Bandwith — number of bits that can be transmitted over a certain period of time. Sometimes referred as spectrum.
Transmission Time is a reverse of bandwith.
$$ T=\frac{1}{B} $$
Packet delay comprised of four sources:
$$ d_\text{nodal}=d_\text{proc}+d_\text{queue}+d_\text{trans}+d_\text{prop} $$
Processing:
Queueing delay:
Transmission delay:
$$ \frac{\text{packet length}}{\text{link transmission rate}} $$
Propagation delay:
$$ \frac{\text{length of physical link}}{\text{propagation speed}} $$
Throughput — rate at which bits are being sent from sender to receiver.