However, wireless system is a band limited system, and the channel allocation algorithm affects the performance of the wireless DP server network directly.
无线系统，带宽有限，信道资源分配算法，直接影响着网络的服务性能。
Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
当进行高速水下通信时，由于水下信道的频带有限，扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。
Satellite communication channel has the characteristic of power limited, band abundance, and powerful error correcting ability FEC scheme is needed.
卫星通信信道具有功率受限、带宽充足的特点，要求采用具有强大纠错能力的信道纠错技术。
However, as we know that the wireless system is a band-limited system, so the channel allocation algorithm is very important.
但是众所周知，无线系统是带宽受限系统，信道分配算法至关重要。
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
Most of the wireless communication systems are required to achieve least adjacent channel emissions and high bandwidth efficiency, that is to say signals must be transmitted in a limited band.
绝大多数无线通信系统都要求对相邻频段的用户产生最小的干扰，也就是必须在所规定的频段范围内传送信号。
Most of the wireless communication systems are required to achieve least adjacent channel emissions and high bandwidth efficiency, that is to say signals must be transmitted in a limited band.
绝大多数无线通信系统都要求对相邻频段的用户产生最小的干扰，也就是必须在所规定的频段范围内传送信号。
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