Browsing by Author "Chang, Hsin-Ting"

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A Millimeter Wave Digital CMOS Baseband Transceiver for Wireless LAN Applications
(2019-01-01)
Chiu, Kang-Lun
;
Chan, Hsun-Wei
;
Lee, Wei-Che
;
Wu, Chang-Ting
;
Lopez, Henry
In this paper, we introduce a 10 Gbps digital baseband transceiver with IV supply voltage, 16-QAM, 3/4 code rate single carrier mode using 28 nm CMOS process to do the implementation. In millimeter wave communications, well-defined standard, IEEE 802.11ad is referenced for our system design and simulation. We target at modified chip rate 2.5 GHz with 4 times parallelism hardware at clock rate 625 MHz. The overall transceiver architecture design with hardware implementation considerations will be proposed. With the smart shared memory allocation, we can reduce 31% of the total amount. According to the referenced specifications, we achieve the required bit error rate 3 x 10(-7) before SNR 18.5 dB. After the system algorithm design, we implement the hardware with the core area 2.92 mm(2) with measured power 1.8 Watt for baseband transceiver chip. The performance of energ,y per bit is 0.023 nJ and 0.211 nJ per hit 6w Tx and Rx, including ADC/DAC.
Gb/s Prototyping of 60GHz Indoor Wireless SC/OFDM Transmitter and Receiver on FPGA Demo System
(2015)
Arya, Pranav
;
Huang, Liang-Yu
;
Liu, Wei-Chang
;
Chang, Hsin-Ting
;
Jen, Chih-Wei
This work presents a dual mode, single carrier (SC) and high speed interface (HSI), wireless baseband receiver which implements the IEEE standards 802.15.3c 111 and 802.11.ad [2]. The proposed architecture of the baseband receive is designed as 8 parallelism with feed-forward data path reducing the operating frequency and can achieve high throughput for indoor communication. Besides, our goal is to demonstrate the system on Xilinx VC707 FPGA evaluation board and achieve multi-Gb/s data speed and low bit error rate (BER). The data rates achieved by the prototype are 1.5 Gb/s and 4.5 Gb/s for QPSK and 64QAM data in HSI mode, respectively. The specified (BER) of 10(-2) has been achieved for QPSK and 64QAM data at 8.3dB and 22.6dB, respectively.