Table 2 Measurement parameters of WIT

Power signal parameters used at transmitter

Carrier frequency

2 GHz

Sampling frequency

2 MHz

Sampling period Ts

0.5 μs

Cyclic prefix size \(L_{\text{cp}}\)

36 samples

Gain of power signal \(G_{P,Tx}\)

0 : 31.5 dB

Rectangular offset \(L_{\text{o}}\) (when fixed)

6 samples

Rectangular width \(W_{\text{p}}\) (when fixed)

20 samples

Amplitude \(V_{\text{p}}\)

10 x \(V_i\)

Ratio of amplitude Ar

20.73 dB

Information signal parameters used at transmitter and receiver

Carrier frequency

2 GHz

Actual sampling rate

20 MHz

Oversampling factor

10

Sampling frequency

2 MHz

Bandwidth

1.980 MHz

Intermediate frequency

6 MHz

Modulation

QPSK

Sub-carrier spacing \(\Delta _f\)

3.90625 kHz

Number of subcarriers N

512

Number of inactive subcarriers

5

Sampling period Ts

0.5 μs

Useful symbol duration N (T)

512 samples (256 μs)

Cyclic prefix duration \(L_{\text{cp}}\) (\(T_{\text{cp}}\))

36 samples (18 μs)

Training sequence type

IEEE 802.11a short

Training sequence size

160 samples

Pulse shape parameters

Raised Cosine

Information signal parameters used at transmitter only

Gain of information signal \(G_{I,Tx}\)

6 dB

Number of bits transmitted

1024

Information signal parameters used at receiver only

Case I distance d

3 m

Case II distance d

4 m

Synchronization method

OFDM synchronization

Symbol timing recovery method

Max energy

Frame detection method

Self reference w/power norm.