ABSTRACT This paper reports on investigations into capacity of ad hoc network whose nodes are equipped with multiple element antennas (MEAs). The investigation of this multi-user Multiple Input Multiple Output (MIMO) system takes into account mutual coupling (MC) in addition to spatial correlation that is present in array antennas. A closed-form expression for an upper bound of mutual information (capacity) of MIMO ad hoc network is derived. An optimal signal transmission scheme is proposed to maximize the MIMO ad hoc network capacity. Simulation results for capacity of non-optimized and optimized cases of signal transmission are presented.
Cite this paper
nullX. LIU, M. BIALKOWSKI, F. WANG and K. HUNCHANGSITH, "Investigations into Capacity of MIMO Ad Hoc Network Including Effects of Antenna Mutual Coupling," Wireless Sensor Network, Vol. 1 No. 5, 2009, pp. 425-433. doi: 10.4236/wsn.2009.15051.
 G. J. Foschini, “Layered space-time architecture for wireless communication in a fading environment when using multielement antennas,” Bell Labs Technical Journal, Vol. 1, pp. 41–59, 1985.
G. J. Foschini and M. J. Gans, “On limits of wireless communications in a fading environment when using multiple antennas,” Wireless Personal Communications, Vol. 6, pp. 311–335, 1998.
E. Telatar, “Capacity of multi-antenna Gaussian channels,” European Transactions on Telecommunications, Vol. 10, No. 6, pp. 585–596, November 1999.
B. Chen and M. J. Gans, “MIMO communications in ad hoc networks,” IEEE Transactions on Signal Processing, Vol. 54, No. 7, Juy 2006.
K. Fakih, J. Diouris, and G. Andrieux, “On the capacity optimization for MIMO ad hoc networks,” IEEE VTC Spring, Singapore, pp. 1087–1091, May, 2008.
D. Shiu, J. Foschini, M. J. Gans, and J. M. Kahn, “Fading correlation and its effect on the capacity of multielemnt antenna system,” IEEE Transactions on Communication, Vol. 48, No. 3, March 2000.
X. Liu and M. E. Bialkowski, “Effect of channel estimation on capacity of MIMO system employing circular or linear receiving array antennas,” International Journal of Electronics, Communications and Computer Engineering, Vol. 1, No. 1, pp. 61–71, 2009.
X. Liu, F. Wang, K. Bialkowski, and M. E. Bialkowski, “On the capacity of MIMO system operating in multi- access scenario,” to appear in Proceedings of APMC09 Singapore, pp. 7010, December, 2009.
T. Svantesson and A. Ranheim, “Mutual coupling effects on the capacity of multi-element antenna systems,” Proceedings of ICASSP01, pp. 2485–2488, April 2001.
J. W. Wallace and M. A. Jensen, “The capacity of MIMO wireless systems with mutual coupling,” IEEE VTC02, Vancouver, Canada, pp. 696–700, 2002.
J. Wallace and M. Jensen, “Mutual coupling in MIMO wireless systems: A rigorous network theory analysis,” IEEE Transactions on Wireless Communications, pp. 1317–1325, March 2004.
P. N. Fletcher, M. Dean, and A. R. Nix, “Mutual coupling in multielement array antennas and its influence on MIMO channel capacity,” IEEE Electron Letters, No. 39, pp. 342–344, 2003.
E. G. Larsson and P. Stoica, “Space-time block coding for wireless communication,” Cambridge University Press, 2003.
C. N. Chuah, D. N. C. Tse, and J. M. Kahn, “Capacity scaling in MIMO wireless systems under correlated fading,” IEEE Transactions on Information Theory, Vol. 48, pp. 637–650, March 2002.
M. Medard, “The effect upon channel capacity in wireless communications of perfect and imperfect knowledge of the channel,” IEEE Transactions on Information Theory, Vol. 46, No. 3, pp. 933–946, May 2000.
S. Durrani and M. E. Bialkowski, “Effect of mutual coupling on the interference rejection capabilities of linear and circular arrays in CDMA systems,” IEEE Transactions on Antennas and Propagation, Vol. 52, No. 4, pp. 1130–1134, April 2004.
M. E. Bialkowski, P. Uthansakul, K. Bialkowski, and S. Durrani, “Investigating the performance of MIMO systems from an electromagnetic perspective,” Microwave and Optical Technology Letters, Vol. 48, No. 7, pp. 1233–1238, July 2006.