Comparison of 4 transmit antennas OFDM-STBC Systems based on channel feedback
Article Sidebar
Deprecated: Return type of Carbon\Carbon::createFromTimestamp($timestamp, $tz = null) should either be compatible with DateTime::createFromTimestamp(int|float $timestamp): static, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sebha/public_html/journal/lib/pkp/lib/vendor/nesbot/carbon/src/Carbon/Traits/Timestamp.php on line 29
February 13, 2020
-
CSI, MIMO transmit diversity, OFDM, STBC, Channel feedback
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.
Full text article
References
[1] Agrawal, D., Tarokh, V., Naguib, A., & Seshadri, N. (1998). Space-time coded OFDM for high data-rate wireless communication over wideband channels. Vol. 3, pp. 2232–2236.
[2] Andrews, J. G. (2014). What will 5G be? IEEE Journal on Selected Areas in Communications, 32(6), 1065–1082.
[3] Michailow, N. (2014). Generalized frequency division multiplexing for 5th generation cellular networks. IEEE Transactions on Communications, 62(9), 3045–3061.
[4] Joham, U. W., M., & Nossek, J. (2005). Linear transmit processing in MIMO communications systems. IEEE Transactions on Signal Processing, 53(8), 2700–2712.
[5] Larsson, G. G. S. P., E. G., & Wong, W. (2002). On the performance of orthogonal space-time block coding with quantized feedback. IEEE Communications Letters, 12(6), 487–489.
[6] Love, D., & Heath, R. (2004). Diversity performance of precoded orthogonal space-time block codes using limited feedback. IEEE Communications Letters, 8.
[7] Yong Soo Cho, Jaekwon Kim, Won Young Yang, & Chung G. Kang. (2010). MIMO-OFDM Wireless Communications with MATLAB. John Wiley & Sons (Asia) Pte Ltd.
[8] Alamouti, S. (1998). A simple transmit diversity technique for wireless communications. IEEE Journal on Selected Areas in Communications, 16, 1451–1458.
[9] Tarokh, H., Jafarkhani, V., & Calderbank, A. (1999). Space-time block coding for wireless communications: Performance results. IEEE Journal on Selected Areas in Communications, 17(3), 451–460.
[10] Jafarkhani, H. (2001). A quasi-orthogonal space-time block code. IEEE Transactions on Communications, 49(1), 1–4.
[11] Akhtar, J., & Gesbert, D. (2004). Extended orthogonal block codes with partial feedback. IEEE Transactions on Wireless Communications, 3(6), 1959–1962.
Authors
This work is licensed under a Creative Commons Attribution 4.0 International License.
In a brief statement, the rights relate to the publication and distribution of research published in the journal of the University of Sebha where authors who have published their articles in the journal of the university of Sebha should how they can use or distribute their articles. They reserve all their rights to the published works, such as (but not limited to) the following rights:
- Copyright and other property rights related to the article, such as patent rights.
- Research published in the journal of the University of Sebha and used in its future works, including lectures and books, the right to reproduce articles for their own purposes, and the right to self-archive their articles.
- The right to enter a separate article, or for a non-exclusive distribution of their article with an acknowledgment of its initial publication in the journal of Sebha University.
Privacy Statement The names and e-mail addresses entered on the Sabha University Journal site will be used for the aforementioned purposes only and for which they were used.