Electrical & Computer Engineering, Department of


Date of this Version



Published in Proceedings of the 8th International Symposium on DSP and Communication Systems (DSPCS'2005) & Proceedings of the 4th Workshop on the Internet, Telecommunications and Signal Processing (WITSP'2005), Noosa Heads (Sunshine Coast, Australia; December 19-21, 2005): 136-139.


The area of Multiple Input Multiple Output (MIMO) communications systems has received enormous attention recently as they can provide a roughly linear increase in data rate by using multiple transmit and receive antennas. MIMO combined with an Turbo coding has been shown as a promising way to achieve near capacity for wireless channels. This paper proposes applying an Asterism based decoder to produce an additional multi user access scheme on top of the primary access method for Ad Hoc networks. After reviewing Sphere and Asterism decoding for MIMO systems with a larger number of transmit than receive antennas, this paper then shows how multiple users transmitting simultaneously can be represented as a MIMO system with more transmit than receive antennas.