matrix for MIMO again, just like x matrix) ％ create noise vector sequence (each row is a different antenna, each column is a ％ different time index) note: noise is spatially and temporally white
標簽： transmission simulator Channel inputs
上傳時間： 2016-07-22
上傳用戶：kelimu
16點FFT VHDL源程序，The xFFT16 fast Fourier transform (FFT) Core computes a 16-point complex FFT. The input data is a vector of 16 complex values represented as 16-bit 2’s complement numbers – 16-bits for each of the real and imaginary component of a datum.
上傳時間： 2013-12-20
上傳用戶：yph853211
There are several problems related to the properties of the triangular mesh representation that describes a surface of an object. Sometimes, the surface is represented just as a set of triangles without any other information and the STL file format, which is used for data exchanges, is a typicalexampl e of this situation.
標簽： representation properties triangular the
上傳時間： 2014-11-12
上傳用戶：colinal
function [U,V,num_it]=fcm(U0,X) ％ MATLAB (Version 4.1) Source Code (Routine fcm was written by Richard J. ％ Hathaway on June 21, 1994.) The fuzzification constant ％ m = 2, and the stopping criterion for successive partitions is epsilon =??????. ％*******Modified 9/15/04 to have epsilon = 0.00001 and fix univariate bug******** ％ Purpose:The function fcm attempts to find a useful clustering of the ％ objects represented by the object data in X using the initial partition in U0.
標簽： fcm function Version Routine
上傳時間： 2014-11-30
上傳用戶：二驅蚊器
Points in Euclidean space, implemented as double[].Includes simple geometric operations.Uses matrices a matrix is represented as an array of Pnts
標簽： implemented operations Euclidean geometric
上傳時間： 2014-01-05
上傳用戶：xiaoxiang
Functions are mappings from one Manifold to another. Discrete Functions are functions which can be represented using a finite number of values. Given the finite extent of computer memory, algorithms which compute a function that satisfies some special properties are computing a discrete function which approximates a continuous function. Computing the function involves writing a set of equations that may be solved for the values representing the function.
標簽： Functions are functions Discrete
上傳時間： 2017-08-05
上傳用戶：671145514
The task in this assignment is to implement an airline routing system. Your system should be able to read in a ight network as a graph from a le, where airports are represented as vertices and ights between airports are represented as edges, take as input two airports and calculate the shortest route (ie path) between them.
標簽： system assignment implement airline
上傳時間： 2017-09-07
上傳用戶：kiklkook
Particle swarm optimization (PSO) was originally designed and introduced by Eberhart and Kennedy (Ebarhart, Kennedy, 1995 Kennedy, Eberhart, 1995 Ebarhart, Kennedy, 2001). The PSO is a population based search algorithm based on the simulation of the social behavior of birds, bees or a school of fishes. This algorithm originally intends to graphically simulate the graceful and unpredictable choreography of a bird folk. Each individual within the swarm is represented by a vector in multidimensional search space.
標簽： optimization introduced originally and
上傳時間： 2017-09-08
上傳用戶：hoperingcong
This thesis is about wireless communication in shared radio spectrum. Its origin and motivation is ideally represented by the two quotations from above. In this thesis, the support of Quality-of-Service (QoS) in cognitive radio networks is analyzed. New approaches to distributed coordination of cognitive radios are developed in different spectrum sharing scenarios. The Wireless Local Area Network (WLAN) 802.11 proto- col of the Institute of Electrical and Electronics Engineers (IEEE) (IEEE, 2003) with its enhancement for QoS support (IEEE, 2005d) is taken as basis. The Medium Access Control (MAC) of 801.11(e) is modified to realize flexible and dynamic spectrum assignment within a liberalized regulation framework.
標簽： Quality-of-Service Distributed Support
上傳時間： 2020-05-27
上傳用戶：shancjb
The “bottom-line” metrics of cash flow, demand, price, and return on investment are driven by a second set of financial metrics represented by value to the customer, cost, and the pace of innovation. Get them right relative to competition and impressive bottom-line results should follow. Because of their importance, we call value to the customer, variable cost, and the pace of innovation the “fundamental metrics.”
標簽： Planning Product Systems Driven Value and
上傳時間： 2020-06-06
上傳用戶：shancjb
