QUASI-CYCLIC LDPC CODE

graphs [16]. However, connections may vary from vertex tovertex and from graph to graph. All connection rules needto be stored in hardware. Quasi-cyclic LDPC codes are onetype of codes in which a group of rows or columns has simi-lar connections defined by shifts. These codes can be imp[r]

  Two consecutive number differ in only 1 bit (distance = 1) Why do we use the gray code ?. 8/13/13 15 1.8 Error Detection Code Error Correction Code Dr. Le Dung - School of Electronics and Telecommunications Page 29   Error ?   Error Control: Error Detection and Error Correc[r]

has four neurons in their hidden layer and one neuronin the output layer, each layer with a hyperbolic tangentsigmoid transfer function. The inputs to each network arethe concatenated profile vectors. A system diagram for thisfirst stage is given in Figure 8.The BPSK and ASK signals demonstrate identi[r]

fixed nor are they multiple. Fourier coefficients are defined for periodic signals, but the sum of periodic components not harmonically related is no longer periodic. The third difficulty is that frequencies of contributions are overlapped. Fortunately, characteristic frequencies (resonance and blad[r]

(a) (b) Fig. 10. The picture of experimental apparatus CQ-1.5 (a) and its load area including sample and measuring probe (b). Fig. 11. shows the typical loading pressure histories. The pressure is a ramp wave. Fig. 11. The loading pressure histories of CQ-1.5 4. MHD simulation of metallic foil ele[r]

(a) (b) Fig. 10. The picture of experimental apparatus CQ-1.5 (a) and its load area including sample and measuring probe (b). Fig. 11. shows the typical loading pressure histories. The pressure is a ramp wave. Fig. 11. The loading pressure histories of CQ-1.5 4. MHD simulation of metallic foil ele[r]

trong việc xây dựng mã khối tuyến tính cũng như kỹ thuật mã hóa và giải mã về cơ bản đã được hoàn thiện vào thập kỷ 70 của thế kỷ 20. Tuy nhiên những nghiên cứu trong việc tìm ra các cấu trúc đại số mới vẫn tiếp tục được tiến hành góp phần hoàn thiện thêm lý thuyết mã và mở ra những ứng dụng hiệu qu[r]

the rank criterion trivial by ensuring with proper precodingor constellation rotation that no element in the diagonal be-comes zero while taking the difference of two distinct code-words. A similar idea has been presented before in [20]forrotated binary phase shift keying (BPSK) modulation.Rat[r]

treatment of acute organ rejection and graft-vs host-disease. Furthermore, MEDI-507 is also investigated forautoimmune and other inflammatory diseases. Antibodiesare susceptible to enzymatic degradation and hence posea challenge for formulation and delivery. To circumventthis problem, one approach is[r]

gồm những dòng code nằm giữa dòng If (StudentPassmark > 75) then và else. Còn phần B gồm những dòng code nằm giữa dòng else và end if. Ta có thể ráp chữ ELSE với chữ IF để dùng như trong thí dụ sau đây: < 4If (StudentPassmark > 75) Then EnrollStudentAtPublicSchool[r]

monic n.s. functions in D and let w : supu∈Fu.Ifw is Lebesgue measurableand w∈L1locD, then w is K-quasi-nearly subharmonic resp., K-quasi-nearlysubharmonic n.s. in D.vi If u : D → −∞, ∞ is quasi-nearly subharmonic n.s., then either u ≡−∞or u isfinite almost everywhere[r]

of cyclic motion is time varying. Over a period of time, cyclic motion will cover a bandof frequencies while periodic motion covers only a single frequency or at most a verynarrow band of frequencies.Most of the time, the attention of a person can be characterized by his/her headorient[r]

ourselves to the high risk of falling into locally optimal results.3.5.1 MATLAB Program NotesOptimization software is quite common. The MATLAB functionfminunc.m, for unconstrained minimization, part of the Optimization Tool-box, is the one used for the quasi-Newton gradient-based methods. Ith[r]

ourselves to the high risk of falling into locally optimal results.3.5.1 MATLAB Program NotesOptimization software is quite common. The MATLAB functionfminunc.m, for unconstrained minimization, part of the Optimization Tool-box, is the one used for the quasi-Newton gradient-based methods. Ith[r]

varying systems and cyclostationary time series, the exposition here is probabilistic and focuses ondiscrete-time signals and systems, with emphasis on their second-order statistical characterizationand their applications to signal processing and communications.The material in the remaining sections[r]

Resonance Properties of Scattering and Generation of Waves on Cubically Polarisable Dielectric Layers 73. Quasi-homogeneous electromagnetic fields in a transversely inhomogeneousnon-linear dielectric layered structure and the excitation by wave packetsThe scattered and generated field in a tran[r]

ourselves to the high risk of falling into locally optimal results.3.5.1 MATLAB Program NotesOptimization software is quite common. The MATLAB functionfminunc.m, for unconstrained minimization, part of the Optimization Tool-box, is the one used for the quasi-Newton gradient-based methods. Ith[r]