TY - JOUR
T1 - Sum of Squared Fluctuating Two-Ray Random Variables With Wireless Applications
AU - Zheng, Jiakang
AU - Zhang, Jiayi
AU - Pan, Gaofeng
AU - Cheng, Julian
AU - Ai, Bo
N1 - Publisher Copyright:
0018-9545 © 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - The fluctuating two-ray (FTR) channel fading offers good fit for small-scale experimental data in millimeter wave communications. We first investigate the statistical characterizations of the sum of independent nonidentically distributed squared FTR random variables. More specifically, the exact and approximate analytical expressions for moment generating function, probability density function, and cumulative distribution function are derived. Then, the performance of the maximal-ratio combining system over FTR fading channels is assessed in terms of the outage probability (OP) and the average bit error probability (ABEP). Moreover, asymptotic OP and ABEP expressions are obtained to obtain physical insights into the impact of the system and channel parameters on the overall performance. Finally, the correctness of our results is verified by simulation results.
AB - The fluctuating two-ray (FTR) channel fading offers good fit for small-scale experimental data in millimeter wave communications. We first investigate the statistical characterizations of the sum of independent nonidentically distributed squared FTR random variables. More specifically, the exact and approximate analytical expressions for moment generating function, probability density function, and cumulative distribution function are derived. Then, the performance of the maximal-ratio combining system over FTR fading channels is assessed in terms of the outage probability (OP) and the average bit error probability (ABEP). Moreover, asymptotic OP and ABEP expressions are obtained to obtain physical insights into the impact of the system and channel parameters on the overall performance. Finally, the correctness of our results is verified by simulation results.
KW - Fluctuating two-ray distribution
KW - Maximal-ratio combining
KW - Moment generating function
KW - Performance analysis
UR - http://www.scopus.com/inward/record.url?scp=85108084033&partnerID=8YFLogxK
U2 - 10.1109/TVT.2019.2920533
DO - 10.1109/TVT.2019.2920533
M3 - Article
AN - SCOPUS:85108084033
SN - 0018-9545
VL - 68
SP - 8173
EP - 8177
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 8
M1 - 8727983
ER -