TY - GEN
T1 - Cost-efficient codebook assignment and power allocation for energy efficiency maximization in SCMA networks
AU - Li, Yuzhou
AU - Sheng, Min
AU - Sun, Zhisheng
AU - Sun, Yuhua
AU - Liu, Lei
AU - Zhai, Daosen
AU - Li, Jiandong
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/7/2
Y1 - 2016/7/2
N2 - In this paper, we investigate the energy-efficient transmission problem by resource allocation in SCMA networks. We formulate it as an optimization problem to maximize the network energy efficiency (EE) subject to quality-of-service (QoS) requirements, codebook assignment, power allocation, and subcarrier reuse constraints. Due to its mixed combinatory, we separate codebook assignment and power allocation to devise suboptimal but cost-efficient algorithms. With power equally distributed, we first propose a novel scheme to assign codebooks. We then develop a derivative-bisection based algorithm to optimally solve the resultant power allocation problem by exploiting its quasiconcave structure. Simulation results exhibit the superiority of the proposed algorithms against the existing classical schemes and of SCMA over OFDMA in terms of the network EE.
AB - In this paper, we investigate the energy-efficient transmission problem by resource allocation in SCMA networks. We formulate it as an optimization problem to maximize the network energy efficiency (EE) subject to quality-of-service (QoS) requirements, codebook assignment, power allocation, and subcarrier reuse constraints. Due to its mixed combinatory, we separate codebook assignment and power allocation to devise suboptimal but cost-efficient algorithms. With power equally distributed, we first propose a novel scheme to assign codebooks. We then develop a derivative-bisection based algorithm to optimally solve the resultant power allocation problem by exploiting its quasiconcave structure. Simulation results exhibit the superiority of the proposed algorithms against the existing classical schemes and of SCMA over OFDMA in terms of the network EE.
UR - http://www.scopus.com/inward/record.url?scp=85017028004&partnerID=8YFLogxK
U2 - 10.1109/VTCFall.2016.7880945
DO - 10.1109/VTCFall.2016.7880945
M3 - 会议稿件
AN - SCOPUS:85017028004
T3 - IEEE Vehicular Technology Conference
BT - 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 84th IEEE Vehicular Technology Conference, VTC Fall 2016
Y2 - 18 September 2016 through 21 September 2016
ER -