Line-of-sight multi-input multi-output capacity improvement using change of carrier frequency

In this paper, a technique for realizing a low condition number channel matrix for line-of-sight (LOS) multi-input multi-output (MIMO) transmission scenario is presented. The main idea behind the proposed work is to make use of a change in carrier frequency of adjacent transmit antennas to increase the MIMO capacity gain without requiring any additional bandwidth. We derive the criteria for the maximum capacity in terms of difference between carrier frequency for adjacent transmit antennas. The performance of this technique is investigated with the help of simulation results.

[1]  Branka Vucetic,et al.  Space-Time Coding , 2003 .

[2]  Zhang Yerong,et al.  Maximum MIMO capacity of Rice channel , 2009, 2009 International Conference on Wireless Communications & Signal Processing.

[3]  Jiyun Shen,et al.  A Novel Approach for Capacity Improvement of 2x2 MIMO in LOS Channel Using Reflectarray , 2011, 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring).

[4]  Seung-Jun Yu,et al.  Wireless Communication , 1916, Nature.

[5]  I. Sarris,et al.  Maximum MIMO Capacity in Line-of-Sight , 2005, 2005 5th International Conference on Information Communications & Signal Processing.

[6]  Ouyang Shan,et al.  Capacity analysis of high-rank line-of-sight MIMO channels , 2012 .

[7]  Frode Bøhagen,et al.  Construction and capacity analysis of high-rank line-of-sight MIMO channels , 2005, IEEE Wireless Communications and Networking Conference, 2005.

[8]  David Tse,et al.  Fundamentals of Wireless Communication , 2005 .

[9]  Wei Hong,et al.  Characterization of Line-of-Sight MIMO Channel for Fixed Wireless Communications , 2007, IEEE Antennas and Wireless Propagation Letters.

[10]  Jawad Rasool,et al.  On multiuser MIMO capacity benefits in air-to-ground communication for air traffic management , 2009, 2009 6th International Symposium on Wireless Communication Systems.

[11]  Christian Callegari,et al.  Advances in Computing, Communications and Informatics (ICACCI) , 2015 .

[12]  Branka Vucetic,et al.  Space-Time Coding , 2003 .