Rather than a singlecarrier solution, OFDM is chosen as a result that its equalizer dealing with the problem of high channel delay spread has lower complexity.
采用正交分频多工而不采用单载波技术的原因为其用于处理高通道延迟扩散问题的等化器具有较低的复杂度。
2
As the large delay, low throughput and frequent data collision in single-channel underwater acoustic networks, this paper devises a dual-channel MAC protocol based on carrier-sense.
Aiming at time-frequency overlapped two-signals in single-channel, this paper proposed a method to estimate carrier frequency based on second-order cyclic cumulants.