MIMO-OFDM中基于KSDA和SQRD的联合检测算法
摘要
球形译码算法的检测性能最接近最大似然检测算法,但其计算复杂度仍然较高。为了在计算复杂度和系统性能之间取得良好折中,在研究标准球形译码的基础上,提出一种新的球形译码改进算法。新算法由快速球形译码与基于MMSE准则的SQRD算法构成。该算法在高信噪比时采用SQRD算法,低信噪比时采用KSDA算法。仿真结果表明,该算法在降低球形译码算法复杂度的同时获得了较好的系统性能。
出处
《广东通信技术》
2013年第5期52-56,共5页
Guangdong Communication Technology
参考文献7
-
1Jee-Hye Lee, Myung-Sun Back, Hyoung-KyuSong. Efficient MIMO receiving technique in IEEE 802.11n system for enhanced services. IEEE trans: consum electron, 2007, 53(5): 344-349.
-
2周健,张冬.MIMO-OFDM系统中的信号检测算法(Ⅰ)[J].南京工程学院学报（自然科学版）,2010,8(1):15-23. 被引量：2
-
3Damen M O, A bed-Meraim K, Lemdani M S. Further results on the sphere decoder[C]//Proc IEEE Int symp information theory. Washington D C: IEEE, 2001:333.
-
4U. Fincke, M. Phost. Improved methods for calculating vectors of short length in a lattice including a complexityanalysis[J]. Mathematics of computation. 1985, 44(4): 463- 471.
-
5E.Viterbo, J.Boutros. A universal lattice code decoder for fading channels[J]. IEEE trans, inform, therory, 1999,45: 1639-1642.
-
6Razavizadeh S M, Vakili V T, Azmi P. A new faster sphere decoder for MIMO system[C]. Proceeding of the 3rd IEEE international symposium on signal processing and information technology. Piscataway: IEEE, 2003:86-89.
-
7Vikalo H, Hassibi B. On the sphere decoding algorithm I: expected complexity[J]. IEEE trans signal process, 2005,53(8): 2806-2818.
二级参考文献13
-
1HELMUT B O. Principles of MIMO- OFDM Wireless Systems[ M]. Boca Raton: CRC Press, 2005.
-
2GOLDEN G D, FOSCHIN1 G J, VALENZUELA R A. Detection algorithm and initial laboratory results using the V-BLAST space-time commu- nication architecture[ J]. IEEE Electron Letter, 1999, 35 ( 1 ) : 14 - 15.
-
3VERD U. Muhiuser Detection[ M]. New York: Cambridge Univ. Press, 1998.
-
4SELLATHURAI M, HAYKIN S. A simplified diagonal BLAST architecture with iterative parallel interference cancellation receivers [ C ]// IEEE International Conference on Communications, 2001 : 3067 -3071.
-
5FOSCHINI G J, GOLDEN G D, VALENZUELA R A. Simplified processing for high spectral efficiency wireless communication employing muhi-element arrays[ J]. JSAC 1999, 17 ( 11 ) : 1841 - 1852.
-
6HAROLD A, DOMINIK S, FRANZ H. Efficient Detection Algorithms for MIMO Channels: A Geometrical Approach to Approximate ML Detection [ J ]. IEEE Transactions on Signal Processing, 2003, 51 ( 11 ) : 2808 - 2820.
-
7MOHAMED O D, GAMAL H E, GIUSEPPE C. On maximum-likelihood detection and the search for the closest lattice point [ J ]. IEEE Transactions on Information Theory, 2003, 49(10) : 2389 -2402.
-
8GAMAL H E, CAIRE G, DAMEN M O. Lattice coding and decoding achieves the optimal diversity-multiplexing tradeoff of MIMO channels [ J ]. IEEE Transactions on Information Theory, 2004, 50 (6) : 968 -985.
-
9VIKALO H, HASSIBI B, MITRA U. Sphere-constrained ML detection for frequency-selective channels[ J]. IEEE Transactions on Communications, 2006, 54(7): 1179-1183.
-
10DAMEN M O, H El Gamal, CAIRE G. On Maximum-Likelihood Detection and the Search for the Closest Lattice Point. 1EEE Transactions on Information Theory, 2003, 49 (10) : 2389 - 2402.
-
1王宇,林云.MIMO系统中基于MMSE准则的检测算法对容量的影响[J].通信技术,2007,40(12):118-120.
-
2景行,赵琦,柯可人,易婷,洪志良.65nm CMOS工艺中的高速多标准FPGA I/O接口设计[J].固体电子学研究与进展,2014,34(4):381-386. 被引量：1
-
3郭滨,赵禹.基于多天线接收的频谱感知检测[J].工程与试验,2010,50(4):10-12. 被引量：1
-
4张艳,仰枫帆.LDPC结合垂直分层空时码的迭代检测算法的研究[J].南京邮电大学学报（自然科学版）,2015,35(3):47-51. 被引量：3
-
5徐丹,胡艳芬,杨大成.MIMO系统中复数球形译码算法改进[J].海南大学学报（自然科学版）,2008,26(1):29-32. 被引量：1
-
6邓肖中.基于信噪比判决的多维信号检测方法[J].电子测量技术,2011,34(3):29-32. 被引量：2
-
7李庆坤,马洪光,李正生,王鹏毅.基于裁减自动球形算法的多符号差分空时译码[J].计算机仿真,2010,27(3):310-313. 被引量：1
-
8张雪凡.异构分簇的无线传感器网络拓扑控制[J].应用科学学报,2011,29(1):39-43. 被引量：1
-
9贺中堂,姬国庆,张力军.基于QR分解的信号检测算法的研究[J].南京邮电大学学报（自然科学版）,2007,27(3):34-38.
-
10覃博,林云.MIMO-OFDM系统中基于QR分解的检测算法研究[J].山西电子技术,2012(5):53-54.
