Contents
How is the capacity of channel calculated in the process of AWGN?
In this chapter we prove that the capacity of an AWGN channel with bandwidth W and signal-to- noise ratio SNR is W log2(1+SNR) bits per second (b/s). Readers who are prepared to accept the channel capacity formula without proof may skip this chapter.
How do you increase the capacity of a wireless channel?
By increasing the number of transmit and receive antennas, a 2 x 2 MIMO system effectively doubles the maximum data rate of what can be achieved in a traditional single RF channel. Many MIMO users link their radios to create mesh networks which allow radios to join or leave the network at any time.
What is ergodic capacity of Rayleigh fast fading channel?
Spatial Multiplexing with ML decoding and equal power allocation achieves the ergodic capacity of i.i.d. Rayleigh fast fading channels. Note that it has already been mentioned that the basis matrices satisfy Proposition 6.5.
Can a channel be considered a fast fading channel?
The channel in the frequency domain can then be considered as a fast fading channel in the frequency domain. Swapping frequency with time, one expects that a code designed for flat fast fading channels will perform well if used as a space-frequency code in a highly frequency selective channel.
Why does the fast fading channel act at medium Snr?
Several reasons may account for O ′ to loose α eigenvalues at medium SNR. As an example, the temporal correlation may be so large that full time diversity is not achievable anymore: the fast fading channel acts at medium SNR as if it were slow or block fading.
What does it mean to have capacity loss?
Capacity loss. Jump to navigation Jump to search. Capacity loss or capacity fading is a phenomenon observed in rechargeable battery usage where the amount of charge a battery can deliver at the rated voltage decreases with use.