Channel Characteristics and Transmission Performance for Various Channel Configurations at 60 GHz

Extensive measurements are conducted in room environments at 60 GHz to analyze thechannel characteristics for various channel configurations. Channel parameters retrievedfrom measurements are presented and analyzed based on generic channel models.Particularly, a simple single-cluster model is applied for the parameter retrieval andperformance evaluation. By this model, power delay profiles are simply described by a K-factor, a root-mean-squared delay spread, and a shape parameter. The consideredchannels are configured with the combination of omnidirectional, fan-beam, and pencil-beamantennas at transmitter and receiver sides. Both line-of-sight (LOS) and non-LOS (NLOS)channels are considered. Further, to evaluate the transmission performance, we analyzethe link budget in the considered environments, then design and simulate an OFDM systemwith a data rate of 2 Gbps to compare the bit-error-rate (BER) performance by using themeasured and modeled channels. Both coded and uncoded OFDM systems are simulated. It isobserved that the BER performance agrees well for the measured and modeled channels. Inaddition, directive configurations can provide sufficient link margins and BERperformance for high data rate communications. To increase the coverage and performancein the NLOS area, it is preferable to apply directive antennas.