Table 3 Diversity order comparisons between different cascaded structures
From: On the performance of MIMO RFID backscattering channels
Channel and coding scheme | Diversity order | Performance bottleneck |
|---|---|---|
RFID (identical) | min(L,N) | |L−N| > 1 |
RFID (OSTBC) | L | N > 2 |
Keyhole channel (OSTBC) | min(L N)[16] | |L−N| > 1 |
Double scattering channel (OSTBC) | MLN/max(M L N)[18] | − |
Independent Double Rayleigh (identical) | N | L > 2 |
Independent Double Rayleigh (OSTBC) | NL[30] | No bottleneck |