Robust Beamforming for Nonorthogonal Multiple-Access Systems in MISO Channels
作者： Qi Zhang , Quanzhong Li , Jiayin Qin
关键词:
摘要: Nonorthogonal multiple access (NOMA) is a promising technology in future mobile communication systems. In this paper, considering that the base station knows imperfect channel state information (CSI), we investigate robust beamforming design problem for NOMA systems multiple-input-single-output (MISO) channels. Modeling uncertainties by worst-case model, aim at maximizing achievable sum rate subject to transmit power constraint station. We propose decouple nonconvex optimization into four problems and employ an alternating algorithm solve problem. Simulation results demonstrate our proposed scheme outperforms orthogonal multiple-access scheme.
sci-hub.se 参考文章(14)
Zhiguo Ding, Fumiyuki Adachi, H. Vincent Poor, The Application of MIMO to Non-Orthogonal Multiple Access IEEE Transactions on Wireless Communications. ,vol. 15, pp. 537- 552 ,(2016) , 10.1109/TWC.2015.2475746
Zhiguo Ding, Robert Schober, H. Vincent Poor, A General MIMO Framework for NOMA Downlink and Uplink Transmission Based on Signal Alignment IEEE Transactions on Wireless Communications. ,vol. 15, pp. 4438- 4454 ,(2016) , 10.1109/TWC.2016.2542066
Linglong Dai, Bichai Wang, Yifei Yuan, Shuangfeng Han, I. Chih-lin, Zhaocheng Wang, Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends IEEE Communications Magazine. ,vol. 53, pp. 74- 81 ,(2015) , 10.1109/MCOM.2015.7263349
Zhiguo Ding, Mugen Peng, H. Vincent Poor, Cooperative Non-Orthogonal Multiple Access in 5G Systems IEEE Communications Letters. ,vol. 19, pp. 1462- 1465 ,(2015) , 10.1109/LCOMM.2015.2441064
Yuya Saito, Yoshihisa Kishiyama, Anass Benjebbour, Takehiro Nakamura, Anxin Li, Kenichi Higuchi, Non-Orthogonal Multiple Access (NOMA) for Cellular Future Radio Access 2013 IEEE 77th Vehicular Technology Conference (VTC Spring). pp. 1- 5 ,(2013) , 10.1109/VTCSPRING.2013.6692652
Beomju Kimy, Sungmook Lim, Hyungjong Kim, Sangwook Suh, Jonghyung Kwun, Sooyong Choi, Chungyong Lee, Sanghoon Lee, Daesik Hong, Non-orthogonal Multiple Access in a Downlink Multiuser Beamforming System MILCOM 2013 - 2013 IEEE Military Communications Conference. pp. 1278- 1283 ,(2013) , 10.1109/MILCOM.2013.218
Stelios Timotheou, Ioannis Krikidis, Fairness for Non-Orthogonal Multiple Access in 5G Systems IEEE Signal Processing Letters. ,vol. 22, pp. 1647- 1651 ,(2015) , 10.1109/LSP.2015.2417119
Amir Beck, Yonina C. Eldar, Strong Duality in Nonconvex Quadratic Optimization with Two Quadratic Constraints Siam Journal on Optimization. ,vol. 17, pp. 844- 860 ,(2006) , 10.1137/050644471
Pingzhi Fan, H. Vincent Poor, Zheng Yang, Zhiguo Ding, On the Performance of Non-Orthogonal Multiple Access in 5G Systems with Randomly Deployed Users IEEE Signal Processing Letters. ,vol. 21, pp. 1501- 1505 ,(2014) , 10.1109/LSP.2014.2343971
Y.C. Eldar, N. Merhav, A competitive minimax approach to robust estimation of random parameters IEEE Transactions on Signal Processing. ,vol. 52, pp. 1931- 1946 ,(2004) , 10.1109/TSP.2004.828931