By Topic

Performance of Space-Time Coding with Variable-Power Adaptive Modulation in Fading Channel

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

1 Author(s)
Xiangbin Yu ; Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing

In this paper, a space-time coded adaptive MQAM scheme with variable power is developed for MIMO system. Under the target BER and average power constraint, the optimum SNR switching thresholds for the developed scheme are generated by using the Lagrange method, which can make the scheme maximize the spectrum efficiency (SE). Besides, the closed-form expressions for the SE and average BER of the scheme are derived. Simulation results show that our scheme is superior to the corresponding constant-power space-time coded adaptive MQAM scheme. Moreover, the SE and average BER from theory computation accords with those from the simulation results.

Published in:

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Date of Conference:

21-25 Sept. 2007