Design and evaluation of a 4×4 MIMO-OFDM transceiver for gigabit indoor wireless communications
Journal
IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
Date Issued
2010
Author(s)
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. © 2010 IEEE.
Event(s)
2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Subjects
gigabit transmission
high throughput
MIMO-OFDM baseband receiver
Wireless LAN
SDGs
Description
Kuala Lumpur, 6 December 2010 through 9 December 2010
Type
conference paper