Equalizer and Baseband System Design for Indoor Wireless SC/OFDM Receiver with 15-Gbps

• Main Authors: Tsui, Chia-Chun, 崔家駿
• Other Authors: Jou, Shyh-Jye
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/63622339216087349573

碩士 === 國立交通大學 === 電子工程學系 電子研究所 === 101 === This thesis proposes a single carrier (SC) and high speed interface (HSI) dual mode wireless receiver which is designed and implemented for IEEE 802.15.3c standard. There are five main block functional blocks in the baseband receiver as following: boundary detection, sampling clock offset (SCO) cancellation, carrier frequency offset (CFO) cancellation, frequency domain equalizer, and phase noise cancellation. The hardware of key modules between SC/HSI dual modes is shared to reduce the hardware complexity and power consumption. The baseband receiver adopts a new channel estimator, window-based noise cancellation (WNC) which can eliminate most noise of channel impulse response. Therefore, the LMS is replaced by WNC. Next, the fixed point simulation with calculating the signal to quantization error is used to minimize the word length of each point. With two methods above, the total gate count is reduced by 41.5%. The baseband receiver works at 400MHz. The data rate can achieve 7.04Gbps and 15.84Gbps in SC mode and HSI mode, respectively. The area is 243k gate count and the power is 44mW. In NLOS channel, the uncoded BER at SNR 12dB can achieve 6.01×10-4 and 5.84×10-4 in SC mode and HSI mode, respectively.