Design and evaluation of a 4×4 MIMO-OFDM transceiver for gigabit indoor wireless communications

Pei Yun Tsai, Ze Mu Chang, Zheng Yu Huang, Wen Ji Jau

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper presents a MIMO-OFDM baseband transceiver design for indoor gigabit wireless communication systems. The proposed system uses 5 GHz carrier frequency with bandwidth up to 160 MHz. Both the transmitter and the receiver support 4 antennas. At the receiver, we design symbol timing detector, carrier frequency offset first acquisition and subsequent tracking mechanisms, channel estimation and MIMO detection. Simulation results show that the proposed symbol timing detection algorithm is more precise than the conventional algorithm. The CFO tracking mechanism also helps to improve the severe degradation in MIMO detection due to the residual synchronization error. In addition, by exploiting low-correlated spatial diversity, this system can combat highly frequency-selective fading channels for wide-band applications. We thus achieve satisfying system performance with 64-QAM constellation for 2.6-Gbps transmission rate.

Original languageEnglish
Title of host publicationProceedings of the 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Pages955-958
Number of pages4
DOIs
StatePublished - 2010
Event2010 Asia Pacific Conference on Circuit and System, APCCAS 2010 - Kuala Lumpur, Malaysia
Duration: 6 Dec 20109 Dec 2010

Publication series

NameIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS

Conference

Conference2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Country/TerritoryMalaysia
CityKuala Lumpur
Period6/12/109/12/10

Keywords

  • gigabit transmission
  • high throughput
  • MIMO-OFDM baseband receiver
  • Wireless LAN

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