99 dBm/Hz
i Receiver noise figure 7 dB
j System BW 65.84331 dB
k Hand-off gain 3 dB
l Lognormal fading margin 7 dB
m Propagation path loss 143 dB
n Building penetration loss 0 dB
o Various implementation loss 6 dB
p Rx signal power 116 dBm abcdeklmno
q Eb/(IoNo) 4.988487 dB
r Processing gain 21.0721 dB
s Interference noise floor 98.1464 dBm hij
t Ec/(IoNo) 17.8536 dB ps
u Sensitivity 118.138 dBm hiqv
v User data rate (12.2 kbps) 40.8636 dB
If the required value of Eb/No is low, then the communication system can request the transmit
power to be increased. However, assuming all the cells react in a similar fashion, then the interference
density values need to be revisited because of the increase in the other cell interference. Moreover,
link level simulations need to be rerun to observe the effects on the BLER/TPUT as the interference
(both intra- and inter-cell) is increased.
Another potential solution may be to use better performing components (possibly at the expense
of cost) that could essentially increase an antenna gain or reduce the desired NF. Here system cost targets
must be factored into the system design. Every dB of improvement in the noise figure directly
impacts the receiver sensitivity.
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