Bổ sung sửa chữa bằng cách kiểm tra trực quan của đồ thị Scree, cho thấy giá trị riêng là một lựa chọn được sử dụng để tạo ra các kết quả được trình bày trong phần tiếp theo. Sau khi dự toán của các τi các thông số, chúng ta có thể xác định 'lái' tương ứng với ma trận, Aτ. | WIRELESS MIMO LAN ENVIRONMENTS GHz 67 additional correction by visual inspection of the Scree Graph showing that the eigenvalue is an option used for generating the results presented in the sequel. After estimation of the parameters Ti we can determine the corresponding steering matrix Ar. Subsequent beamforming with its Moore-Penrose pseudoinverse 34 53-56 A gives the vector of delay-weights for all XR XT hr XT Xr A Tf XT Xr where Ty is the vector of transfer coeffcients at the 192 frequency sub-bands sounded. This gives us the transfer ppetfcientsPrpm all toallpesrtionsxnsepMately for each delay Ti. Thus one dimension namely the frequency has been replaced by the parameterized version of its dual the delays. Forthe of thedirection of arrives DOA in each ofthetwo-dimensional transfer SPI T hearnlomimghy thedeeudo-inverse are used hilrtXi AJr 33-37 Finally for the direction of departure DOD we have hpT t ự A ThYT tí ự Figw. irhi-ttatosrhesesteps. Theprocotoe Fverus rhe number andparornvrereol rhe . ii-n vo hmh DOAeon bcotaetoed at these delays and which DOD corresponds to each DOA ppa S teriiìcde ee . . wealso otamhio pcwere 01 rim mehh patorhanneli SMPCs .One m-ipoi-ianr n procedure is the sequence in which the evaluation is performed. Roughly speaking the number of MPCs that can be estimated Fs the number of samples we have at our disposal. 68 CHANNEL MODELING FOR 4G Capacity computation In a fading channel the capacity is a random variable depending on the local or instantaneous channel realization. In order to determine the cdf of the capacity and thus the outage capacity we would have to perform a large number of measurements either with slightlydisplaced arrays or with temporallyvarying scatterer arrangement. Since each single measurement requires a huge effort such a .
