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SIGNAL REPRESENTATION AND
MIMO CHANNEL MODELING IN ANGULAR DOMAIN
TEJUS ADIGA M
Angular Decomposition
• L = 2λ. So L/ λ = 2. Where L is the normalized length of the array.
• = L/n. Where n is the number of elements in array. is Δ ΔElement spacing.
• Transmit Antenna Array: t = Lt/nt. Total nt Bins (0, 1,…nt1)Δ• Receive Antenna Array: r = Lr/nr. Total nr bins (0, 1,…nr1)Δ• Directional Cosine of Rx/Tx signal
Ωri = cos(Φri)Ωti = cos(Φti)
Angular Decomposition
MIMO Multipath Channel
MIMO Multipath Channel
Angular Representation as DFT
Angular Domain Representation of MIMO Channel
Angular Domain Representation of MIMO Channel
Time Varience
Statistical Modeling with Time Variance
Statistical Modeling with Time Variance