In addition , the communication channels and the communication protocols are studied . the performance of three protocols of the piont - to - piont communiacations are compared and the effects of encoding and signal - to - noise rate on the performance of communication systems are derived 此外對流星通信信道和通信協(xié)議進(jìn)行了探索研究,計(jì)算并比較了點(diǎn)對點(diǎn)通信協(xié)議的三種子協(xié)議的性能,得到了編碼、信噪比等對通信系統(tǒng)性能的影響。