Capacity maximization on multi-relay MIMO cooperative system

Cooperative networking is used widely because it has advantages in terms of network capacity and transmission reliability upgrade. This paper presents an analytical study on channel capacity of amplify-and-forward (AF) relay system with multi-relays in multiple input multiple output (MIMO) system. The problem of resource allocation is studied in this paper and an algorithm of amplification matrix for each antenna of multi-relays is presented. Then we solved above problem using a global optimization method. Results of simulation show that proposed algorithm could greatly improve the channel capacity at little cost.

[1]  Raviraj S. Adve,et al.  Optimal Relay Assignment and Power Allocation in Selection Based Cooperative Cellular Networks , 2009, 2009 IEEE International Conference on Communications.

[2]  Wen-Rong Wu,et al.  Robust MMSE transceiver design in amplify-and-forward MIMO relay system with Tomlinson-Harashima source precoding , 2012, 2012 IEEE Wireless Communications and Networking Conference (WCNC).

[3]  Keyvan Zarifi,et al.  Jointly Optimal Source Power Control and Relay Matrix Design in Multipoint-to-Multipoint Cooperative Communication Networks , 2011, IEEE Transactions on Signal Processing.

[4]  Branka Vucetic,et al.  A New Resource Allocation Technique in MU-MIMO Relay Networks , 2011, IEEE Transactions on Vehicular Technology.

[5]  Hanif D. Sherali,et al.  Optimal Power Allocation in Multi-Relay MIMO Cooperative Networks: Theory and Algorithms , 2012, IEEE Journal on Selected Areas in Communications.

[6]  Meixia Tao,et al.  An efficient beamforming scheme for generalized MIMO two-way X relay channels , 2013, 2013 IEEE International Conference on Communications (ICC).

[7]  Vincent W. S. Wong,et al.  Joint power and channel allocation for multimedia content delivery using millimeter wave in smart home networks , 2014, 2014 IEEE Global Communications Conference.

[8]  Branka Vucetic,et al.  Multi-User Cooperative Base Station Systems With Joint Precoding and Beamforming , 2009, IEEE Journal of Selected Topics in Signal Processing.

[9]  Meng Chang Chen,et al.  Resource management issues in 5G ultra dense smallcell networks , 2015, 2015 International Conference on Information Networking (ICOIN).

[10]  Robert W. Heath,et al.  Coordinated beamforming with limited feedback in the MIMO broadcast channel , 2008, IEEE Journal on Selected Areas in Communications.

[11]  Martin Haardt,et al.  Energy Efficient Two-Way Non-Regenerative Relaying for Relays with Multiple Antennas , 2015, IEEE Signal Processing Letters.

[12]  Xiaoliang Zhang,et al.  Sum rate maximization antenna selection via discrete stochastic approximation in MIMO two-way AF relay with imperfect CSI , 2012, GLOBECOM.

[13]  Tapani Ristaniemi,et al.  Asymmetric resource allocation for OFDMA networks with collaborative relays , 2013, 2013 IEEE 10th Consumer Communications and Networking Conference (CCNC).

[14]  Branka Vucetic,et al.  Cooperative Multi-User MIMO Wireless Systems Employing Precoding and Beamforming , 2009, GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference.

[15]  Ami Wiesel,et al.  Zero-Forcing Precoding and Generalized Inverses , 2008, IEEE Transactions on Signal Processing.

[16]  Alkan Soysal,et al.  Capacity Bounds on MIMO Relay Channel With Covariance Feedback at the Transmitters , 2013, IEEE Transactions on Vehicular Technology.