By Topic

Comparison of capacities of the transmit antenna diversity with the receive antenna diversity in the MIMO scheme

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Gong, J. ; Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada ; Hayes, J.F. ; Soleymani, M.R.

It is well known that spectral efficiency can be dramatically increased by employing multiple transmit and receive antennas. This multi-element technology processes the spatial dimension to improve wireless capacities. Since there are multiple antennas in both transmit and receive sides, a natural question is whether more antennas should be at the transmitter or the receiver in order to achieve greater capacity? A second question is how many antennas should be deployed in the transmitter and the receiver to make the channel capacities reach their saturation level? These two questions are important to the optimization of multiple input multiple output transmission schemes. To address these questions, we explore the important case of when the channel characteristic is known at the receiver. The analytical model assumes that the paths between antennas fade independently. Further, the channel is assumed to be fixed during a burst and to change randomly from burst to burst. To answer the first question, we use the outage capacity complementary cumulative distribution function to show that the capacity with more receive antennas and fewer transmit antennas is higher than the opposite configuration. To answer the second question, we use numerical simulation to explore the saturation points of the capacities for different signal-to-noise ratios. These simulations give results illustrating the relations among the saturation level capacity, antenna number and signal-to-noise ratio.

Published in:

Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on  (Volume:1 )

Date of Conference:

4-7 May 2003