PWAM signalling scheme for high speed serial link transceiver design
PWAM signalling scheme for high speed serial link transceiver design
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用于高速串行链路收发器设计的 PWAM 信令方案
DOI：
10.1145/1127908.1127922
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Yong
中科院分区：
文献类型：
--
作者：
R. Tang;Yong
在有线数据传输中，结合传统的脉宽调制(PWM)和脉冲幅度调制(PAM)方法，提出了一种新的信令方案PWAM(Pulse Width And Ampl幅调)，以获得串口链路收发信机设计的带宽和性能的最佳组合。对于电压电平数目M和不同脉冲宽度N的数目，PWAM-(M×N)方案的最大比特率改进为符号速率的log2M+log2N倍，而PAM-M和PWM-N的最大比特率分别为符号速率的log2M和log2n倍。根据有线通信信道的低通特性，对PWAM方案进行了抖动分析。还提出了新的技术来补偿不同符号的信道损失。仿真结果验证了该方案的有效性和新颖性。
This paper presents a new signaling scheme called PWAM (pulse width and amplitude modulation) to obtain the optimum combination of bandwidth and performance of the serial link transceiver design by combining the conventional PWM(pulse width modulation) and PAM(pulse amplitude modulation) approach in the wire-line data transmission. For the number of voltage level M and the number of different pulse width N, the maximum bit rate of PWAM-(M x N) scheme improves to log2M + log2N times the symbol rate while the maximum bit rate of PAM-M and PWM-N are log2M and log2n times the symbol rate, respectively. Jitter analysis for PWAM scheme has been performed based on the low pass characteristic of the wire-line communication channel. Novel techniques are also proposed to compensate the channel loss of different symbols. The simulation demonstrates the effectiveness and novelty of the proposed scheme.