An NLOS-capable 60 GHz MIMO demonstrator: System concept & performance

• Published in: 2011 IEEE 9th International New Circuits and Systems Conference, NEWCAS 2011; Bordeaux; 26 June 2011 through 29 June 2011 pp. 265 - 268
• Main Authors: Keusgen, W., Kortke, A., Koschel, L., Peter, M., Weiler, R., Zirath, H., Gavell, M., Zhongxia He
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2011
• Subjects: 60 GHz MIMO; 60 GHz NLOS; Bit error rate; Hardware; Millimeter wave transmission; MIMO; Non-line-of-sight; OFDM; Receivers; Signal to noise ratio; Wireless communication; Wireless indoor networks; WLAN; WPAN
• ISBN: 161284135X; 9781612841359
• DOI: 10.1109/NEWCAS.2011.5981306

In this paper we present a 60 GHz 2 × 2 MIMO demonstrator which has been developed to accomplish robust line-of-sight as well as non-line-of-sight indoor transmission. The physical layer concept is based on Code-Spread Orthogonal Frequency Division Multiplexing (CS-OFDM) and Alamouti Space-Time Coding (STC) to make maximum use of both frequency and space diversity. The highly modular, reconfigurable hardware implementation comprises commercial FPGA platforms and self-developed extension modules up to fully integrated TX/RX 60 GHz frontends in III-V technology. We present results of transmission experiments conducted in a small office environment, which exemplary illustrate the capabilities and the performance of the presented approach.