基于用户协作的认知MIMO干扰网络自由度上界研究

doi:10.11959/j.issn.1000-436x.2015206

Abstract

Abstract:

In(K+1)-user cognitive MIMO interference network,conventional algorithms distinguish the interference of primary users and secondary users by aligning them to the different interference space,separately.Therefore,it leads to the loss of spatial degrees of freedom(DoF).From the perspective of multiplexing the interference space,a new upper bound of DoF and its necessary condition was deduced.Furthermore,to verify the rationality and validity of the new upper bound,a cooperative joint interference alignment algorithm,in which a joint interference alignment indicator was designed and proposed based on norm theory and Rayleigh-Ritz theorem.The effectiveness of the algorithm was analyzed.Theoretical analysis and simulation results show that the new upper bound of DoF breaks upper bound given in the existing papers,and it can be achieved by the proposed algorithm.

Key words: cognitive MIMO, user cooperation, interference alignment, degrees of freedom

Shi-lei ZHU,Na-e ZHENG,Sheng WANG,Han-ying HU. Upper bound of degrees of freedom in cognitive MIMO interference network with user cooperation[J]. Journal on Communications, 2015, 36(8): 153-160.

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References 14

[1]	JUNG B C , SHIN W Y . Opportunistic interference alignment for interference limited cellular TDD uplink[J]. IEEE Communication Letters, 2011,15(2): 148-150.
[2]	ABDELHAMID B , ELSABROUTY M , ALGHONIEMY M ,et al. Cooperative and non-cooperative multi-secondary users cognitive radio system with channel uncertainty[A]. 2012 IEEE 23rd International Symposium on Personal Indoor and Mobile Radio Communications(PIMRC)[C]. Sydney, 2012. 1582-1587.
[3]	HAYKIN S . Cognitive radio:brain-empowered wireless communications[J]. IEEE Journal of Selected Areas on Communications, 2005,23(2): 201-202.
[4]	ZHANG R , LIANG Y C . Exploiting multi-antennas for opportunistic spectrum sharing in cognitive radio networks[J]. IEEE Journal of Selected Topics in Signal Processing, 2008,2(1): 88-102.
[5]	李钊, 赵林靖, 刘勤 . 认知无线电网络基于空分复用的机会频谱接入[J]. 电子与信息学报, 2011,33(5): 1172-1177. LI Z , ZHAO L J , LIU Q . Space division multiplexing based opportunistic spectrum access in cognitive radio network[J]. Journal of Electronics ＆ Information Technology, 2011,33(5): 1172-1177.
[6]	PERLAZA S M , FAWAZ N , LASAULCE S ,et al. From spectrum pooling to space pooling:opportunistic interference alignment in MIMO cognitive networks[J]. IEEE Transaction on Signal Processing, 2010,58(7): 3728-3741.
[7]	董恒, 宋荣方 . 认知无线电网络中基于业务自适应的干扰对齐新机制探索[J]. 通信学报, 2014,35(4): 25-34. DONG H , SONG R F . Investigation of traffic adaptation based interference alignment for cognitive radio networks[J]. Journal on Communication, 2014,35(4): 25-34.
[8]	CADAMBE V R , JAFAR S A . Interference alignment and degrees of freedom of the K-user interference channel[J]. IEEE Transactions on Information Theory, 2008,54(8): 3425-3441.
[9]	AMIR M,EL-KEYI A , NAFIE M . Constrained interference alignment and the spatial degrees of freedom of MIMO cognitive networks[J]. IEEE Transactions on Information Theory, 2011,57(5): 2994-3004.
[10]	CHEN G , XIANG Z , XU C ,et al. On Degrees of freedom of cognitive networks with user cooperation[J]. Wireless Communications Letters,IEEE, 2012,1(6): 617-620.
[11]	JAFAR S A , FAKHEREDDIN M J . Degrees of freedom for the MIMO interference channel[J]. IEEE Transactions on Information Theory, 2007,53(7): 2637-2642.
[12]	GOMADAM K , CADAMBE V R , JAFAR S A . A distributed numerical approach to interference alignment and applications to wireless interference networks[J]. IEEE Transactions on Information Theory, 2011,57(6): 3309-3322
[13]	PETERS S W , HEATH R W . Interference alignment via alternating minimization[A]. IEEE International Conference on Acoustics,Speech and Signal Processing[C]. Taipei, 2009. 2445-2448.
[14]	张贤达 . 矩阵分析与应用[M]. 北京: 清华大学出版社, 2004.528-548. ZHANG X D . Matrix Analysis and Applications[M]. Beijing: Tsinghua Press, 2004. 528-548.

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