TY - JOUR
T1 - On the energy detection performance of arbitrarily correlated dual antenna receiver for vehicular communication
AU - Kavaiya, Sagar
AU - Patel, Dhaval K.
AU - Guan, Yong Liang
AU - Sun, Sumei
AU - Chang, Yoong Choon
AU - Lim, Joanne Mun Yee
N1 - Funding Information:
Manuscript received April 11, 2019; accepted May 1, 2019. Date of publication May 13, 2019; date of current version July 10, 2019. Authors would like to thank for financial support received from DST-ASEAN (Grant ref. IMRC/AISTDF/R&D/P-09/2017). The associate editor coordinating the review of this letter and approving it for publication was H. Zhang. (Corresponding author: Sagar Kavaiya.) S. Kavaiya and D. K. Patel are with the School of Engineering and Applied Science, Ahmedabad University, Ahmedabad 380009, India (e-mail: [email protected]; [email protected]).
Funding Information:
Authors would like to thank for financial support received from DST-ASEAN (Grant ref. IMRC/AISTDF/R&D/P-09/2017). The associate editor coordinating the review of this letter and approving it for publication was H. Zhang.
Publisher Copyright:
© 2019 IEEE.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/7
Y1 - 2019/7
N2 - In this letter, we investigate the energy detection performance over arbitrarily correlated Nakagami-m channels under vehicle mobility. We consider that vehicle is under the protection range of the primary user. We derive the probability density function of the received signal-to-noise ratio by means of the ratio of two distributions. Next, closed-form expression for the average probability of detection is derived considering maximal ratio combining diversity for dual-antenna branches under vehicle mobility. The numerical results demonstrate that that the impact of the arbitrary correlation under vehicle mobility in terms of receiver operating characteristic. Detection performance may vary under various antenna correlation types, such as exponential or uniform. Based on the numerical results obtained, we posit that the joint effect of high-antenna correlation and mobility of vehicle can degrade detection performance with a single antenna; furthermore, dual-antenna branches can provide a remedy to the deterioration.
AB - In this letter, we investigate the energy detection performance over arbitrarily correlated Nakagami-m channels under vehicle mobility. We consider that vehicle is under the protection range of the primary user. We derive the probability density function of the received signal-to-noise ratio by means of the ratio of two distributions. Next, closed-form expression for the average probability of detection is derived considering maximal ratio combining diversity for dual-antenna branches under vehicle mobility. The numerical results demonstrate that that the impact of the arbitrary correlation under vehicle mobility in terms of receiver operating characteristic. Detection performance may vary under various antenna correlation types, such as exponential or uniform. Based on the numerical results obtained, we posit that the joint effect of high-antenna correlation and mobility of vehicle can degrade detection performance with a single antenna; furthermore, dual-antenna branches can provide a remedy to the deterioration.
KW - arbitrary correlation
KW - Cognitive vehicular networks
KW - detection probability
KW - inter branch correlation
KW - Nakagami-m fading
UR - http://www.scopus.com/inward/record.url?scp=85068837877&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2019.2916317
DO - 10.1109/LCOMM.2019.2916317
M3 - Article
AN - SCOPUS:85068837877
SN - 1089-7798
VL - 23
SP - 1186
EP - 1189
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 7
ER -