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

fYear

2010

fDate

22-23 Nov. 2010

Firstpage

99

Lastpage

102

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;

fLanguage

English

Publisher

ieee

Conference_Titel

SoC Design Conference (ISOCC), 2010 International

Conference_Location

Seoul

Print_ISBN

978-1-4244-8633-5

Type

conf

DOI

10.1109/SOCDC.2010.5682964

Filename

5682964