Candidate architecture for MIMO LTE-Advanced receivers with multiple channels capabilities and reduced complexity and cost

• Published in: 2011 IEEE Radio and Wireless Symposium pp. 263 - 266
• Main Authors: Burciu, I, Gautier, M, Villemaud, G, Verdier, J
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-01-2011
• Subjects: Antennas; Code multiplexing structure; Complexity theory; Computer architecture; Double IQ structure; Frequency division multiplexing; Low complexity front-end; LTE-Advanced; Radio frequency; Receivers
• ISBN: 9781424476879; 1424476879
• ISSN: 2164-2958; 2164-2974
• DOI: 10.1109/RWS.2011.5725448

In this paper, a candidate architecture for LTE-Advanced receiver is proposed. Based on the combination of MIMO techniques and flexible spectrum access, LTE-Advanced terminals will require the increasing of the analog front-end complexity. To reduce the complexity of the analog front-end, an innovative architecture based on the merge between the double IQ and the code multiplexing structures is proposed. Simulation and measurement results show that, in a Gaussian case, the bit error rate is similar when using the proposed architecture and the state of the art front-end stack-up structure. A complexity evaluation study reveals significantly reduced power consumption of the proposed single front-end architecture.