Performance of beamforming combined with space-time-frequency code in spatially correlated channel
by Neeraj Shrivastava; Aditya Trivedi
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 7, No. 3, 2014

Abstract: Multiple antennas can be used in wireless systems to achieve good quality of service and high data rate communication. Recently, efficient Space-Time-Frequency (STF) codes have been developed to improve the diversity gain. In this paper, we propose an approach to improve Bit Error Rates (BER). Our approach incorporates beamforming and STF coding. The proposed beamforming combined with STF code offers significant improved performance over STF. Simulation results reveal significant gain improvement over STF. The proposed scheme offers significant improved performance over STF. For the BER of 10⁻³, it gives a gain of approximately 3.0 dB over STF without beamforming scheme. It is observed that the proposed scheme gives better performance as compared to the combined Space-Time Block Code (STBC) with beamforming. It gives a gain of approximately 6.0 dB over this scheme. We also calculate the decoding complexity of the proposed scheme over combined STBC with beamforming. It is seen that this approach improves the BER of the system with the same computational complexity.

Online publication date: Fri, 31-Oct-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Wireless and Mobile Computing (IJWMC):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com