TY - GEN
T1 - Comparison of stationarity regions for wireless channels from 2 GHz to 30 GHz
AU - Tan, Yi
AU - Wang, Cheng-Xiang
AU - Nielsen, Jesper Odum
AU - Pedersen, Gert F.
PY - 2017/7/20
Y1 - 2017/7/20
N2 - Millimeter wave (mmWave) communication works in the frequencies above 6 gigahertz (GHz), with the system bandwidth up to 500 megahertz (MHz) or wider. In this case, the channel situations are dramatically different from the existing wireless channels in Third Generation/Fourth Generation (3G/4G) communication systems, and the stationarity of mmWave channels could be very different from our former knowledge. The focus of this paper is to study the frequency and spatial stationarities of mmWave channels. For better understanding, we compare the stationarity regions between mmWave channels and the channels below 6 GHz. First, the general average power delay profile (APDP) method is introduced as a metric to determine the size of the stationarity regions in time, frequency, and spatial domains. Then, the general APDP method is applied in the data analysis of a channel measurement. We find that the frequency stationarity regions of the channels are much larger in mmWave bands above 6 GHz than those in conventional bands below 6 GHz, while the spatial stationarity regions of the channels are much smaller in mmWave bands above 6 GHz than those in conventional bands below 6 GHz.
AB - Millimeter wave (mmWave) communication works in the frequencies above 6 gigahertz (GHz), with the system bandwidth up to 500 megahertz (MHz) or wider. In this case, the channel situations are dramatically different from the existing wireless channels in Third Generation/Fourth Generation (3G/4G) communication systems, and the stationarity of mmWave channels could be very different from our former knowledge. The focus of this paper is to study the frequency and spatial stationarities of mmWave channels. For better understanding, we compare the stationarity regions between mmWave channels and the channels below 6 GHz. First, the general average power delay profile (APDP) method is introduced as a metric to determine the size of the stationarity regions in time, frequency, and spatial domains. Then, the general APDP method is applied in the data analysis of a channel measurement. We find that the frequency stationarity regions of the channels are much larger in mmWave bands above 6 GHz than those in conventional bands below 6 GHz, while the spatial stationarity regions of the channels are much smaller in mmWave bands above 6 GHz than those in conventional bands below 6 GHz.
KW - Allowance of similarity level (ASL)
KW - Correlation coefficient
KW - Frequency/spatial stationarity region
KW - General APDP method
KW - MmWave channel
UR - http://www.scopus.com/inward/record.url?scp=85027845469&partnerID=8YFLogxK
U2 - 10.1109/IWCMC.2017.7986361
DO - 10.1109/IWCMC.2017.7986361
M3 - Conference contribution
AN - SCOPUS:85027845469
T3 - International Wireless Communications and Mobile Computing Conference
SP - 647
EP - 652
BT - 2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC)
PB - IEEE
T2 - 13th IEEE International Wireless Communications and Mobile Computing Conference 2017
Y2 - 26 June 2017 through 30 June 2017
ER -