## 4 Simulation Tests Using Watermark Replay Channel Simulator
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Spreading Sequence** & **BER** & \begin{tabular}{c} **Transmission** \\ **Rate** \\ **No ECC** \\ \end{tabular} & \begin{tabular}{c} **BCH Code** \\ **Rate** \\ **No ECC** \\ \end{tabular} & \begin{tabular}{c} **Transmission** \\ **Rate** \\ **BER \textless{} **0.01** \\ \end{tabular} & \
\begin{tabular}{c} **BCH Code** \\ **Rate** \\ **BER \textless{} **0.01** \\ \end{tabular} &
\begin{tabular}{c} **Transmission** \\ **Rate** \\ **BER \textless{} **0.001** \\ \end{tabular} \\ \hline \multicolumn{5}{c}{**Bandwidth = 1 kHz**} \\ \hline m-sequence & \textless{}0.001 & 3.92 bps & — & 3.92 bps & — & 3.92 bps \\ \hline Kasami code & \textless{}0.001 & 3.92 bps & — & 3.92 bps & — & 3.92 bps \\ \hline Gold code & \textless{}0.001 & 3.92 bps & — & 3.92 bps & — & 3.92 bps \\ \hline \multicolumn{5}{c}{**Bandwidth = 2 kHz**} \\ \hline m-sequence & \textless{}0.001 & 7.84 bps & — & 7.84 bps & — & 7.84 bps \\ \hline Kasami code & \textless{}0.001 & 7.84 bps & — & 7.84 bps & — & 7.84 bps \\ \hline Gold code & \textless{}0.001 & 7.84 bps & — & 7.84 bps & — & 7.84 bps \\ \hline \multicolumn{5}{c}{**Bandwidth = 4 kHz**} \\ \hline m-sequence & 0.35 & 15.69 bps & 12/2047 & 0.09 bps & \textgreater{}13/4095 & \textless{}0.05 bps \\ \hline Kasami code & 0.23 & 15.69 bps & 7/63 & 1.74 bps & 10/511 & 0.31 bps \\ \hline Gold code & 0.35 & 15.69 bps & 12/2047 & 0.09 bps & \textgreater{}13/4095 & \textless{}0.05 bps \\ \hline \multicolumn{5}{c}{**Bandwidth = 5 kHz**} \\ \hline m-sequence & 0.37 & 19.61 bps & \textgreater{}13/4095 & \textless{}0.06 bps & \textgreater{}13/4095 & \textless{}0.06 bps \\ \hline Kasami code & 0.33 & 19.61 bps & 12/2047 & 0.11 bps & \textgreater{}13/4095 & \textless{}0.06 bps \\ \hline Gold code & 0.37 & 19.61 bps & \textgreater{}13/4095 & \textless{}0.06 bps & \textgreater{}13/4095 & \textless{}0.06 bps \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Results of simulation tests using Watermark software; BCH1 channel. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Spreading Sequence** & **BER No ECC** & \begin{tabular}{c} **Transmission Rate** \\ **No ECC** \\ \end{tabular} & \begin{tabular}{c} **BCH Code** \\ **Rate** \\ **BER \textless{} **0.01** \\ \end{tabular} & \begin{tabular}{c} **Transmission Rate** \\ **BER \textless{} **0.01** \\ \end{tabular} & \
\begin{tabular}{c} **BCH Code** \\ **Rate** \\ **BER \textless{} **0.001** \\ \end{tabular} &
\begin{tabular}{c} **Transmission Rate** \\ **BER \textless{} **0.001** \\ \end{tabular} \\ \hline \multicolumn{5}{c}{**Bandwidth = 1 kHz**} \\ \hline m-sequence & \textless{}0.001 & 3.92 bps & — & 3.92 bps & — & 3.92 bps \\ \hline Kasami code & \textless{}0.001 & 3.92 bps & — & 3.92 bps & — & 3.92 bps \\ \hline Gold code & \textless{}0.001 & 3.92 bps & — & 3.92 bps & — & 3.92 bps \\ \hline \multicolumn{5}{c}{**Bandwidth = 2 kHz**} \\ \hline m-sequence & 0.04 & 7.84 bps & 5/15 & 2.61 bps & 6/31 & 1.52 bps \\ \hline Kasami code & 0.01 & 7.84 bps & 4/7 & 4.48 bps & 5/15 & 2.61 bps \\ \hline Gold code & 0.02 & 7.84 bps & 4/7 & 4.48 bps & 5/15 & 2.61 bps \\ \hline \multicolumn{5}{c}{**Bandwidth = 4 kHz**} \\ \hline m-sequence & 0.35 & 15.69 bps & 13/4095 & 0.05 bps & \textgreater{}13/4095 & \textless{}0.05 bps \\ \hline Kasami code & 0.28 & 15.69 bps & 12/20147 & 0.09 bps & \textgreater{}13/4095 & \textless{}0.05 bps \\ \hline Gold code & 0.33 & 15.69 bps & 13/4095 & 0.05 bps & \textgreater{}13/4095 & \textless{}0.05 bps \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Results of simulation tests using Watermark software; KAU1 channel.