计算机科学 ›› 2015, Vol. 42 ›› Issue (5): 157-159.doi: 10.11896/j.issn.1002-137X.2015.05.031
田心记,逯 静
TIAN Xin-ji and LU Jing
摘要： 对于每个用户配置4根天线的X信道,提出了一种改进的干扰消除方法。每个用户采用速率为2的空时分组码,通过在每个用户的发送信号中引入零元素,消除了接收端的非期望接收码字；通过对空时码字进行预编码使得每个接收端的期望接收码字正交传输,从而消除了期望接收码字间的干扰。与相同场景中的已有方案相比,所提方案在保持相同传输效率的同时,极大地减少了反馈量。仿真结果验证了所提方案的有效性。
| [1] Wang Jiu-teng.Maximum-minimum throughput for MIMO systems in cognitive radio networks[J].IEEE Transactions on Vehicular Technology,2014,63(1):217-224 [2] Gesbert D,Shafi M,Shiu D.From theory to practice:an overview of MIMO space-time coded wireless systems [J].IEEE Journal on Selected Areas in Communications,2003,21(3):281-302 [3] Bhatangar M,Hjrungnes A,Song L.Linear precoding of STBC over correlated rice MIMO channels[J].IEEE Transactions on Wireless Communications,2010,9(6):1832-1836 [4] Oggier F,Rekaya G,Belfiore J C,et al.Perfect space-time block codes [J].IEEE Transactions on Information Theory,2006,52(9):3885-3902 [5] Mroueh L,Stephanie R L,Belfiore J C.Application of perfectspace time codes:PEP bounds and some practical insights [J].IEEE Transactions on Communications,2012,60(3):747-755 [6] Sezginer S,Sari H.On high-rate full-diversity 2×2 space-time codes with low-complexity optimum detection[J].IEEE Transactions on Communications,2009,57(5):1532-1541 [7] Jiang C L,Wang M M,Shu F.Multi-user MIMO with limited feedback using alternating codebooks [J].IEEE Transactions on Communications,2012,60(2):333-338 [8] Wang Jiu-teng.Joint MMSE equalization and power control for MIMO system under multi-user interference [J].IEEE Communications Letters,2012,16(1):54-56 [9] Maddah-Ali M,Motahari A,Khandani A.Communication over MIMO X channels:Interference alignment,decomposition,and performance analysis [J].IEEE Transactions on Information Theory,2008,54(8):3457-3470 [10] Rao Xiong-bin,Ruan Liang-zhong, Lan K N.Csi feedback reduction for mimo interference alignment[J].IEEE Transactions on Signal Processing,2013,61(18):4428-4437 [11] 田心记,倪水平.MIMO-MAC中改进的空时码传输方案[J].北京邮电大学学报,2013,36(4):95-98 [12] Li Liang-bin,Jafarkhani H,Jafar S A.When alamouti codesmeet interference alignment:transmission schemes for two-user x channel [C]∥IEEE International Symposium on Information Theory.Saint-Petersburg,2011:2577-2581 [13] Long Shi,Zhang Wei,Xia Xiang-gen.Space-Time Block CodeDesigns for Two-User MIMO X Channels[J].IEEE Transactions on Communications,2013,61(9):3806-3815 [14] Zaki A,Wang Chao,Rasmusse L K.Combining interference alignment and alamouti codes for the 3-user mimo interference channel[C]∥IEEE Wireless Communications and Networking Conference.Shanghai,2013:3563-3567 [15] Ganesan A,Srajan B.Interference alignment with diversity forthe 2×2 X network with three antennas .http://arxiv.org/abs/1304.1432.2013.4 [16] Li Feng,Jafarkhani H.Space-time processing for x channels using precoders [J].IEEE Transactions on Signal Processing,2012,60(4):1849-1861 |
| No related articles found! |
|
||
首页