Comparison of 4 transmit antennas OFDM-STBC Systems based on channel feedback

Other Title(s)

مقارنة أنظمة اتصال 4 هوائيات إرسال بتقنية OFDM-STBC مع قناة تغدية خلفية راجعة

Joint Authors

al-Rammah, Muhammad Abu Bakr
Husayn, Muhammad Nuri
Babanah, Muhammad Umar

Source

مجلة جامعة سبها للعلوم البحتة و التطبيقية

Publisher

Sabha University

Publication Date

2019-12-31

Country of Publication

Libya

No. of Pages

5

Main Subjects

Electronic engineering

English Abstract

Space time block coding (STBC) with transmit beamsteering can achieve significant diversity and array gain in multi-antenna wireless systems which is a MIMO transmit strategy supporting the most recently wireless applications.

However, it exploits perfect channel information (CSI) state at the transmitter, which is practically difficult to be achieved due to the limitation of a feedback channel, therefore quantized channel information can be used with a minimum feedback overhead.

Linear precoding with a certain matrix size can be used to 4 transmit antennas system which can be combined with STBC.

Alamouti scheme for 2 transmit antennas can be also extended to 4 transmit antennas.

In addition to its diversity gain, it can achieve array gain based on generation of two beamsteering phase angles.

A comparison of precoded STBC scheme versus extended STBC is made and simulation results show that the performance of extended Alamouti is to have a significant advantage over precoded STBC scheme and can reduce feedback signalling overhead.

Data Type

Conference Papers

Record ID

BIM-1201369

American Psychological Association (APA)

Husayn, Muhammad Nuri& al-Rammah, Muhammad Abu Bakr& Babanah, Muhammad Umar. 2019-12-31. Comparison of 4 transmit antennas OFDM-STBC Systems based on channel feedback. . Vol. 18, no. 4 (2019), pp.281-285.Sabha Murzuq : Sabha University.
https://search.emarefa.net/detail/BIM-1201369

Modern Language Association (MLA)

al-Rammah, Muhammad Abu Bakr…[et al.]. Comparison of 4 transmit antennas OFDM-STBC Systems based on channel feedback. . Sabha Murzuq : Sabha University. 2019-12-31.
https://search.emarefa.net/detail/BIM-1201369

American Medical Association (AMA)

Husayn, Muhammad Nuri& al-Rammah, Muhammad Abu Bakr& Babanah, Muhammad Umar. Comparison of 4 transmit antennas OFDM-STBC Systems based on channel feedback. .
https://search.emarefa.net/detail/BIM-1201369