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Questions related from Jiajun Zhu
The non-linearity of power amplifier limits the power output efficiency. So, we can use DPD technique to improve it. But we need to know the power amplifier with the memory effect or memory-less....
13 September 2018 5,994 6 View
Hi all, I am designing a loop filter of DPLL in 802.11ac OFDM system. The DPLL tracking is achieved by pilot symbols inserted into OFDM symbols. Importantly, the coefficients of loop filter...
04 February 2016 9,143 3 View
As for linear ZF or MMSE detector, the coefficient of soft output is that symbol power over symbol interference power plus white noise power. As for non-linear ZF-SIC or MMSE-SIC detector, the...
16 October 2015 6,411 4 View
Hi all, In linear MIMO ZF or MMSE, the LLR is calculated by detected signal power over both interference noise power and white noise power. In nonlinear MIMO ZF-SIC and MMSE-SIC, the interference...
04 August 2015 6,532 1 View
I am working for a semi-conductor company. Now, my assignment is to design IEEE802.11ac PHY layer algorithm. However, the situation of theoretical simulation is very different from that of...
11 May 2015 6,863 6 View
Further, could anyone provide some references introducing this technique in detail? Many thanks
01 September 2014 4,176 1 View
I wanna to establish a inverse modelling to get a equalizer to combat the multipath channel. However, I found a problem that the training of LMS algorithm is very unstable under the Rayleigh...
22 August 2014 1,021 17 View
I want to design a Decision Feedback Equalizer (DFE) to combat the multipath channel. Does anyone know some references about the principles of Decision Feedback Equalizer (DFE) ? Further, What is...
20 August 2014 5,343 4 View
