TY - GEN
T1 - Optimal power allocation in cache-aided non-orthogonal multiple access systems
AU - Doan, Khai Nguyen
AU - Shin, Wonjae
AU - Vaezi, Mojtaba
AU - Poor, H. Vincent
AU - Quek, Tony Q.S.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/3
Y1 - 2018/7/3
N2 - This work combines non-orthogonal multiple access (NOMA) and caching, two prominent techniques for future communication networks. Specifically, a cache-aided cellular network with Rayleigh fading channels is analyzed. By exploiting the channel distribution, users requests, and cache contents in given time, an optimal power allocation policy for the superposed signal is derived. The goal is to maximize the system success probability, i.e., the probability that all users can successfully decode their desired signals. The analysis highlights the benefits of introducing caching to NOMA-based systems. Simulation results confirm the analysis and demonstrate the efficiency of the proposed power allocation.
AB - This work combines non-orthogonal multiple access (NOMA) and caching, two prominent techniques for future communication networks. Specifically, a cache-aided cellular network with Rayleigh fading channels is analyzed. By exploiting the channel distribution, users requests, and cache contents in given time, an optimal power allocation policy for the superposed signal is derived. The goal is to maximize the system success probability, i.e., the probability that all users can successfully decode their desired signals. The analysis highlights the benefits of introducing caching to NOMA-based systems. Simulation results confirm the analysis and demonstrate the efficiency of the proposed power allocation.
UR - http://www.scopus.com/inward/record.url?scp=85050314771&partnerID=8YFLogxK
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U2 - 10.1109/ICCW.2018.8403606
DO - 10.1109/ICCW.2018.8403606
M3 - Conference contribution
AN - SCOPUS:85050314771
T3 - 2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings
SP - 1
EP - 6
BT - 2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018
Y2 - 20 May 2018 through 24 May 2018
ER -