bounds on the fading number of multiple-input single-output fading channels with memory
We derive new upper and lower bounds on the fading number of multiple-input single-output (MISO) fading channels of general (not necessarily Gaussian) regular law with spatial and temporal memory. The fading number is the second term, after the double-logarithmic term, of the high signal-to-noise ratio (SNR) expansion of channel capacity.In case of an isotropically distributed fading vector it is proven that the upper and lower bound coincide, i.e. , the general MISO fading number with memory is known precisely.The upper and lower bounds show that a type of beam-forming is asymptotically optimal.
fading number memory miso channel capacity beam-forming non-coherent multiple-antenna high snr flat fading