Joint Time and Power Allocations for Uplink Nonorthogonal Multiple Access Networks
- 993 Downloads
The rapid development of mobile Internet services has yielded tremendous traffic pressure on cellular radio access networks. Exploiting nonorthogonal multiple access (NOMA) that enables a group of mobile users (MUs) to simultaneously share a same spectrum channel for radio access provides an efficient approach to achieve the goals of ultra-high throughput and massive connectivity in future 5G network. In this paper, we propose a joint time and power allocations for uplink NOMA. We aim at minimizing the delay for transmission and the total energy consumption of all MUs when the MUs send their data to the BS, while satisfying each MU’s constrains on the transmission delay and energy consumption. Numerical results are provided to validate our proposed algorithm and the performance and advantage of our proposed joint optimization for time and power allocations for uplink NOMA.
KeywordsNonorthogonal multiple access Radio resource management Optimization
This work was supported in part by the National Natural Science Foundation of China under Grant 61572440, in part by the Zhejiang Provincial Natural Science Foundation of China under Grants LR17F010002 and LR16F010003, in part by the Young Talent Cultivation Project of Zhejiang Association for Science and Technology under Grant 2016YCGC011.
- 4.Saito, Y., Kishiyama, Y., Benjebbour, A., Nakamura, T., Li, A., Higuchi, K.: Non-orthogonal multiple access (NOMA) for cellular future radio access. In: 2013 IEEE 77th Vehicular Technology Conference (VTC Spring), Dresden, pp. 1–5 (2013)Google Scholar
- 6.Lei, L., Yuan, D., Ho, C., Sun, S.: Joint optimization of power and channel allocation with non-orthogonal multiple access for 5G cellular systems. In: 2015 IEEE Global Communications Conference (GLOBECOM), San Diego, CA, pp. 1–6 (2015)Google Scholar
- 14.Grant, M., Boyd, S., Ye, Y.: CVX: matlab software for disciplined convex programming (2009). http://cvxr.com/cvx/
- 15.Weisstein, E.: “Bisection,” from MathWorld - a wolfram web resource. http://mathworld.wolfram.com/Bisection.html