Performance Evaluation of 60 GHz OFDM Communications under Channel Impairments over Multipath Fading Channels at 60 GHz

Abstract

This paper presents a detailed analysis of the impact of multipath propagation phenomena on the performance of mm Wave wireless systems for both uncoded and coded OFDM architectures, based on IEEE 802.15.3c standard for high data rate applications. The performance of OFDM is known to be severely affected by channel impairments when its excess time delay exceeds the time guard interval of the OFDM symbol. Hence, this paper evaluates the impact that such impairments have on both uncoded and coded system performances through appropriate metrics based on BER, operating range and PSNR for residential, office and kiosk scenarios under LOS and NLOS. The feasibility of real-time high- definition video transmission using 60 GHz radio systems will be demonstrated through the transmission of uncompressed Full HD video content over various radio propagation environments, which will allow one to perfectly understand the system limitations, and consequently the range of applications that might be developed.

Keywords

• OFDM
• Multipath Fading channels
• RF-impairments
• IEEE 802.15.3c
• mmWave signals.