Title :
Implementation of channel estimation for MIMO-OFDM systems
Author :
Lin, Chih-Hung ; Chang, Robert Chen-Hao ; Lin, Kuang-Hao ; Lin, Yang-Yu
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan
Abstract :
In modern Wireless Local Area Network (WLAN), both the transmitting data throughput and the connecting stability are very important. For the IEEE802.11n protocol specification, it is made of a multi-input multi-output (MIMO) system and an Orthogonal Frequency Division Multiplexing (OFDM) system. In order to decrease the decoding error rate at the receiving end and to fully restore the original transmitting signal, estimation of the channel response information is necessary. In this paper, a combined channel estimation algorithm is proposed by using TDT-L-STBC, which can increase the MIMO channel estimation performance. The proposed architecture of MIMO-2×2 is implemented and verified by TSMC 0.18 μm CMOS technology.
Keywords :
CMOS integrated circuits; MIMO communication; OFDM modulation; channel estimation; decoding; protocols; space-time block codes; wireless LAN; IEEE802.11n protocol specification; MIMO-OFDM system; TDT-L-STBC; TSMC CMOS technology; channel estimation; connecting stability; data throughput; decoding error rate; multiinput multi-output system; orthogonal frequency division multiplexing system; size 0.18 mum; wireless local area network; Bit error rate; Channel estimation; MIMO; OFDM; Signal to noise ratio; Time domain analysis; Channel estimation; MIMO; OFDM;
Conference_Titel :
SoC Design Conference (ISOCC), 2010 International
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-8633-5
DOI :
10.1109/SOCDC.2010.5682964
